IMT-Wiki - User contributions [en]

User:Michael.Adams

2019-07-11T07:36:58Z

Michael.Adams:

__NOTOC__ 
{{Dead Box}}
=Michael Adams=


[[file:User_Michael_Adams.jpg|thumb|200x276px|rechts|Klassisches Bewerbungsfoto]]

'''Department''': [[F&E4]]

'''Research Field''': Time-resolved spectroscopy

'''Building''': 307

'''Room''': 222

'''Phone''': 0721-608-22607

'''E-mail''': mailto:michael.adams@kit.edu

== Job description ==
Since April 1st 2015 I am a PhD student in the group of [[User:Bryce.Richards|Prof. Dr. Bryce S. Richards]] at IMT. Previously I studied physics at KIT and did my master thesis on „STED-enhanced 2D laser lithography in thin resist films“ at the Institut für Angewandte Physik (APH).

My work here centers on time-resolved ultrafast spectroscopy. I built and maintain the Transient Absorption setup in the [[AMOS-Tralala|Tralala]] lab. My research focus is on understanding the movement of energy/electrons in materials such as surface anchored metal organic frameworks (SURMOFs) after photoexcitation.

== Software skills ==
* LabVIEW
* Matlab
* Origin

== Trivia==
* Member of the [[Wiki-Team]]
* Member of the [[Karlsruhe School of Optics & Photonics (KSOP)]]
* Made an [https://git.scc.kit.edu/michael.adams/kit-poster-template-svg/tree/master inofficial KIT poster template for Inkscape]
* [https://scholar.google.com/citations?user=GGRpYmcAAAAJ&hl=de List of publications] on Google Scholar


[[Category:KSOP]]
[[Category:Ehemalige Mitarbeiter - Former Employees]]
[[Category:Ehemalige Doktoranden - Former PhD Students]]

Main Page

2019-02-20T17:09:18Z

Michael.Adams: Reverted edits by Hang.Hu (talk) to last revision by Michael.Adams

__NOTOC__ 

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Welcome to the IMT wiki!

== First steps ==
=== Overview ===
You can find an overview of some of the content here: [[Kategorien - Categories|Table of Contents]]. Other useful starting points are the [[:Category:Geräte - Devices|list of devices]], [[:Category:Mitarbeiter_-_Employees|employees]] or the [[:Category:QMS|quality management pages]] and of course the [[Special:Search|Search function]].
=== Log in ===
In order to create or edit pages you need to [[Special:Userlogin|login]]. To do this, you type in your username ''FirstName.FamilyName'' ('''Important''': use capital letters for the first letter of first and family name). If you forgot your password or your aren't sure if you ever logged in before, just click on "''Forgotten your login details?''". A new password will be sent to you by email. If you don't receive an email, please contact [[user:Ulrich.Klein|Ulrich Klein]] so he can have a look if there are any problems with the account.
=== Create a new page ===
If you want to create a new page please type the name of the site (German title - English title) into the searchbox and click ''Search''. If the page does not exist yet you will be asked if you want to create a new page. To do so, click on the red link next to "Create the page".

There are some tutorials that explain how to create certain special pages:
* [[Tutorial Benutzerseite/English | Tutorial User Page]]
* [[Tutorial Neue Geräteseite/English | Tutorial New Device]]
* [[Tutorial Projektseite/English | Tutorial New Project Page]]
* [[Tutorial Materialseite/English | Tutorial New Material Page]]

The recommended language for new content is English.

'''We encourage you to create new pages and fill them with content or update existing pages!'''

=== Wiki-Syntax ===
If you are new to editing a Wiki you can find some information on the [[Wiki-Syntax]]. If you have further questions or ideas or need help, feel free to contact a member of the [[Wiki-Team]]!

There is also a [[Sandkasten - Sandbox | sandbox page]] where you can play around.

=== Access rights ===
Everyone in IMT intranet has reading access to the IMT wiki without logging in. Login accounts are available only for IMT staff members and IMT PHD students.
If you need to access IMT wiki from outside IMT please ask [[user:Ulrich.Klein|Ulrich Klein]] for special access data.

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Willkommen im IMT-Wiki!

== Erste Schritte ==
=== Überblick ===
Um einen Überblick über einen Großteil der Inhalte zu bekommen ist der [[Kategorien - Categories|Kategoriebaum]] nützlich. Weitere nützliche Einstiegspunkte sind die [[:Category:Geräte - Devices|Liste der Geräte]], [[:Category:Mitarbeiter_-_Employees|Mitarbeiter]] oder die [[:Category:QMS|Qualitätsmanagement-Seiten]] sowie selbstverständlich die [[Special:Search|Such-Funktion]].

===Anmeldung===
Um Seiten erstellen oder bearbeiten zu können, musst du dich [[Special:Userlogin|anmelden]]. Dazu gibst du als Nutzernamen ''Vorname.Nachname'' ein ('''Wichtig:''' die Anfangsbuchstaben von Vor- und Nachnamen müssen großgeschrieben sein). Falls du dein Passwort vergessen hast, oder nicht sicher bist, ob du schon einen Account hast, klicke einfach auf "''Forgotten your login details?''". Dann wird dir per Email ein neues Passwort zugesendet. Falls du keine Email bekommst, wende dich an [[user:Ulrich.Klein|Ulrich Klein]], der dann nachschaut, ob es Probleme mit dem Account gibt.

=== Eine neue Seite anlegen ===
Wenn du eine neue Seite anlegen willst, kannst du den gewünschten Seitennamen (Deutscher Name - Englischer Name) in das Suchfeld links eingeben, auf "Suchen" klicken. Sofern die Seite nicht bereits existiert hast du nun die Möglichkeit diese neu anzulegen. Klicke hierfür auf den roten Link neben "Create the page".

Für die Erstellung einiger speziellen Seiten gibt es jeweils eine Anleitung:
* [[Tutorial Benutzerseite | Anleitung Benutzerseite]]
* [[Tutorial Neue Geräteseite | Anleitung Neue Geräteseite]]
* [[Tutorial Projektseite | Anleitung Neue Projektseite]]
* [[Tutorial Materialseite | Anleitung Neue Materialseite]]

Wir empfehlen neue Seiten auf Englisch zu verfassen um dem internationalen Charakter des Instituts und seiner Mitarbeiter gerecht zu werden.

'''Wir ermuntern alle Nutzer dazu neue Seiten anzulegen und mit Inhalt zu füllen oder bestehende Seiten zu aktualisieren!'''

===Wiki-Syntax===
Hier findet man eine Übersicht zur [[Wiki-Syntax]]. Für Vorschläge, Fragen und Hilfe steht das [[Wiki-Team]] jederzeit zur Verfügung.

Man kann sich zum Ausprobieren auf der [[Sandkasten - Sandbox | Sandkasten]] Seite austoben.

===Zugriffsrechte===
Im IMT-Intranet hat jeder im IMT-Wiki ohne Anmeldung Leserechte. Benutzerkonten für das Wiki erhalten nur IMT-Mitarbeiter und IMT-Doktoranden. Falls Bedarf besteht, das IMT-Wiki von außerhalb IMT zu benutzen, dann kann man von [[user:Ulrich.Klein|Ulrich Klein]] spezielle Zugangsdaten dafür erhalten.
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== Other sources of information ==
* [http://intranet.kit.edu/ KIT Intranet]
* IMT quality management manual (deprecated) file:///J:/iso9001/QW/QM-DOK/Qualitaetshandbuch-Intranet/IMT-QMH/QM-System.htm (copy address in browser)
* [http://www.imt.kit.edu/ IMT website]
* [http://www.imt.kit.edu/seminar_imt.php IMT seminar schedule]
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== Weitere Informationsquellen ==
* [http://intranet.kit.edu/ KIT-Intranet]
* IMT-Qualitätsmanagement-Handbuch (überholt): file:///J:/iso9001/QW/QM-DOK/Qualitaetshandbuch-Intranet/IMT-QMH/QM-System.htm (Adresse in Browser kopieren)
* [http://www.imt.kit.edu/ IMT-Webseite]
* [http://www.imt.kit.edu/seminar_imt.php Terminkalender des IMT-Seminars]
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Main Page

2019-02-13T08:42:38Z

Michael.Adams: Reverted edits by Hang.Hu (talk) to last revision by Michael.Adams

Checkliste für Bewirtungen

2018-05-03T13:16:05Z

Michael.Adams: Create page based on PDF from Mr Moritz

Informationen sollten frühmöglichst an die Sekretariate/AC gehen;
mindestens 5 Tage vorher, bei Essensbestellung mind. 8 Tage vorher.

# Besprechungsraum buchen (Aufgrund der Fahrstuhlproblematik sind Bewirtungen im Seminarraum soweit wie möglich zu vermeiden und immer Sonderfälle, die vorher abzustimmen sind.)
# Die '''Sekretariate''' benötigen folgende Angaben:
#* Datum der Bewirtung
#* Ort (Besprechungszimmer muss gebucht sein)
#* Anzahl der Personen
#* Umfang der Bewirtung (Kaffee, Wasser, Essen 4)
#* Beginn und Ende der Besprechung
#* Anlass der Bewirtung (Agenda oder Einladung)
#* Ansprechpartner benennen
#* Falls eine größere Zahl von Gästen (mehr als 14 Personen) erwartet wird, muss die Bewirtung über das Casino (mit Anlieferung, Auf- und Abbau) erfolgen.
#* Bei Casinobestellungen ist die Angabe der Finanzierung (PSP-Nummer) notwendig.
# Falls Essen (Casino) zur Anlieferung bestellt wird (z. B. bei einem Workshop), ist zu beachten,
#* dass die Getränke dazu mitbestellt werden
#* dass das Geschirr mitbestellt wird
#* '''dass der Auf- und Abbau mitbestellt wird'''
#* dass eine Teilnehmerliste erstellt wird (muss im SAP bei der Bestellung angehängt werden)
#* dass die Pforte über die Veranstaltung und Teilnehmer informiert wird
#* '''dass die Sekretariate, Herr Gramlich (Hausmeister) und Herr Benz''' über den Zeitpunkt der Anlieferung und Abholung informiert sind und über die Art der Bestellung (am besten schriftlich)
#* '''dass die Reinigung gewährleistet ist '''
#** bei internen Veranstaltungen, Absprache mit Fr. Zindl
#** bei externen Veranstaltungen muss der Nutzer die Reinigung selbst beauftragen (Info. an Hrn. Dinglreiter)
# '''Herr Gramlich (Hr. Benz)''' ist zu informieren bzw. Ansprechpartner
#* wenn Tische auf- u. abzubauen sind
#* wie die Tische angeordnet werden sollen
#* ob Stehtische gewünscht werden
#* ob Posterwände aufgebaut werden müssen
#* ob ein Beamer benötigt wird
# Der verantwortliche Ansprechpartner muss am Veranstaltungstag vor Ort sein und den Auf- und Abbau kontrollieren

Bitte beachten Sie, dass '''vor''' der Anlieferung der Getränke/Speisen die Tische schon fertig angeordnet stehen müssen!

''Diese Checkliste soll einen reibungslosen Ablauf gewährleisten!''

[[Category:Listen_-_Lists]]
[[Category:IMT_Intern]]

DAAD Kongressreisenprogramm

2018-04-23T09:14:45Z

Michael.Adams: Created page with "The German Academic Exchange Service (DAAD) offers a scholarship for travelling to and presenting (oral presentation or poster) at international conferences for PhD students a..."

The German Academic Exchange Service (DAAD) offers a scholarship for travelling to and presenting (oral presentation or poster) at international conferences for PhD students and postdocs. It is called "Kongressreisenprogramm".

'''The following information is just a very short summary and guaranteed to be incomplete'''. Please refer to the [https://daad.de/go/stipd57369745 official website].

=== Requirements ===
* The conference is abroad
* You permanently live in Germany (you do NOT need to be a german citizen!)
* You work at a german academic institution with the aim of getting a PhD (or have it already)

=== What is covered?===
* Conference fees
* Daily allowance (amount depends on the target country, [https://www.daad.de/medien/ausland/dokumente/aufenthaltskosten_kongress.pdf here's the list for 2018])
* Travel expenses (amount depends on the target country, [https://www.daad.de/medien/ausland/ausschreibungen/kongressreisen_reisekostenpauschalen_2018.pdf here's the list for 2018])
The scholarship does not cover the complete costs of the trip. Also, if additional third-party funding exists (e.g. another scholarship) this has to be used up preferentially. Some scholarships (e.g. if they require you to return to your home country after the PhD) even prevent you from getting funded by DAAD.

=== Application ===
The application is done online. The application documents exist only in German. Important deadline: Some application documents need to be sent in '''at least 120 days before the first day''' of the conference! Other documents (e.g. letter of acceptance from the conference) can be handed in later, up to four weeks before the conference. You can apply for the scholarship every 12 months.

=== Links ===
* [https://daad.de/go/stipd57369745 Official Website (german)]
* [https://www.daad.de/medien/ausland/dokumente/faq_kongress.pdf FAQ (german)]

{{suchbegriffe|Reise, Reiseantrag, Dienstreise, Geschäftsreise, Reisekosten, Konferenz, Stipendium, Geld, money, Zuschuss, Vortrag, Poster, Ausland}}

[[Category:Doktorandenzeug_-_PhD_Stuff]]

AMOS-Tralala

2018-03-08T14:44:06Z

Michael.Adams: Add Frank Decker contact details

<div style="padding:20px;background:#FDA;">The purpose of these instructions is to give you a quick overview on how to work with the devices. You should still be familiar with the manual and receive a proper introduction from the lab leader or the principal users.</div>

'''Lab name''': Tralala ('''Tr'''ansient '''A'''bsorption '''La'''ser '''La'''boratory) aka Fastlab

'''Lab location:''' [http://www.kit.edu/campusplan/?id=341 Building 341 (ITG)], room 110

'''Phone number:''' 29163

'''Lab leader:''' [[User:Ian.Howard | Ian Howard]]

'''Principal users:''' [[User:Michael.Adams | Michael Adams]], [[User:Marius.Jakoby | Marius Jakoby]]

'''Access:''' The building belongs to the [http://itg.kit.edu Institute of Toxicology and Genetics (ITG)], the door is secured with a card reader. To get access to the building with your KIT card you have to bring it to the ITG secretary ([http://www.itg.kit.edu/52_431.php Selma Huber], B316 / R130). Additionally, you need a written statement (E-Mail) from the lab leader. The lab door should be always unlocked; if you find it accidentally locked, get in contact with [https://www.itg.kit.edu/52_402.php Frank Decker] (B313 / R108, phone 23301).

== Optical table ==
The optical tables rest on vibration isolation feet (Newport PL-2000; even at Newport there seems to be no manual for the PL-2000, their service recommends to use the I-2000 manual). The isolators are passive, that means they have no direct connection to a pressurized air line. Instead, they have to be re-pressurized manually every once in a while. There is a foot pump available for this purpose. The typical air pressure according to the manual is 10 - 85psi (0.7 - 6.0 kg/cm²).

== Cooling ==

[[File:Tralala Cooling.png|thumb|right|Diagram of the cooling circuit]]

There are two chillers in the lab. One is located inside the rack (PolyScience Recirculator) and cools exclusively the Empower Pump Laser. The temperature setpoint is at 18°C.

The second chiller (ThermoFischer Merlin M25) is outside the rack. The cooling water (deionized water) goes through the Millenia, Tsunami and finally the Spitfire, where it cools the High-Voltage unit and the removes heat from the Peltier-cooled crystal. Most heat is generated at the crystal when the Empower output is turned on. The chiller's setpoint is at 17°C, the pressure should be below 40psi. Insufficient cooling will lead to the Millenia/Tsunami output becoming unstable.

The water levels in the chillers should be checked periodically (e.g. once a month). Using not enough water could impact the laser stability and could damage the chiller. The ThermoFischer chiller requires deionized water. If the canister in the lab is empty it can be refilled directly at the ITG in room 105 (from a canister next to the sink) or in room 143 (there's a Millipore Synergy Water Purification System).

== Spitfire Laser System ==
[[file:Tralala_rack.jpg|thumb|right|upright=1.5|Rack-mounted controls for the Spitfire Laser system]]
The SpectraPhysics Spitfire system is a regenerative amplifier that amplifies optical femtosecond pulses emitted by a mode-locked Ti:sapphire laser (SpectraPhysics Tsunami). A high power diode-pumped laser (SpectraPhysics Empower) is used as a pump for the Spitfire amplifier.

The Spitfire outputs femtosecond laser pulses with a center wavelength of 800nm and a repetition rate of 1kHz (can be divided). The output power is around 3.6W.
=== Startup procedure ===
The controls for the Spitfire system are located inside a temperature-controlled rack.
# The Empower, Tsunami and TCU (Temperature Control Unit) power supply should already be on. If not, turn them on
# Turn on the TDG (Time and Delay Generator) power supply
# Use they keyswitches to activate the Empower, Tsunami and TDG
# Press ''Laser Power'' on the small black Tsunami control box and wait for the diodes to warm up
# While you wait, turn on the cooling fan next to the Tsunami (helps with stability) and switch the laser warning lamp outside the lab on
# Once the diodes are ready, turn on the Tsunami by long-pressing the ''Laser Power'' button and wait for the output power to reach the set value (3.30W).
# Open the OceanOptics SpectraSuite spectrometer software on the PC
# Open the Spitfire software on the PC
# Remove the beam tube at the Tsunami's output and modelock the laser: [[file:Modelocking.png|right|thumb|upright=0.9|Example spectra for how the Tsunami's spectrum should look before (top) and after (bottom) modelocking.]]
## Use the OceanOptics spectrometer (HR2000) to monitor the spectrum of the laser
## Wiggle the ''prism'' knob on the Tsunami until the spectrum changes from a sharp line to a broad distribution
## Make sure there is no CW-breakthrough (sharp line in the spectrum)
## Make sure both Bandwidth Detector (BWD) indicators in the Spitfire software are on
# Once the Tsunami is mode-locked put the beam tube back in
# Clear the faults in the Spitfire software by clicking on them
# Long-press ''Run'' in the software (this opens the shutter to the Empower pump laser)
# Go to ''Channels'' and open Channels 3, 2 and 1

=== Shutdown procedure ===
# Stop the amplifier in the Spitfire software
# Press ''Laser Power'' on the Tsunami's control box to stop the laser output
# Use the keyswitches to turn off the Empower, Tsunami and TDG
# Turn off the cooling fan next to the Tsunami
# Optional: The TDG power supply can be switched off
Important: Leave the power supply for the TCU, Tsunami and Empower on. These take very long to start up again once they have been shut off.

=== Maintenance ===
Inside the TCU is a humidity filter that has to be changed roughly every six months. New filters should be kept in stock.

=== Troubleshooting ===
Sometimes the Spitfire Software will fail to connect to the system and does not start. This is usually a problem with the LAN card that can be fixed the following way:

# Open the Windows Device Manager
# Locate the Intel network card that is connected to the Spitfire (Intel(R) 82574L Gigabit Network Connection)
# Right-click and disable the device, a white overlay icon should appear.
# Right-click and enable the device again
# Now the blue progress bar in the Spitfire software should start to fill and the software should start.

== Innolas Laser ==
[[file:Innolas_picolo_aot_mopa.jpg|right|thumb|upright=1.5|Innolas Picolo AOT MOPA]]
The Innolas Picolo AOT 1 MOPA Sub-Nanosecond Laser is a compact oscillator/amplifier laser system. It can be used at 532nm and 355nm wavelength.

=== Values from the data sheet ===

* Max Rep-rate: up to 5kHz, optimized for 1kHz
* Max Pulse Energy at 532nm: 60µJ
* Max Pulse Energy at 355nm: 30µJ
* Pulse Width at 1064nm (FWHM): <800ps @1kHz 
* Power Stability at 1064nm: < 5% 
* Max Average Power: 800mW
* Jitter to external trigger: < +/- 0.4ns 

=== Changing the wavelength ===
The output wavelength depends on the settings of two thermal controllers inside the laser head, TEC4 and TEC5. These temperatures can be set on the controller unit. The optimal values for 532nm or 355nm operation can be found in the manual. As of October 2016 these values are:
* 532nm: TEC4 = 44.0°C TEC5 = 54.2°C
* 355nm: TEC4 = 55.3°C TEC5 = 54.0°C
The controller "forgets" its settings after being disconnected from the power grid, you then need to set the values again after startup.

You need also to change the output caps at the laser head. Unused output ports have a beam block on them. So when changing the wavelength you need to open the required port and put the blocking cap on the previously open one.

=== Startup procedure ===

# Turn the key on the controller to position 1
# Wait for the temperature controllers to reach their target temperature
# Set the desired values for TEC4, TEC5 and frequency
# Turn the key on the controller to position 2
# Press the ''On/Off'' button to turn laser output on

=== Shutdown procedure ===

# Press the ''On/Off'' button to turn laser output off
# Turn the key on the controller to position 0
# Optional: Turn off power at the controller's rear side. This will cause the controller to "forget" manually entered settings.

== Transient Absorption Spectroscopy ==
The Transient Absorption setup is maintained by [[User:Michael.Adams | Michael Adams]].

=== Initial steps ===
# Turn on the Spitfire laser system (see above)
# Turn on the [http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=287 Thorlabs MC2000 Optical Chopper System]
# Turn on the [http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=988 Thorlabs FW102C filter wheel]
# Turn on the Thorlabs Delay stage controler (below the table, the switch is on the back)
# Make sure that the tec5 electronics for the detector are powered
# Make sure all devices are connected to the PC

=== Chopper Wheel ===
The chopper wheel reduces the pulse frequency of the 1kHz Spitfire output to 500Hz by blocking every second pulse. The Input signal (TTL) comes from the Spitfire, the Output signal (TTL) has to be connected to the tec5 PCI card inside the lab PC with a custom adapter. The controller has to be set to external reference. In order to halve the pulse frequency the harmonic multipliers have to be set to N=1 and D=2 (because f_ext = f_ref * N / D).

=== Pump light ===
==== 400nm (SHG of Spitfire) ====
Part of of the Spitfire output passes through the chopper wheel, goes via the delay stage through a beam reducer onto a Beta barium borate (BBO) crystal. This crystal converts the 800nm light to a wavelength of 400nm (frequency doubling). Residual 800nm light is removed with a shortpass filter. Check the quality of the 400nm light. If there is a dark line through the spot change the phase on the chopper wheel controller.

==== 355nm or 533nm (Innolas laser) ====
To-Do

==== Other wavelengths (TOPAS) ====
To-Do

=== Probe light (white light) ===
The 800nm output of the Spitfire amplifier is focussed into a sapphire crystal (located inside a cage system) to generate a white-light supercontinuum. Check the white light quality after the crystal. If no white light is visible, increase the power with the linear ND filter that is located earlier in the beampath. If the white light flickers unstably reduce the power or carefully move the crystal around. The spot should look smooth and without structure.

There will be an intense residual 800nm component in the white light that can be filtered out by placing a filter in the white light beampath. Alternatively there is a print-out spatial filter (essentially a black line printed on transparent foil) that can be placed directly in front of the detector inside the spectrometer box. You have to move it around manually so the blocking line is located where 800nm light hits the detector. This is best done in LiveView.

The white light should exit the cage not collimated but slightly focussed, so that the focus is located at the sample position. To achieve this, move the second lens in the crystal cage.

After the sample position the light passes the filter wheel and enters the spectrometer box that holds a mirror, a prism and the tec5 detector electronics. With the vertical axis of the mirror inside the box you can correct the height of the beam to properly hit the detector. Use the LiveView mode for this: move the beam up and down and look for the signal maximum. With the horizontal axis you can change the wavelength region to measure.

=== Software ===
The control software for the setup is written in LabVIEW, the project file is located under <tt>D:\Labview Programs\Michael Adams\TA_control\TA_control.lvproj</tt>.

Start and run TA_control.vi. Normally, you will need to run no other VI. Some helper VIs that can be run as standalone tools are located in the "utilities" directory.

The software can be run in a ''Simulation mode'' that does not need the lab hardware to be connected to the PC. This is useful only for development purposes.

The software should be closed with the ''Exit Program'' button and - if possible - not with LabVIEW's ''Abort Execution'' button.

=== Measurement ===

==== LiveView: Check Signal, Find Zerotime and Set Background ====
Once everything is set up, run LiveView in TA_control. The parameters here are:
* ''number of burst pairs'': When a trigger signal arrives, this is the number of spectra pairs (pump on/off) that are measured in one burst train. You should keep this at 50, values above 200 tend to lead to errors from the tec5 electronics.
* ''number of burst trains'': How many burst trains are to be measured.
* ''Integration time'': This should be set to the time between two laser pulses. For standard operation of the Spitfire amplifier at 1kHz, this has to be set to 1ms accordingly. Otherwise the spectra measurements will be out of sync with the laser.

Press ''Start'' to begin taking measurements. You need to stop and restart the measurements if you want to change the parameters. After pressing ''Stop'' you have to wait for the current burst train to finish, this is normal.

In the ''Waveforms'' tab you can see current measured spectra, which is useful for alignment of the white light on the detector. Make sure that the detector is not saturated. You can also see the dT/T signal. If you switch the window back to the TA_control.vi you can manually move the delay stage. This helps you in identifying where zerotime is on the stage (note the stage position in mm).

You need to make a measurement of the background signal. Block the white light on the table (but leave the pump light on) and press ''Start''. In ''Waveforms 2'' you can see the accumulated spectrum of all the measurements since you last hit ''Start''. There are two graphs, because the pump on/off background can differ in the amount of stray pump light. Use the ''Single Channel Viewer'' to look at a single channel. Usually the signal increases over time at the beginning of a measurement. If this is the case wait until the single channel signal reaches a constant level and restart the measurement. Leave it running until you are satisfied with the quality of your background spectrum, e.g. until the ''Difference between accumuated spectra'' reaches stable values. Save the backgrounds by pressing ''Set backgrounds''. If you want to redo the background measurement reset the active backgrounds first.

Press ''Exit'' to return to TA_control.

==== Generate Stage Position File ====
The positions for the delay stage are loaded from a simple textfile. It has to contain a list of numbers (the stage positions in mm) separated by line breaks. You can create this list manually or use the ''Generate Stage Position File'' dialog. You enter the first position, the last position and where zerotime is on the stage (in mm). You can select at how many positions before and after zerotime you want to perform a measurement and choose between linear and logarithmic spacing. You can then save the file for later reference or manual editing. Close the window by clicking ''Done'', the current positions are carried over to the main TA_control window.

==== Wavelength Calibration ====
Which detector channel receives which wavelengths depends on the sample thickness and the way it is mounted as well as the position of the mirror inside the spectrometer box. If any of those parameters are changed, a new wavelength calibration is necessary. Press ''Wavelength Calibration'' in TA_control. You can enter individual integration times for the five calibration measurements. These are performed after you click ''Let's go'' by iterating through the filters in the motorized filter wheel. These filters are:
# 450nm Longpass
# 532nm Bandpass
# 633nm Bandpass
# 730nm Bandpass
# 850nm Bandpass
# 950nm Bandpass

During normal TA measurements, the 450nm Longpass filter at position 1 is used to remove stray light of the 400nm pump. The wavelength calibration interates through the five bandpass filters and takes a spectrum for each. Usually there is less light in the short-wavelength region, adapt the integration time accordingly to get decent spectra for all filters with enough signal and without saturation.

The spectra are automatically fitted with a gaussian distribution to get the center channel. Select which wavelength-channel pairs you want to keep in the calibration.You can then save the calibration for later reference or manual editing. Only the selected wavelength-channel pairs are saved. How data is interpolated between them is not part of the calibration. A few possible interpolation methods can be displayed as a preview. Close the dialog by clicking ''Done'', the current calibration is carried over to the main TA_control window.

==== Start Measurement ====
Now everything should be ready so you can start the measurement. Go to TA_control's Setup-tab and choose your settings:
* ''Integration time, number of burst trains, number of burst-pairs'': These are the same settings as mentioned above for LiveView. Usually you can leave the integration time at 1ms and the number of burst-pairs at 50 and use only the number of trains to define how long you want to measure at each stage position.
* ''Sensor Work Mode'': Should be set to ExteralTriggerSlope. Refer to the tec5 manual for more information.
* ''Stage positions file, Wavelength calibration'': Select a position or calibration file to load.
* ''Save data directory'': Select the directory where your measurement data should be saved
* ''Base filename'': Enter the filename base without path or file extension. The filename will automatically generated as C:/path/to/file/FILENAME_001.bin, C:/path/to/file/FILENAME_002.bin, and so on.

You can check the backgrounds, stage positions and wavelength calibration before you start. Once you are ready, press ''Measure TA Spectrum''.

The spectator window opens and you can watch your dataset grow as it is being measured. You can also import previously measured TA data to compare.

To be continued...

== Cryostat ==
To-Do (Philipp?)

[[Category:Geräte_-_Devices]]
[[Category:F&E4]]
[[Category:AMOS]]

File:Chemikalienbestellungen Vorgehen KL en.gif

2018-02-12T09:22:22Z

Michael.Adams: Michael.Adams uploaded a new version of "File:Chemikalienbestellungen Vorgehen KL en.gif": New version from 12 Feb 2018 via Kerstin Länge

File:Chemikalienbestellungen Vorgehen KL de.gif

2018-02-12T09:21:32Z

Michael.Adams: Michael.Adams uploaded a new version of "File:Chemikalienbestellungen Vorgehen KL de.gif": New version from 12 Feb 2018 via Kerstin Länge

Wiki-Team

2018-02-08T12:28:23Z

Michael.Adams: Reverted edits by Saba.Gharibzadeh (talk) to last revision by Michael.Adams

[[{{PAGENAME}}/english|English version]]

Das Wiki-Team besteht aus den Doktoranden [[User:Daniela.Sanchez|Daniela Sanchez]], [[User:Margarita.Zakharova|Margarita Zakharova]] und [[User:Michael.Adams|Michael Adams]].

Wir sind offen für Vorschläge und Verbesserungen am Wiki, stehen bereit, falls Hilfe benötigt wird und beantworten alle möglichen Fragen rund um das Wiki.

Am Besten erreicht man uns indem man eine Mail an '''wiki@imt.kit.edu''' schreibt.

[[Category:IMT-Wiki]]

User:Michael.Adams

2017-12-20T12:04:59Z

Michael.Adams: Cleanup & update

__NOTOC__ 

=Michael Adams=


[[file:User_Michael_Adams.jpg|thumb|200x276px|rechts|Klassisches Bewerbungsfoto]]

'''Department''': [[F&E4]]

'''Research Field''': Time-resolved spectroscopy

'''Building''': 307

'''Room''': 222

'''Phone''': 0721-608-22607

'''E-mail''': mailto:michael.adams@kit.edu

== Job description ==
Since April 1st 2015 I am a PhD student in the group of [[User:Bryce.Richards|Prof. Dr. Bryce S. Richards]] at IMT. Previously I studied physics at KIT and did my master thesis on „STED-enhanced 2D laser lithography in thin resist films“ at the Institut für Angewandte Physik (APH).

My work here centers on time-resolved ultrafast spectroscopy. I built and maintain the Transient Absorption setup in the [[AMOS-Tralala|Tralala]] lab. My research focus is on understanding the movement of energy/electrons in materials such as surface anchored metal organic frameworks (SURMOFs) after photoexcitation.

== Software skills ==
* LabVIEW
* Matlab
* Origin

== Trivia==
* Member of the [[Wiki-Team]]
* Member of the [[Karlsruhe School of Optics & Photonics (KSOP)]]
* Made an [https://git.scc.kit.edu/michael.adams/kit-poster-template-svg/tree/master inofficial KIT poster template for Inkscape]
* [https://scholar.google.com/citations?user=GGRpYmcAAAAJ&hl=de List of publications] on Google Scholar


[[Category:Mitarbeiter - Employees]]
[[Category:Doktoranden - PhD Students]]
[[Category:F&E4]]
[[Category:KSOP]]
[[Category:AMOS]]

Wiki-Team/english

2017-11-06T11:47:30Z

Michael.Adams: Add Margarita

The Wiki-Team consists of the PhD students [[User:Daniela.Sanchez/English|Daniela Sanchez]], [[User:Margarita.Zakharova|Margarita Zakharova]] and [[User:Michael.Adams|Michael Adams]].

If you need any help or have any questions regarding this wiki, please don't hesitate to contact us. Of course, we are also open to any suggestions and improvements.

To contact the Wiki-Team please write an e-mail to '''wiki@imt.kit.edu'''.

[[Category:IMT-Wiki]]

Wiki-Team

2017-11-06T11:46:37Z

Michael.Adams: Add Margarita

Tutorial: Templates

2017-11-02T16:44:45Z

Michael.Adams: further reading

Templates are a quick way to put a preformatted piece of wiki code into any wiki page. There are several templates available in this wiki and you can create your own if you want to. You can find a [[Special:MostLinkedTemplates|list of the most-used templates]].
== Example usage ==
This page describes how to use some of these templates.

=== Former employee ===
This is an infobox that you can put at the beginning of a user's page after they have left the institute.
It is one of the easier templates to use. You just enter <pre>{{Dead Box}}</pre> in the wiki code. Beware that template names are case-sensitive! The preview of this box looks like this:
{{Dead Box}}

''Side note: We are somewhat sorry for the name of this template. It was picked a while ago and it is now impractical to change it.''

=== Outdated device ===
For devices that no longer exist you can do the same as for emplyees:
<pre>{{Dead Device}}</pre>
This will create a box like this:
{{Dead Device}}

=== Keywords ===
You can add keywords or search terms (german: ''Suchbegriffe'') to any page. This facilitates finding the page with the search function. To add keywords that don't appear in the page's content but might prove useful, add a box at the end of your page like this:
<pre>{{suchbegriffe|keyword1, keyword2, ...}}</pre>
This will create a box like this:
{{suchbegriffe|keyword1, keyword2, ...}}

=== Infobox Arbeitsanweisung ===
This infobox is only inteded for usage on [[:Category:Arbeitsanweisungen|Arbeitsanweisungen]] pages. You have to supply AA and revision number as well as a date and editor name:
<pre>{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}</pre>
This creates a box loke this:
{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}
<div style="height:110px"></div>
Note that it is automatically right-aligned and text floats around it. It is intended to be used at the beginning of the page.

== Further reading ==
[https://en.wikipedia.org/wiki/Help:Template The Wikipedia help article on templates]

[[Category:IMT-Wiki]]

Tutorial: Templates

2017-11-02T16:34:52Z

Michael.Adams: search terms -> keywords

Template:Suchbegriffe

2017-11-02T16:33:32Z

Michael.Adams: Suchbegriffe -> keywords

{| class="wikitable" style="width:100%;" id="search-terms"
|-
!keywords
|-
|{{{1}}}
|}

Tutorial: Templates

2017-11-02T16:29:41Z

Michael.Adams: typo

Templates are a quick way to put a preformatted piece of wiki code into any wiki page. There are several templates available in this wiki and you can create your own if you want to. You can find a [[Special:MostLinkedTemplates|list of the most-used templates]].
== Example usage ==
This page describes how to use some of these templates.

=== Former employee ===
This is an infobox that you can put at the beginning of a user's page after they have left the institute.
It is one of the easier templates to use. You just enter <pre>{{Dead Box}}</pre> in the wiki code. Beware that template names are case-sensitive! The preview of this box looks like this:
{{Dead Box}}

''Side note: We are somewhat sorry for the name of this template. It was picked a while ago and it is now impractical to change it.''

=== Outdated device ===
For devices that no longer exist you can do the same as for emplyees:
<pre>{{Dead Device}}</pre>
This will create a box like this:
{{Dead Device}}

=== Search terms ===
You can add keywords or search terms (german: ''Suchbegriffe'') to any page. This facilitates finding the page with the search function. To add keywords that don't appear in the page's content but might prove useful, add a box at the end of your page like this:
<pre>{{suchbegriffe|keyword1, keyword2, ...}}</pre>
This will create a box like this:
{{suchbegriffe|keyword1, keyword2, ...}}

=== Infobox Arbeitsanweisung ===
This infobox is only inteded for usage on [[:Category:Arbeitsanweisungen|Arbeitsanweisungen]] pages. You have to supply AA and revision number as well as a date and editor name:
<pre>{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}</pre>
This creates a box loke this:
{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}
<div style="height:110px"></div>
Note that it is automatically right-aligned and text floats around it. It is intended to be used at the beginning of the page.

[[Category:IMT-Wiki]]

Tutorial: Templates

2017-11-02T16:29:07Z

Michael.Adams: Description on template usage

Templates are a quick way to put a preformatted piece of wiki code into any wiki page. There are several templates availabl in this wiki and you can create your own if you want to. You can find a [[Special:MostLinkedTemplates|list of the most-used templates]].
== Example usage ==
This page describes how to use some of these templates.

=== Former employee ===
This is an infobox that you can put at the beginning of a user's page after they have left the institute.
It is one of the easier templates to use. You just enter <pre>{{Dead Box}}</pre> in the wiki code. Beware that template names are case-sensitive! The preview of this box looks like this:
{{Dead Box}}

''Side note: We are somewhat sorry for the name of this template. It was picked a while ago and it is now impractical to change it.''

=== Outdated device ===
For devices that no longer exist you can do the same as for emplyees:
<pre>{{Dead Device}}</pre>
This will create a box like this:
{{Dead Device}}

=== Search terms ===
You can add keywords or search terms (german: ''Suchbegriffe'') to any page. This facilitates finding the page with the search function. To add keywords that don't appear in the page's content but might prove useful, add a box at the end of your page like this:
<pre>{{suchbegriffe|keyword1, keyword2, ...}}</pre>
This will create a box like this:
{{suchbegriffe|keyword1, keyword2, ...}}

=== Infobox Arbeitsanweisung ===
This infobox is only inteded for usage on [[:Category:Arbeitsanweisungen|Arbeitsanweisungen]] pages. You have to supply AA and revision number as well as a date and editor name:
<pre>{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}</pre>
This creates a box loke this:
{{Infobox AA|aa=123|revision=01|stand=02.11.2017|bearbeiter=Mustermensch}}
<div style="height:110px"></div>
Note that it is automatically right-aligned and text floats around it. It is intended to be used at the beginning of the page.

[[Category:IMT-Wiki]]

User:Sebastian.Ecken

2017-11-02T15:41:28Z

Michael.Adams: {{Dead Box}}

{{Dead Box}}

[[file:Sebastian_von_der_Ecken.jpg|500x250px|rechts|Sebastian von der Ecken]]

[[user:{{PAGENAME}}/English|English Version]]

== Sebastian von der Ecken ==


'''Funktionsbereich''': F&E2 BBM (BioMEMS, Biosensorik, '''Mikrofluidik''')

'''Aufgabengebiet''': Mikrofluidik, [[Digitale Mikrofluidik und Elektrobenetzung|Elektrobenetzung]] (electrowetting), digitale Mikrofluidik ([[Digitale Mikrofluidik und Elektrobenetzung|DMF]])

'''Bau''': 307

'''Raum''': 325 ('''NEU''')

'''Telefon''': 0721-608-23924 ('''NEU''')

'''e-mail''': mailto:sebastian.vonderecken@kit.edu



== Tätigkeitsbeschreibung ==
Ich arbeite mit einem Lab-on-Chip System auf Grundlage der der "Digitalen Mikrofluidik". Das bedeutet, dass ich Flüssigkeiten in Form von Tropfen mittels elektrischer Felder auf einem Mikrofluidik Chip direkt steuern kann (bewegen, splitten, mischen). Mit einem magnetischen Feld habe ich überdies die Möglichkeit, magnetische Partikel von einem in den anderen Tropfen zu bewegen.

Der Vorteil gegenüber "normaler" Mikrofluidik ist, dass keine Ventile, Pumpen oder Kanäle auf dem Chip benötigt werden.

== Fertigkeiten/Kenntnisse ==

=== Geräte ===
'''[[scobµ]] ''': Anlage zur Ansteuerung und Observation von [[Digitale Mikrofluidik und Elektrobenetzung|DMF]]-Chips (107.5)

VSI Weißlichtinterferrometer (107.5)

Spincoater (Der neue, links von der 4er Hotplate)

Dipcoater [[OWIS_Dipcoater|OWIS]] (Lab 107)

(AFM)

=== Prozesse ===
'''[[Digitale Mikrofluidik und Elektrobenetzung|DMF]]''': Entwurf, Auslegung, Konstruktion und Fertigung von DMF-Chips. (electrowetting)

'''Analyse''': Particle image velocimetry (PIV), particle tracking velocimetry (PTV) (Studienarbeits-Wissen)

=== Software ===
'''CAD''': [[AutoCAD|AutoCAD]], Solid Works, Solid Edge

'''Grafik''': Adobe Photoshop, Gimp, Open Office Draw (Vektorgrafik)

'''Text''': LaTeX

'''Zahlen''': MatLAB, Origin

'''Labor''': LabVIEW, Lavision DAVIS

'''Büro''': MS Office, Open Office

=== Materialien ===
[[:Category:Materialien_-_Materials|Materialien]]
{| class="wikitable sortable" style="background:#efefef; border:2px solid black"
! Name !! Was? !! Was genau? !! SP-Nummer !! class="unsortable" | Bemerkung
|-
| Orasol® Gelb 2GLN (Pulver)
| Chemiekalie
| Farbstoff
|style="text-align:right"| SP270190.00
| nicht wasserlöslicher Farbstoff, diffundiert nicht in Siliconöl, zur Einfärbung von polaren Flüssigkeiten in der Mikrofluidik
|-
| Orasol® Rot BL (Pulver)
| Chemiekalie
| Farbstoff
|style="text-align:right"| SP270190.00
| nicht wasserlöslicher Farbstoff, diffundiert nicht in Siliconöl, zur Einfärbung von polaren Flüssigkeiten in der Mikrofluidik
|-
| Orasol® Blau (Pulver)
| Chemiekalie
| Farbstoff
|style="text-align:right"| SP270190.00
| nicht wasserlöslicher Farbstoff, diffundiert nicht in Siliconöl, zur Einfärbung von polaren Flüssigkeiten in der Mikrofluidik
|-
| Indigotin blau (Pulver)
| Chemiekalie
| Farbstoff
|style="text-align:right"| SP270189.00
| wasserlöslicher Farbstoff, zur Einfärbung von nichtpolaren Flüssigkeiten und Wasser in der Mikrofluidik
|-
| Tween 20 (Polysorbat 20)
| Chemiekalie
| Tensid
|style="text-align:right"| SP270187.00
| nicht-ionisches Tensid
|-
| Pluronic L-64
| Chemiekalie
| Tensid
|style="text-align:right"| SP270203.00
| Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
|-
| Fluorinert FC-40
| Chemiekalie
| Lösemittel
|style="text-align:right"| SP270202.00
| Lösemittel für Dupont Teflon AF, zum Herstellen einer Teflonlösung zur Herstellung einer hydrophoben Beschichtung
|-
| DuPont Teflon AF 1600 (Pulver)
| Chemiekalie
| Beschichtung
|style="text-align:right"| SP270192.00
| Das Teflon AF muss zuvor in Lösung gebracht werden, z.B. in FC40 der Firma 3M.
|-
| Glas Wafer 4 Zoll x 1mm
| Werkstoff
| Wafer
|style="text-align:right"| SP260614.00
| Borofloat Wafer 4" 1000±20µm DSP Ra<1,2nm
|-
| Glassubstrat rechteckig mit ITO-Beschichtung
| Werkstoff
| Wafer
|style="text-align:right"| SP260585.00
| Glassubstrat 75x50x0,7 mm oder 75x50x1,1 mm oder 75x25x0,7mm, einseitig ITO beschichtet
|-
| Silikonöl
| Chemiekalie
| Silikone
|style="text-align:right"| SP270185.00
| Viskosität 10 und 0,65
|-
| Propylencarbonat
| Chemiekalie
| Puffer
|style="text-align:right"| SP270188.00
| nix bemerkenswertes
|-
| Epoxidharzklebstoff EPO-TEK H20E
| Chemiekalie
| Klebstoff
|style="text-align:right"| SP270008.01
| 2-Komponentenkleber, elektrisch leitfähig durch Silberpartikel, geeignet zur Kontaktierung von Kontaktpins und ITO
|-
| DELO Duopox AD-895
| Chemiekalie
| Klebstoff
|style="text-align:right"| SP270191.00
| Undurchsichtig, grau, glänzend nach Trocknung. 2K Epoxyklebstoff, elektrisch isolierend, Temperaturbereich -40-140°C, auf biokompatibilität geprüft nach ISO 10993-5 Test auf Cyotoxizität.
|-
| DuPont [[Teflon AF]] 1601 (18wt% Lösung)
| Chemiekalie
| Beschichtung
|style="text-align:right"| n.a.
| Teflon AF 1601 in FC-40 gelöst, kann bei Bedarf weiter verdünnt werden. '''Nicht mehr lieferbar'''. Ersatz: Teflon AF 1600. Reinraum Resistschrank.
|-
| DuPont Teflon AF 1600 ('''1wt%''' Lösung)
| Chemiekalie
| Beschichtung
|style="text-align:right"| n.a.
| Zum '''Spincoaten, Dipcoaten'''. Teflon AF 1600 in FC-40 gelöst. Reinraum Resistschrank.
|-
| DuPont Teflon AF 1600 ('''0,5wt%''' Lösung)
| Chemiekalie
| Beschichtung
|style="text-align:right"| n.a.
| Zum '''Spincoaten, Dipcoaten'''. Teflon AF 1600 in FC-40 gelöst. Reinraum Resistschrank.
|}

== [[Abkürzungen - Abbreviations|PVA]] für IMT-Projekte ==
* [[13-097]]

== Weitere Aufgaben am IMT ==





Inoffiziell beauftragter offizieller KICKER Verantwortlicher (bis 08.01.2016)

==Belohnungen für Wiki-Engagement==
[[file:Giraffemitstern.png|thumb|200x265px|rechts|Giraffe mit Sternchen für Wiki-Engagement im Mai 2015 ]]

Sebastian bekommt für sein Engagement im Wiki-Artikel schreiben für den Monat Mai 2015 eine Giraffe mit *.

Verliehen von den Wiki-Verantwortlichen. Unterschrift: [[user:Marcel.Gueltig|Marcel.Gueltig]] ([[Benutzer Diskussion:Marcel.Gueltig|Diskussion]]) 16:54, 2. Jun. 2015 (CEST)

[[Category:F&E2-BBM]]
[[Category:Ehemalige Mitarbeiter - Former Employees]]
[[Category:Ehemalige Doktoranden - Former PhD Students]]

Main Page

2017-11-02T15:37:11Z

Michael.Adams: Restructure page to make information easier to find

Sinton lifetime

2017-11-02T12:53:59Z

Michael.Adams: Remove Vu, add links

'''Device location''': F&E4-SOLAR LAB

'''Lab location''': Building 310 Room no. 203

'''Phone number''':

'''Lab leader''': [[User:Ulrich.Paetzold|Ulrich Paetzold]]

'''Principal users''': [[User:Ulrich.Paetzold|Ulrich Paetzold]], [[User:Wensheng.Yan|Wensheng Yan]]

'''Access''': Only trained and authorized users may use the instrument.

== '''Short Description''' ==

WCT-120 instruments showcase our unique measurement and analysis techniques, including the highly regarded Quasi-Steady-State Photoconductance (QSSPC) lifetime measurement method developed by Sinton Instruments in 1994. The QSSPC technique is ideal for monitoring multicrystalline wafers, dopant diffusions, and low-lifetime samples. This method complements the use of the transient photoconductance technique that is also standard on this instrument.The QSSPC lifetime measurement also yields the implied open-circuit voltage (versus illumination) curve, which is comparable to an I-V curve at each stage of a solar cell process.

'''WCT System Capabilities:'''

Primary application:

Step-by-step monitoring and optimization of a fabrication process.

Other applications:

* Monitoring initial material quality;
* Detecting heavy metals contamination during wafer processing;
* Evaluating surface passivation and emitter dopant diffusion;
* Evaluating process-induced shunting using the implied I-V measurement.

Some key features refer to the official webpage[[http://www.sintoninstruments.com/Sinton-Instruments-WCT-120.html]].

[[file:product-photo-WCT-120-main-WM-v2.jpg]]

== '''Start-up Procedure''' ==

'''Standard Operating Procedure:'''

'''Precautions:'''

1. Do NOT touch the filters or the filter tray which has glass diffuser glued into it, with bare hands. Use gloves or tissue paper for the same.

2. Make sure that the filter tray/flash mount assembly does NOT fall down while sliding it over the flash tower for adjusting height of the flash.

3. Ensure that the BNC cable and flash trigger connections are in place based on the measurement to be done i.e. to lifetime tester stage or Suns VOC stage.

4. Note down the height of the flash from the stage, the setting on the flash (1/1 or 1/64) and the filter being used during measurement. Different users tend to change this according to their requirements.

5. Make sure that the reference cell is NOT covered during the measurement.

6. Do NOT start the measurement on Lifetime tester until it is thermally stabilized i.e. Red LED is OFF.

7. During chemical passivation, ensure that solution does NOT spill on the stage.

8. For Suns VOC measurement, ensure that sample consists of P-N junction and both P N sides can be probed properly.

9. Ensure that proper action is taken for addressing error messages in the measurement:i.Saturated reference cell: Height of the flash is adjusted to change the intensity of light to avoid saturation of reference cell.ii.Min MCD < Specified MCD < Max MCD: Change the specified minority carrier density to fit in the measured range of minority carrier density.iii.Remove the sample on lifetime tester stage during zeroing of the instrument: No sample in the vicinity of stage during zeroing of the instrument.

10. Ensure that SUMMARY file is NOT cut pasted during the data transfer.
'''
A.Sinton WCT 120 Photo-conductance Lifetime tester'''

Introduction to the system:

The system is used for carrier lifetime measurement of samples after different processing steps during solar cell fabrication, as a step by step monitoring tool. The photo-conductance based contactless measurement technique makes use of RF sensor to measure sheet conductivity of the sample and light sensor to measure intensity of the flash to which sample is exposed. These measurements are then used to calculate the effective carrier lifetime of the samples.

'''Assembly of the Equipments:'''

1. The flash consisting of the bulb and reflector has already been installed in the filter tray /flash mount assembly.

2. The flash lamp controller trigger and the outputs of the instrument are connected to the computer through connector box.

'''Connections to the Equipments:'''

1. Insert the appropriate filter in the filter tray assembly, if required. IR pass filter is used for general usage and is already placed in the tray.

2. Connect the trigger cable to the side of the flash and other side of it into the connector box.

== '''Measurement''' ==

'''Preliminary measurements'''

1. Open lifetime analysis spreadsheet in excel.

2. Enter correct values for wafer parameters (sample name, width, resistivity, type, optical constant). For test sample (50ohmc,, 0.7optical constant)

3. Analysis parameters – Specified MCD, 5E14 Fit range, 30% light bias, 0 Area frac, 1:analysis type.

'''Calibrating the coil'''

1. Remove any silicon; ensure the sensor areas are open.

2. Click on “Calibrate Coil”.

3. Wait for the trace to be zero. And then click “done”.

'''Measuring the test sample (QSSP)'''

1. Place the wafer on the test sate making sure it fully covers EF region but not the hole for light sensor. LIFETIME MEASUREMNT ONLY FOR THE SECTION ABOVE THE RF COIL IS DONE.

2. Click on ‘Measure Wafer’ button.

3. Click on zoom to fill the graph and peak of each trace.

4. Excel automatically calculates the lifetime.

== '''Shutdown Procedure''' ==

1. Make sure you have saved all the data.

2. Switch OFF the instrument.

3. Turn OFF the software.

4. Turn OFF the computer.

[[Category:Geräte - Devices]]
[[Category:Prüfmittel - Measuring Equipment]]
[[Category:F&E4]]
[[Category:AOPV]]

AMOS-Streak Camera

2017-11-02T12:50:19Z

Michael.Adams: remove Vu

<div style="padding:20px;background:#FDA;">The purpose of these instructions is to give you a quick overview on how to work with the devices. You should still be familiar with the manual and receive a proper introduction from the lab leader or the principal users.</div>

[[file:Lab 054.jpg|500px|thumb|right|LASER Lab]]

'''Device location''': Optiklabor F&E4-3GP

'''Lab location:''' [http://www.kit.edu/campusplan/?id=310 Building 310 Basement Room no. 054]

'''Phone number:''' 24669

'''Lab leader:''' [[user:Ian.Howard | Ian Howard]]

'''Principal users:''' [[user:Andrey.Turshatov | Andrey Turshatov]], [[user:Dmitry.Busko | Dmitry Busko]], [[user:Michael.Adams | Michael Adams]], [[user:Michael.Oldenburg | Michael Oldenburg]], [[user:Nicolo.Baroni | Nicolo Baroni]], [[User:Guojun.Gao | Guojun Gao]], [[User:Marius.Jakoby | Marius Jakoby]]

'''Access:''' The setup is in a class IV laser lab. Only trained users with key may use the setup. The Lab is located in the basement of building 310. Open the door of the basement of B310, go straight ahead and open another door. The new LASER Lab can be found on your left side.

== Short Description ==
[[file:Synchroscan Unit.jpg|200px|thumb|left|Streak camera with Synchroscan Unit]]

[[file:Slow Single Sweep.jpg|200px|thumb|right|Streak camera with Slow Single Sweep Unit]]

The streak camera is a device to measure ultra-fast light phenomena and delivers intensity vs. time vs.
wavelength information. It can be used in two configurations:

'''Synchroscan (< 5 ns)'''

In this configuration, the streak camera is synchronized with the LASER pulses. i.e., the capacitor in the streak camera charges and discharges in the LASER frequency. This is particularly useful for fast decays. For using this configuration the streak camera set-up has to be loaded with the synchroscan unit M10911. An additional delay unit can be used with the synchroscan to account for the delay between the generation and reception of a LASER pulse and for accurately finding the zero point in time from which decay starts.

'''Slow Single Sweep'''( upto 1 ms )

In this configuration, the streak camera is synchronized with the output of a pulse picker which will either divide the LASER pulse frequency by a factor or work in gated mode using the signal generated by an external function generator. For using this configuration, the streak camera set-up has to be loaded with the slow single sweep unit M10913.(See image on right). This is particularly useful for long lived species(> 100 microseconds) with weak intensity of emission. The streak camera then gives the signal accumulated over time.

[[File:Streak_spectral_response.jpg|300px|thumb|right|Spectral response of the streak tube. Our unit is the IR-enhanced S-1.]]

The official designation of our streak camera is '''Hamamatsu Universal streak camera C10910-02'''.

== Start-up Procedure==

===Mounting the Sample===
[[file:Sampleholder streakcamera.jpg|200px|thumb|right|Sample Holder]]

# Choose the required type of sample holder
# Fix the sample holder in the marked position on the optical table
# Carefully place the sample in the sample holder.
# Make sure that the sample is facing the right direction so that it will be incident by the LASER beam and the emission from the sample will reach the entrance slit of the streak camera.
# Horizontal and vertical adjustments can be made using the stage on which the chamber is mounted.
# If vacuum is required, close the holder with the aid of rubber bushes and clamps such that it is air tight and turn ON the vacuum pump by following the procedure below.

===Turning ON the vacuum pump===

# Connect the inlet tube of the vacuum pump to the sample holder
# Make sure that all joints are tightly closed.
# Ensure that the ventilation valve is closed. It can be found on the backside of the pump. See image.
# Press the green switch and wait for the pump to finish initialization, then press the power button
# The display can be changed to different pages by pressing the right/left arrow keys on the pump
# Pressure is displayed on Page 340 and the Speed in displayed in terms of rotational frequency in page 309
# Wait till sufficient vacuum is generated, normally 10^-5 hPa pressure
# If sufficient vacuum is not building up, try moving the ballast valve downwards to remove any residues. It can be seen from the right side of the pump. See image.
# If the sample has to be taken out of the chamber, for inspecting or for changing the direction, then first the vacuum has to broken.
# For this press the power button. Wait till the speed is below 100Hz. Then open the ventilation valve for faster shut down of the vacuum.
# Now, the chamber can be opened and the sample can be taken out for making the necessary changes.
# Repeat the procedure for starting the vacuum after tightly securing all joints.


<gallery caption="Vacuum Pump Gallery" widths="250px">
file:Vacuum pump.jpg|Vacuum Pump Pfeiffer HiCube 80 Eco for generating vacuum upto 10^-5 hPa
file:BallastValve vacuumPump.jpg|Ballast valve for cleaning out the residues in the Vacuum pump
file:VentilationValve VacuumPump.jpg|Ventilation Valve for the Vacuum Pump
</gallery>

=== Turning the LASER ON ===

# Turn ON the touch screen display for controlling the output of the CHAMELEON COMPACT OPO-VIS System with Idler(if it is not already ON). A mouse is also provided for convenience. Open the software for the OPO Compact system.
# It has options for different types of output. The direct LASER output, its SHG, the OPO output and its SHG
# Ensure that the shutter is closed and the cooling units for the LASER are switched ON.
# Make sure that the LASER will not go beyond or create unnecessary reflections outside the operating plane of the optical table.
# Roughly plan the path to be followed on the optical table and place mirrors, lenses and irises accordingly.
# Set the required wavelength for the Ti:Sa LASER.
# Turn the LASER key to ON position, and wait till the LASER ramps up enough power. Ideally at 800nm the power should be 4.3W.
# To start LASER emission, press the shutter button. (A yellow LED beneath the button indicates that the shutter is open)
# For alignment purposes, use reduced power, so pump the OPO by clicking on the controller. Generally for the streak camera reduced power after pumping the OPO will be sufficient. If the emission is too weak, one can stop pumping the OPO by clicking again on the controller.
# If a wavelength other than the set wavelength or its second harmonic is required, you can use the OPO for selecting the required wavelength. This can be done by clicking on the plot in the touch screen display and then entering the required wavelength on the pop-up window. Then wait for the OPO to tune to that frequency.
# Make sure to wear proper eye protection.
# To get the LASER output, click on the type of output required.
# To start the emission click Ti:Sa out or if the OPO is used to obtain a different wavelength, click opo out.
# Check the emitted light with the help of an appropriate detector card


<gallery caption="LASER gallery" widths="250px">
file:TiSa OPO Assembly.jpg|Ti:Sa LASER and OPO-VUS system with Idler
file:Tablet for LASER-OPO Assembly.jpg|Touch screen control for LASER system
file:LASER control.jpg|Main Control Panel for the LASER
file:Front view of Chameleon Compact OPO-VIS.jpg|Front View of Chameleon compact OPO-VIS system with Idler
</gallery>

==== Delivering beam to the sample-synchroscan mode====
# The LASER beam is to be directly taken to the sample from the output of the OPO-VIS in synchroscan mode
# Check how it is set currently. If the LASER beam is set in a way that it passes through the pulse picker, it has to be changed for synchroscan mode. Follow the steps below.
# Put a mirror at the output of the OPO-VIS, in front of the selected output, so that the beam will be rotated by 90 degrees.
# Rotate the beam by 90 degrees again, so that it falls on another mirror which will rotate it again by 90 degrees and make it pass through the pair of irises fixed on the table.
# There will be mirrors already fixed to the table to increase the height of the beam and another mirror which will reflect the beam onto the sample.
# For proper alignment, make sure that the beam passes through the irises.
# Fine tuning can be done using two pairs of irises and mirrors.
## Select the pairs such that an iris and a mirror farther from it, but earlier in the beam path form the pair.
## Focus on one pair at a time.
## Slightly adjust the mirror vertically or horizontally to make the beam pass through the centre of the iris.
## Make sure it passes through the centre by closing the iris.
## Repeat the same procedure for the other pair
## Continue the same procedure on the pairs alternatively, till the beam passes through the centre of both irises.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.

==== Delivering beam to sample through pulse picker ====
[[File:Delay Generator.jpg|150px|thumb|right|Delay Generator]]
[[File:FnGen Pulsepicker contoller.jpg|150px|thumb|right|Function generator for external triggering in gated mode (long delay) and the Pulse Picker Control system ]]
[[File:Pulsepickercontroller shortdelaymode.jpg|150px|thumb|right|Pulse picker controller in short delay mode]]
# Check how the beam path is set.
# If it is not set in the way that the required output passes through the pulse picker, the current setup has to be changed.
# Using two mirrors rotate the beam path such that it enters the pulse picker.
# There are two possible configurations-long delay(gated mode) and short delay
# In case long delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Set the required frequency on the external function generator
## Connect the AUX OUT port of the function generator to the EXT. TRIGGER of the pulse picker controller.
## Connect the MAIN OUT 50 ohm port of the function generator to the input port of the delay generator.
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the function generator, pulse picker controller and delay generator
## Set the trigger mode to "gate"
# If short delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Connect PULSE MONITOR output of the pulse picker controller to the input port of the delay generator
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the delay generator and pulse picker controller
## Set the Division Ratio - the factor by which you want the LASER frequency to be divided
## Set the trigger mode to "internal"
# Press the button to turn ON the RF mode on the pulse picker controller
# You will see two spots in ON mode. A bright one corresponding to the 2nd order of diffraction of the crystal inside the pulse picker and and a less intense one corresponding to the first order of diffraction.
# The beam causing the dim spot should be blocked using one of the irises, so that it doesn't reach the sample.
# Check if there is sufficient contrast between ON and OFF modes of RF using a detector card.
# If not, contact an authorized user for help to adjust the pulse picker.
# Using three mirrors, rotate and align the beam path such that it enters the irises already fixed on the table.
# Fine tune the alignment by following the steps given in the previous section.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.
# A long pass filer is put before the side slit of the streak camera to block out the incident light. Ensure that it is of the correct wavelength.

=== Setting up the Streak Camera ===
[[File:CoolingSystem streakcamera.jpg|100px|thumb|right|Cooling System for Streak Camera]]
[[File:Micrometer for streak camera slit.jpg|100px|thumb|right|Micrometer to control the slit-opening of the streak camera]]
[[File:Power suppplies.jpg|150px|thumb|right|Power Supply Units]]
# Ensure there is enough water in the chiller.
# To turn on the chiller, first press the black switches on both units. This already starts the cooling of the bath. The display on the top unit shows first a temperature and after few seconds, OFF is displayed.
# Give a long press on the OK button (below the display and to the right of the up and down arrows) and the display will show the coolant temperature. This starts the circulation pump and the heater. See image.
# Make sure that the slit before the streak camera is set to zero (fully closed). See image.
# Switch on the computer.
# There are two possible modes. Make the connections according to the mode required.

==== Synchroscan Mode ====
* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the synchroscan unit M10911, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the synchroscan unit M10911 into the streak camera and lock it by turning the black knob
* Connect the SYNC IN and REF OUT cables to the unit. These cables come from the synchroscan delay unit kept on the rack above and are labelled.
* Connect the output of the syncing device controller to the synchroscan delay unit.
* Turn ON the power supplies for the streak camera, monochromator, delay unit for synchroscan, and the power supply for the syncing device which is used to detect the LASER frequency.
* Turn ON the camera by moving the ON/OFF slider

==== Slow Single Sweep Mode ====

* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the slow single sweep unit M10913, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the slow single sweep unit unit M10913 into the streak camera and lock it by turning the black knob
* Connect the output (AB) of the external delay generator to the TRIG IN port of the slow single sweep unit
* Turn ON the power supplies for the streak camera and the monochromator
* Turn ON the camera by moving the ON/OFF slider

== Measurement ==
[[File:Streakcamera focus mode.png|300px|thumb|right|Streak Camera Software HPDTA - showing streak camera in focus mode]]

# Turn on the software HPDTA on the computer by Hamamatsu.
# In the software, open live video and click auto-scale (star button at the bottom right of the LUT control window). A green streak will be visible at the center, this is because the cooling is not yet turned on in the software.
# Turn Cooling ON in the streak camera control palette on the left and you can see the streak vanishing.
# Make sure that the proper filter is mounted just beore the side slit of the streak camera
# Set the central wavelength in the monochromator control palette
# Select the required grating( 200g/mm, 100g/mm and 50g/mm) in the monochromator control palette. Choose 50g/mm if you want a large range and choose 200g/mm if you want a greater resolution
# Also set the required timescale in the streak camera palette
# Turn OFF the lights in the lab as the streak camera measurements are sensitive
# By default, the camera will be in Focus mode, if it is not change the Mode to Focus
# Open the photocathode opening slowly upto 20mm. If necessary go upto 40, but never more than that.
# Open the shutter by clicking on the respective button in the software
# Start increasing the gain from 0 to see the emission on the streak camera. Do not let the gain exceed 20 in focus mode
# Adjust the mirror reflecting light on the sample vertically and horizontally to get maximum signal with minimum gain
# The sample position can also be adjusted, if it aids in bringing in more emitted light to the streak camera
# Also the width of the side slit of the streak camera ( max 3000mm) can be adjusted to gather more emitted light
# Set the appropriate timescale and gain in the control palette.
# In the software control palette, change the Streak Camera Mode from 'Focus' to 'Operate'. Click auto-scale in the live video window.
# Find zero time by adjusting the delay in the delay generator control palette
# Adjust the timescale,delay, gain and photocathode opening for the optimal measurement.
# Freeze the live video
# Select Analog integration tab in the same window and set integration time and number of exposures and get the result of the integration
# Save the data.
# In case the detected light is very weak, you will have to use photon counting mode. For this select photon counting tab instead of analog integration.
# Select a rectangle as the ROI in the brightest part of the spectrum for checking whether the measurement will be accurate.
# The percentage of hits should be less than 5%.

== Shutdown Procedure ==

# Make sure you have saved all the data required.
# Close the photocathode opening.
# Close the shutter of the streak camera using the software
# Turn OFF the output of the CHAMELEON COMPACT OPO-VIS using the tablet.
# Turn OFF the software and the streak camera.
# Turn ON the lights
# Press the shutter button of the LASER to close the shutter.
# Turn Ti:Sa LASER key to Standby
# Turn OFF the delay generator, function generator and pulse picker(if used)
# Turn OFF the computer.
# Wait for 20 minutes to turn off the chiller. Press OK key first (turns off pump and heater), then the black switches (turns off cooling). If you only turn off the pump you'll completely freeze the bath water, which takes around three days to melt unassisted.

== Manuals ==
As it is good practice to make yourself familiar with the manual first, the streak camera and the software manual are located in a drawer of the lab. PDF versions can be accessed under ''J:\FuE4-N4E\Manuals\Machines\Optics Lab 054''.

== See also ==
* [https://www.hamamatsu.com/us/en/product/category/5001/5011/5048/U13313-01/index.html HPD-TA Software overview]
* [https://www.hamamatsu.com/us/en/product/category/5001/5011/5041/C10910-02/index.html Overview of the streak camera on the Hamamatsu website]

[[Category:Geräte - Devices]]
[[Category:Prüfmittel - Measuring Equipment]]
[[Category:F&E4]]
[[Category:AMOS]]

Rasterelektronenmikroskop JSM-6600

2017-10-27T15:00:03Z

Michael.Adams: Remove content, add inactivity notice

{{Dead Device}}

Available alternatives:
* Cleanroom-SEM [[Rasterelektronenmikroskop SUPRA 60 VP]]
* Rasterkraftmikroskopie (AFM)

Template:Dead Device

2017-10-27T14:56:53Z

Michael.Adams: Created page with "<blockquote style="padding:10px; border: none; background:#ffccbb;"> {| border = 0, width="100%" ! width="10%" | 50px|..."

<blockquote style="padding:10px; border: none; background:#ffccbb;">
{| border = 0, width="100%"
! width="10%" | [[file:exclamation-mark-red-md.png|Ausrufezeichen|mini|50px|]]
! width="90%" | Bitte beachten: Dieses Gerät ist nicht mehr am IMT verfügbar. This device is no longer available at IMT.
|}
</blockquote>

Template:Dead Box

2017-10-27T14:55:49Z

Michael.Adams: remove superfluous article

<blockquote style="padding:10px; border: none; background:#ffccbb;">
{| border = 0, width="100%"
! width="10%" | [[file:exclamation-mark-red-md.png|Ausrufezeichen|mini|50px|]]
! width="90%" | Bitte beachten: Dieser Benutzer ist nicht mehr am IMT angestellt. This user no longer works at IMT.
|}
</blockquote>

User:Franziska.Lambrecht

2017-10-27T14:48:35Z

Michael.Adams: deadbox

{{Dead Box}}

[[file:franzsika_lambrecht.jpg|thumb|500x250px|rechts|Franziska Lambrecht]]

[[user:{{PAGENAME}}/English|English Version]]

== Franziska Lambrecht ==


'''Funktionsbereich''': F&E1-SMD

'''Aufgabengebiet''': Durchstimmbare Nanoschalter durch reversible Phasenumwandlung

'''Gebäude / Raum''': 301 / 402

'''Telefon''': 0721-608-22759

'''e-mail''': franziska.lambrecht@kit.edu

'''Stellvertreter''': [[User:Randy.Fechner| Randy Fechner]]

== Tätigkeitsbeschreibung ==
Herstellung und Untersuchung freistehender Teststrukturen mit Nanometerabmessungen um das Skalierungsverhalten physikalischer Kenngrößen bei abnehmender Baugröße zu untersuchen.

== Fertigkeiten/Kenntnisse ==

=== Geräte ===
* [[RIE/RIBE_Oxford_PlasmaLab_100 | RIE/RIBE Oxford PlasmaLab 100]]
* [[4-TEC Plasmaätzer]]
* Nanomanipulator-Setup von Kleindiek
* [[Rasterelektronenmikroskop SUPRA 60 VP]]
*[[CryoVac]]
*[[4W-CryoVac]]

=== Prozesse ===

=== Software ===

=== Materialien ===
bi-NiTi, NiTi(Cu), NiMnGa

== [[Abkürzungen - Abbreviations|PVA]] für IMT-Projekte ==
* [[13-112]]

== Weitere Aufgaben am IMT ==





[[Category:Mitarbeiter - Employees]]
[[Category:F&E1-SMD]]
[[Category:Doktoranden - PhD Students]]

Cary Eclipse fluorescence spectrometer

2017-09-15T10:58:14Z

Michael.Adams: Add categories, improve list formatting

[[file:Cary Eclipse.jpg|250px|thumb|right|Cary Eclipse]]

'''Device name:''' Cary Eclipse fluorescence spectrometer

'''Device responsible:''' [[User:Nicolo.Baroni|Nicolò Baroni]]

'''Room:''' R203

'''Wavelength range Excitation:''' 190 - 1100 nm

'''Wavelength range Emission:''' 190 - 1100 nm

'''Dimensions (W x D x H):''' 560 mm x 560 mm x 250 mm

==Getting started-Scan==

# Turn on the device and turn on the computer; don’t start the software immediately.
# Open the folder on desktop "Cary Eclipse" and choose the task "Scan".
# Go to scan set-up to put the desired setting (see below).
# Press Ok and then press the start button to start the measurement.

==Scanning Set-Up==

[[File:CE2.PNG|415x524px]]

'''I'''
Three modes of operation are offered: fluorescence, phosphorescence and bio-/chemi-luminescence.

'''II'''
Select the measurement to perform: excitation, emission and synchronous (scans with a constant wavelength or wavenumber difference between monochromators to resolve multi-component mixtures).

'''III'''
Select to scan in wavelength, wavenumber, angstroms or electron volts.

'''IV'''
Set excitation and starting and ending wavelengths.

'''V'''
Precise control over how much signal averaging is done and how frequently data points are collected.

[[File:CE1.PNG|415x524px]]

'''I'''
Set excitation and emission filter.

'''II'''
Set the voltage of the PMT detector to have a better resolution of the low intensity signals.

[[Category:Geräte_-_Devices]]
[[Category:F&E4]]

Solar Simulator

2017-09-15T10:55:42Z

Michael.Adams: Remove redundant mention of tool responsibles, make names into links, clean up list formatting

[[file:SolarSimulator.jpg|250px|thumb|right|Solar Simulator]]

'''Device:''' Sun Simulator Setup

'''Specifications:''' Solar Simulator: WXS-90S-L2 by WACOM, Saitama, Japan / IV-Setup and Software: Sun Simulator SUS V2.0 / Oerlikon

'''Tool Responsibles:''' [[User:Malte.Langenhorst|Malte Langenhorst]], [[User:Ulrich.Paetzold|Ulrich Paetzold]], [[User:Efthymios.Klampaftis|Efthymios Klampaftis]]

'''Location:''' Solar Lab (R203, B301) at the Institute of Microstructure Technology

== Short Description ==
The solar simulator provides illumination approximating natural sunlight. It is a controllable indoor test facility to determine the power conversion efficiency and material stability under standardized conditions mimicking the international solar irradiation standard AM1.5G. It is a commercial solar simulator certified to highest accuracy class named AAA (WXS-90S-L2 by WACOM, Saitama, Japan). The illumination is homogeneous up to areas of 4”, enabling to perform tests on single solar cells as well as thin-film solar modules up to these dimensions. The tool is most in our lab for the testing of solar cells, solar harvesting devices and luminescent materials.

== Manual ==

The solar simulator is certified to highest accuracy class named AAA (see also [[File:Spectrum.pdf]])

== Important Rules ==

# After switching of the lamps you need to keep the cooling fan running for at least 20 min! Otherwise you will damage the lamps.
# Lamps can only be exchanged by tool responsibles! Do not touch the optics or inner parts of the solar simulator!
# Be aware that the lamps operate at high voltages!
# Always wear personal protection equipment (1) safety goggles (2) clothing w. long sleves (3) gloves

== Manual ==

Manual is stored in the labeled cupboard of the Solar Lab 203.

== How to Start the System ==

Short description on how to start and ingnitiate correctly the lamps: [[File:Startup.pdf]]

[[Category:Geräte - Devices]]
[[Category:F&E4]]

Solar Simulator

2017-09-15T10:52:08Z

Michael.Adams: /* How to Start the System */ change to correct file ending

[[file:SolarSimulator.jpg|250px|thumb|right|Solar Simulator]]

'''Device:''' Sun Simulator Setup

'''Specifications:''' Solar Simulator: WXS-90S-L2 by WACOM, Saitama, Japan / IV-Setup and Software: Sun Simulator SUS V2.0 / Oerlikon

'''Tool Responsibles:''' Malte Langenhorst, Ulrich Paetzold, Efthymios Klampaftis

'''Location:''' Solar Lab (R203, B301) at the Institute of Microstructure Technology

== Short Description ==
The solar simulator provides illumination approximating natural sunlight. It is a controllable indoor test facility to determine the power conversion efficiency and material stability under standardized conditions mimicking the international solar irradiation standard AM1.5G. It is a commercial solar simulator certified to highest accuracy class named AAA (WXS-90S-L2 by WACOM, Saitama, Japan). The illumination is homogeneous up to areas of 4”, enabling to perform tests on single solar cells as well as thin-film solar modules up to these dimensions. The tool is most in our lab for the testing of solar cells, solar harvesting devices and luminescent materials.

== Manual ==

The solar simulator is certified to highest accuracy class named AAA (see also [[File:Spectrum.pdf]])

== Important Rules ==

a. After switching of the lamps you need to keep the cooling fan running for at least 20 min! Otherwise you will damage the lamps.

b. Lamps can only be exchanged by tool responsibles! Do not touch the optics or inner parts of the solar simulator!

c. Be aware that the lamps operate at high voltages!

d. Always wear personal protection equipment (1) safety goggles (2) clothing w. long sleves (3) gloves

== Manual ==

Manual is stored in the labeled cupboard of the Solar Lab 203.

== How to Start the System ==

Short description on how to start and ingnitiate correctly the lamps: [[File:Startup.pdf]]

== Tool Responsibles ==

[[User:Malte.Langenhorst|Malte Langenhorst]]
[[User:Ulrich.Paetzold|Ulrich Paetzold]]
[[User:Efthymios.Klampaftis|Efthymios Klampaftis]]

[[Category:Geräte - Devices]]
[[Category:F&E4]]

User:Ella.Mareis

2017-08-07T13:56:49Z

Michael.Adams: Remove from F&E4 category

{{Dead Box}}

[[file:Photo_Ella_J_Mareis.jpg|thumb|500x250px|rechts|So sieht sie aus.]]

[[User:{{PAGENAME}}/English|English Version]]

== Ella Mareis ==


'''Funktionsbereich''': F&E4

'''Aufgabengebiet''': Nanophotonische Materialien

'''Bau''': 307

'''Raum''': 224

'''Telefon''': 0721-608-22747

'''e-mail''': mailto:ella.mareis@kit.edu

== Tätigkeitsbeschreibung ==

== Fertigkeiten/Kenntnisse ==

=== Geräte ===
Streak camera

[[Dimension Icon Rasterkraftmikroskop|AFM]]

=== Prozesse ===

=== Software ===

=== Materialien ===

== Weitere Aufgaben am IMT ==

Wiki-Mensch

Laserschutz-Sub-Beauftragte für [[:Category:F&E4|F&E4]]




[[Category:Ehemalige Mitarbeiter - Former Employees]]
[[Category:Ehemalige Doktoranden - Former PhD Students]]

User:Vu.Le

2017-08-07T13:55:26Z

Michael.Adams: This user no longer works at the IMT.

{{Dead Box}}

VU HONG LE
Karlsruhe Institute of Technology (KIT)
IMT: Institute of Microstructure Technology (Bldg 301, room 204)
Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
Tel: +49 (0) 721-608-'''22752'''
Website: https://www.imt.kit.edu/index.php

Perkin Elmer Lambda 950

2017-08-07T13:52:45Z

Michael.Adams: Add F&E4 category

[[file:perkinelmer.jpg|250px|thumb|right|PerkinElmer]]

'''Device name:''' PerkinElmer - UV/VIS spektrometer

'''Model:''' LAMBDA 950

'''Device responsibles:''' [[User:Stephan.Dottermusch|Stephan Dottermusch]], [[User:Raphael.Schmager|Raphael Schmager]]

'''Room:''' R203

'''Wavelength range:''' 175 - 3300 nm

'''UV/Vis resolution:''' ≤ 0.05 nm

'''NIR resolution:''' ≤ 0.20 nm

'''Dimensions (W x D x H):''' 1020 mm x 630 mm x 300 mm

== Short description ==
The LAMBDA 950 is a spectrometer for measuring the reflection, absorption und transmission of diffrenct samples in a wavelength range from 170nm bis 3300nm.
A build-in InGaAs integrating sphere enables measurement of diffuse scattered light.

==Important rules==

a. When turning off the device wait for at least 10 minutes before turning it on again. Otherwise you will damage the lamps.

b. Always turn off the lamps if the device is not used for a while. If not used for a longer period, turn the device off completely! If someone has an appointment shortly after you – please coordinate.

==Getting started==

a. Turn on the device and turn on the computer; don’t start the software immediately.

b. Wait a few minutes before starting the software. Otherwise you might encounter problems during your measurement as the device could not properly set itself up.

c. A useful tool for setup is “manual control”. Here you can apply different settings for observing the changes in beam size, detector signal, make quick measurement at a single wavelength, etc.

Go to “Instruments”, click on “LAM950”, and select “Manual Control”.

d. Measurements are usually performed with “Scan”.

e. Always check the complete beam path. Are there obstacles? A lens? An iris? Is the reflection standard at the end installed?

==Scanning==

[[File:950 datacollection.JPG|720x600px]]

'''I'''
D2 lamped used for UV measurement from ~190 nm to ~320 nm. Wavelength as low as 175 nm are possible if purging the system with nitrogen. The tungsten lamp is used for measurements from 320 nm to 3300 nm. Default for the lamp change is 319.2 nm. Values between 300 nm and 350 nm can be used if plausible for your measurement. Higher or lower values can damage the system.

'''II'''
Two different monochromators are installed - intended for use with the different detectors. The switch in monochromator and detector should occur at the same wavelength (default: 860.8 nm). Values outside the range 700 nm to 900 nm can damage the system. Ideally the switch should occur where the sensitivity of the two detectors is nearly the same.

'''III'''
The slit width defines the spectral width of the used spectrum. Due to the difference in monochromators similar beam shapes are achieved if the InGaAs slit width is 4 times the PMT slit width (PMT 2 nm -> InGaAs 8 nm).
Servo control is available for InGaAs detection. The slit width will then vary to keep the detection rate constant. The lower the detector sensitivity (or lamp output) the larger the slit width. Control of the slit width is possible via the Gain.

'''IV'''
The gain is an electrical gain at the detector. Gain should be high enough for a signal to be detected and low enough not to cause saturation of the detector. Use “manual control” and the energy mode E1 and E2 to monitor the effect of different gains at different wavelengths. Saturation occurs for E1 or E2 > 100. The gain should be chosen such that the highest achieved value in the measurement range is ≈80 for E1 and E2

'''V'''
The response is the integration time at every wavelength. The higher the response the longer the measurement will take, but a higher signal to noise ratio is achieved. One chopper cycle is 0.04 s.

'''VI'''
The common beam mask (CBM) reduces the beam height, but also drastically reduces the beam intensity. For significant effects values below 50% are necessary. The change in beam size is most effective in the sample compartment and at the reflection port of the integration sphere. Almost no effect can be observed at other positions.

'''VII'''
Of the three components shown here only the attenuators are installed in our system. The beam is polarized (!) and the polarization cannot be controlled in the system directly. Here is a graph of the beam polarization.
1: totally “TE” polarized; 0: unpolarized light; -1: totally “TM” polarized.

[[File:950 pol.JPG|520x400px]]

==Operation Modes==

'''%T'''
Most straightforward mode of operation. The system first takes a reference spectrum (I0) and then your measurement spectrum (I). The output is I/I0 in percent.

'''%R'''
Output identical to %T. But the use of “corrections” is possible. Corrections are never necessary if your sample is positioned in front of the integrating sphere (measuring transmission). They might be important if your sample is positioned inside (measuring absorption) or at the back port of the sphere (measuring reflection).

Especially when measuring reflection slight offsets can occur. Examples:

1. The cover lid on the reflection port is black, but not a perfect absorber. Light will partially be reflected and travel back through your sample into the integrating sphere. This is important when measuring the reflection of highly transmitting samples. It will lead to a constant offset of ≈1%. Taking the 0% “blocked beam” baseline (not using the internal attenuators) without the reflection standard is necessary for high precision measurements.

2. If your sample is a great reflector it might be an even better reflector than the white spectralon (R ≈99% in the visible). In this case I > I0 you will therefore measure R > 100 %. You will need to active “Reflectance corrected for reference (%RC)” and select an appropriate “Light Spectral Reference”.

'''A'''
Same data as in %T is taken. But the output is A = - log10(I/I0).

'''E1 / E2'''
Energy output of the detector (Sample beam (E1) / reference beam (E2)). The values have no physical meaning. The data is a combination of the light intensity at a given wavelength, the detector sensitivity at that wavelength and the detector gain. No reference is applied to the data. Looking at these values can make sense for determining errors. Lower values mean little signal. A red exclamation mark means the detector is saturated.

==More useful information==

'''High absorbing samples'''

The system is equipped with a chopper for lock-in amplification. Additionally this chopper makes a continuous switching between the reference beam and the sample beam possible (Cycle time 0.04s), so they are never “on” at the same time. Problems occur if one of the beams is much stronger than the other. This is the case if a highly absorbing sample (A > 4) is placed in the sample beam.
To prevent unwanted effects the refrence beam needs to be attenuated using the internal attanuators. A 0% blocked beam reference (using the internal attenuators) should also be taken for high precision measurements (''corrections'').

'''Small area and inhomogenious samples'''

For small areas and inhomogenious samples precise measurements can only be taken if the beam shape is kept constant. This is especially important at the detector switch. Intensity should not be too low and the “multible of 4 rule” (see section C.III) should be maintained. Blends and lenes, available in a dawer underneath the PerkinElmer, can be used for reducing the beam size. Blends can be most easiliy be placed in the sample compartment. Lenses are only effecful is placed directly infront of the integrating sphere.

== Technische Doku ==
[https://shop.perkinelmer.com/Content/RelatedMaterials/SpecificationSheets/SPC_LAMBDA950850.pdf Technische Doku]

== Eingewiesene Nutzer ==
[[User:Stephan.Dottermusch|Stephan Dottermusch]]

[[User:Raphael.Schmager|Raphael Schmager]]

[[Category:Geräte - Devices]]
[[Category:F&E4]]

AMOS-Tralala

2017-08-07T13:51:54Z

Michael.Adams: remove Vu

<div style="padding:20px;background:#FDA;">The purpose of these instructions is to give you a quick overview on how to work with the devices. You should still be familiar with the manual and receive a proper introduction from the lab leader or the principal users.</div>

'''Lab name''': Tralala ('''Tr'''ansient '''A'''bsorption '''La'''ser '''La'''boratory) aka Fastlab

'''Lab location:''' [http://www.kit.edu/campusplan/?id=341 Building 341 (ITG)], room 110

'''Phone number:''' 29163

'''Lab leader:''' [[User:Ian.Howard | Ian Howard]]

'''Principal users:''' [[User:Michael.Adams | Michael Adams]], [[User:Marius.Jakoby | Marius Jakoby]]

'''Access:''' The building belongs to the [http://itg.kit.edu Institute of Toxicology and Genetics (ITG)], the door is secured with a card reader. To get access to the building with your KIT card you have to bring it to the ITG secretary ([http://www.itg.kit.edu/52_431.php Selma Huber], B316 / R130). Additionally, you need a written statement (E-Mail) from the lab leader.

== Optical table ==
The optical tables rest on vibration isolation feet (Newport PL-2000; even at Newport there seems to be no manual for the PL-2000, their service recommends to use the I-2000 manual). The isolators are passive, that means they have no direct connection to a pressurized air line. Instead, they have to be re-pressurized manually every once in a while. There is a foot pump available for this purpose. The typical air pressure according to the manual is 10 - 85psi (0.7 - 6.0 kg/cm²).

== Cooling ==

[[File:Tralala Cooling.png|thumb|right|Diagram of the cooling circuit]]

There are two chillers in the lab. One is located inside the rack (PolyScience Recirculator) and cools exclusively the Empower Pump Laser. The temperature setpoint is at 18°C.

The second chiller (ThermoFischer Merlin M25) is outside the rack. The cooling water (deionized water) goes through the Millenia, Tsunami and finally the Spitfire, where it cools the High-Voltage unit and the removes heat from the Peltier-cooled crystal. Most heat is generated at the crystal when the Empower output is turned on. The chiller's setpoint is at 17°C, the pressure should be below 40psi. Insufficient cooling will lead to the Millenia/Tsunami output becoming unstable.

The water levels in the chillers should be checked periodically (e.g. once a month). Using not enough water could impact the laser stability and could damage the chiller. The ThermoFischer chiller requires deionized water. If the canister in the lab is empty it can be refilled directly at the ITG in room 105 (from a canister next to the sink) or in room 143 (there's a Millipore Synergy Water Purification System).

== Spitfire Laser System ==
[[file:Tralala_rack.jpg|thumb|right|upright=1.5|Rack-mounted controls for the Spitfire Laser system]]
The SpectraPhysics Spitfire system is a regenerative amplifier that amplifies optical femtosecond pulses emitted by a mode-locked Ti:sapphire laser (SpectraPhysics Tsunami). A high power diode-pumped laser (SpectraPhysics Empower) is used as a pump for the Spitfire amplifier.

The Spitfire outputs femtosecond laser pulses with a center wavelength of 800nm and a repetition rate of 1kHz (can be divided). The output power is around 3.6W.
=== Startup procedure ===
The controls for the Spitfire system are located inside a temperature-controlled rack.
# The Empower, Tsunami and TCU (Temperature Control Unit) power supply should already be on. If not, turn them on
# Turn on the TDG (Time and Delay Generator) power supply
# Use they keyswitches to activate the Empower, Tsunami and TDG
# Press ''Laser Power'' on the small black Tsunami control box and wait for the diodes to warm up
# While you wait, turn on the cooling fan next to the Tsunami (helps with stability) and switch the laser warning lamp outside the lab on
# Once the diodes are ready, turn on the Tsunami by long-pressing the ''Laser Power'' button and wait for the output power to reach the set value (3.30W).
# Open the OceanOptics SpectraSuite spectrometer software on the PC
# Open the Spitfire software on the PC
# Remove the beam tube at the Tsunami's output and modelock the laser: [[file:Modelocking.png|right|thumb|upright=0.9|Example spectra for how the Tsunami's spectrum should look before (top) and after (bottom) modelocking.]]
## Use the OceanOptics spectrometer (HR2000) to monitor the spectrum of the laser
## Wiggle the ''prism'' knob on the Tsunami until the spectrum changes from a sharp line to a broad distribution
## Make sure there is no CW-breakthrough (sharp line in the spectrum)
## Make sure both Bandwidth Detector (BWD) indicators in the Spitfire software are on
# Once the Tsunami is mode-locked put the beam tube back in
# Clear the faults in the Spitfire software by clicking on them
# Long-press ''Run'' in the software (this opens the shutter to the Empower pump laser)
# Go to ''Channels'' and open Channels 3, 2 and 1

=== Shutdown procedure ===
# Stop the amplifier in the Spitfire software
# Press ''Laser Power'' on the Tsunami's control box to stop the laser output
# Use the keyswitches to turn off the Empower, Tsunami and TDG
# Turn off the cooling fan next to the Tsunami
# Optional: The TDG power supply can be switched off
Important: Leave the power supply for the TCU, Tsunami and Empower on. These take very long to start up again once they have been shut off.

=== Maintenance ===
Inside the TCU is a humidity filter that has to be changed roughly every six months. New filters should be kept in stock.

=== Troubleshooting ===
Sometimes the Spitfire Software will fail to connect to the system and does not start. This is usually a problem with the LAN card that can be fixed the following way:

# Open the Windows Device Manager
# Locate the Intel network card that is connected to the Spitfire (Intel(R) 82574L Gigabit Network Connection)
# Right-click and disable the device, a white overlay icon should appear.
# Right-click and enable the device again
# Now the blue progress bar in the Spitfire software should start to fill and the software should start.

== Innolas Laser ==
[[file:Innolas_picolo_aot_mopa.jpg|right|thumb|upright=1.5|Innolas Picolo AOT MOPA]]
The Innolas Picolo AOT 1 MOPA Sub-Nanosecond Laser is a compact oscillator/amplifier laser system. It can be used at 532nm and 355nm wavelength.

=== Values from the data sheet ===

* Max Rep-rate: up to 5kHz, optimized for 1kHz
* Max Pulse Energy at 532nm: 60µJ
* Max Pulse Energy at 355nm: 30µJ
* Pulse Width at 1064nm (FWHM): <800ps @1kHz 
* Power Stability at 1064nm: < 5% 
* Max Average Power: 800mW
* Jitter to external trigger: < +/- 0.4ns 

=== Changing the wavelength ===
The output wavelength depends on the settings of two thermal controllers inside the laser head, TEC4 and TEC5. These temperatures can be set on the controller unit. The optimal values for 532nm or 355nm operation can be found in the manual. As of October 2016 these values are:
* 532nm: TEC4 = 44.0°C TEC5 = 54.2°C
* 355nm: TEC4 = 55.3°C TEC5 = 54.0°C
The controller "forgets" its settings after being disconnected from the power grid, you then need to set the values again after startup.

You need also to change the output caps at the laser head. Unused output ports have a beam block on them. So when changing the wavelength you need to open the required port and put the blocking cap on the previously open one.

=== Startup procedure ===

# Turn the key on the controller to position 1
# Wait for the temperature controllers to reach their target temperature
# Set the desired values for TEC4, TEC5 and frequency
# Turn the key on the controller to position 2
# Press the ''On/Off'' button to turn laser output on

=== Shutdown procedure ===

# Press the ''On/Off'' button to turn laser output off
# Turn the key on the controller to position 0
# Optional: Turn off power at the controller's rear side. This will cause the controller to "forget" manually entered settings.

== Transient Absorption Spectroscopy ==
The Transient Absorption setup is maintained by [[User:Michael.Adams | Michael Adams]].

=== Initial steps ===
# Turn on the Spitfire laser system (see above)
# Turn on the [http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=287 Thorlabs MC2000 Optical Chopper System]
# Turn on the [http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=988 Thorlabs FW102C filter wheel]
# Turn on the Thorlabs Delay stage controler (below the table, the switch is on the back)
# Make sure that the tec5 electronics for the detector are powered
# Make sure all devices are connected to the PC

=== Chopper Wheel ===
The chopper wheel reduces the pulse frequency of the 1kHz Spitfire output to 500Hz by blocking every second pulse. The Input signal (TTL) comes from the Spitfire, the Output signal (TTL) has to be connected to the tec5 PCI card inside the lab PC with a custom adapter. The controller has to be set to external reference. In order to halve the pulse frequency the harmonic multipliers have to be set to N=1 and D=2 (because f_ext = f_ref * N / D).

=== Pump light ===
==== 400nm (SHG of Spitfire) ====
Part of of the Spitfire output passes through the chopper wheel, goes via the delay stage through a beam reducer onto a Beta barium borate (BBO) crystal. This crystal converts the 800nm light to a wavelength of 400nm (frequency doubling). Residual 800nm light is removed with a shortpass filter. Check the quality of the 400nm light. If there is a dark line through the spot change the phase on the chopper wheel controller.

==== 355nm or 533nm (Innolas laser) ====
To-Do

==== Other wavelengths (TOPAS) ====
To-Do

=== Probe light (white light) ===
The 800nm output of the Spitfire amplifier is focussed into a sapphire crystal (located inside a cage system) to generate a white-light supercontinuum. Check the white light quality after the crystal. If no white light is visible, increase the power with the linear ND filter that is located earlier in the beampath. If the white light flickers unstably reduce the power or carefully move the crystal around. The spot should look smooth and without structure.

There will be an intense residual 800nm component in the white light that can be filtered out by placing a filter in the white light beampath. Alternatively there is a print-out spatial filter (essentially a black line printed on transparent foil) that can be placed directly in front of the detector inside the spectrometer box. You have to move it around manually so the blocking line is located where 800nm light hits the detector. This is best done in LiveView.

The white light should exit the cage not collimated but slightly focussed, so that the focus is located at the sample position. To achieve this, move the second lens in the crystal cage.

After the sample position the light passes the filter wheel and enters the spectrometer box that holds a mirror, a prism and the tec5 detector electronics. With the vertical axis of the mirror inside the box you can correct the height of the beam to properly hit the detector. Use the LiveView mode for this: move the beam up and down and look for the signal maximum. With the horizontal axis you can change the wavelength region to measure.

=== Software ===
The control software for the setup is written in LabVIEW, the project file is located under <tt>D:\Labview Programs\Michael Adams\TA_control\TA_control.lvproj</tt>.

Start and run TA_control.vi. Normally, you will need to run no other VI. Some helper VIs that can be run as standalone tools are located in the "utilities" directory.

The software can be run in a ''Simulation mode'' that does not need the lab hardware to be connected to the PC. This is useful only for development purposes.

The software should be closed with the ''Exit Program'' button and - if possible - not with LabVIEW's ''Abort Execution'' button.

=== Measurement ===

==== LiveView: Check Signal, Find Zerotime and Set Background ====
Once everything is set up, run LiveView in TA_control. The parameters here are:
* ''number of burst pairs'': When a trigger signal arrives, this is the number of spectra pairs (pump on/off) that are measured in one burst train. You should keep this at 50, values above 200 tend to lead to errors from the tec5 electronics.
* ''number of burst trains'': How many burst trains are to be measured.
* ''Integration time'': This should be set to the time between two laser pulses. For standard operation of the Spitfire amplifier at 1kHz, this has to be set to 1ms accordingly. Otherwise the spectra measurements will be out of sync with the laser.

Press ''Start'' to begin taking measurements. You need to stop and restart the measurements if you want to change the parameters. After pressing ''Stop'' you have to wait for the current burst train to finish, this is normal.

In the ''Waveforms'' tab you can see current measured spectra, which is useful for alignment of the white light on the detector. Make sure that the detector is not saturated. You can also see the dT/T signal. If you switch the window back to the TA_control.vi you can manually move the delay stage. This helps you in identifying where zerotime is on the stage (note the stage position in mm).

You need to make a measurement of the background signal. Block the white light on the table (but leave the pump light on) and press ''Start''. In ''Waveforms 2'' you can see the accumulated spectrum of all the measurements since you last hit ''Start''. There are two graphs, because the pump on/off background can differ in the amount of stray pump light. Use the ''Single Channel Viewer'' to look at a single channel. Usually the signal increases over time at the beginning of a measurement. If this is the case wait until the single channel signal reaches a constant level and restart the measurement. Leave it running until you are satisfied with the quality of your background spectrum, e.g. until the ''Difference between accumuated spectra'' reaches stable values. Save the backgrounds by pressing ''Set backgrounds''. If you want to redo the background measurement reset the active backgrounds first.

Press ''Exit'' to return to TA_control.

==== Generate Stage Position File ====
The positions for the delay stage are loaded from a simple textfile. It has to contain a list of numbers (the stage positions in mm) separated by line breaks. You can create this list manually or use the ''Generate Stage Position File'' dialog. You enter the first position, the last position and where zerotime is on the stage (in mm). You can select at how many positions before and after zerotime you want to perform a measurement and choose between linear and logarithmic spacing. You can then save the file for later reference or manual editing. Close the window by clicking ''Done'', the current positions are carried over to the main TA_control window.

==== Wavelength Calibration ====
Which detector channel receives which wavelengths depends on the sample thickness and the way it is mounted as well as the position of the mirror inside the spectrometer box. If any of those parameters are changed, a new wavelength calibration is necessary. Press ''Wavelength Calibration'' in TA_control. You can enter individual integration times for the five calibration measurements. These are performed after you click ''Let's go'' by iterating through the filters in the motorized filter wheel. These filters are:
# 450nm Longpass
# 532nm Bandpass
# 633nm Bandpass
# 730nm Bandpass
# 850nm Bandpass
# 950nm Bandpass

During normal TA measurements, the 450nm Longpass filter at position 1 is used to remove stray light of the 400nm pump. The wavelength calibration interates through the five bandpass filters and takes a spectrum for each. Usually there is less light in the short-wavelength region, adapt the integration time accordingly to get decent spectra for all filters with enough signal and without saturation.

The spectra are automatically fitted with a gaussian distribution to get the center channel. Select which wavelength-channel pairs you want to keep in the calibration.You can then save the calibration for later reference or manual editing. Only the selected wavelength-channel pairs are saved. How data is interpolated between them is not part of the calibration. A few possible interpolation methods can be displayed as a preview. Close the dialog by clicking ''Done'', the current calibration is carried over to the main TA_control window.

==== Start Measurement ====
Now everything should be ready so you can start the measurement. Go to TA_control's Setup-tab and choose your settings:
* ''Integration time, number of burst trains, number of burst-pairs'': These are the same settings as mentioned above for LiveView. Usually you can leave the integration time at 1ms and the number of burst-pairs at 50 and use only the number of trains to define how long you want to measure at each stage position.
* ''Sensor Work Mode'': Should be set to ExteralTriggerSlope. Refer to the tec5 manual for more information.
* ''Stage positions file, Wavelength calibration'': Select a position or calibration file to load.
* ''Save data directory'': Select the directory where your measurement data should be saved
* ''Base filename'': Enter the filename base without path or file extension. The filename will automatically generated as C:/path/to/file/FILENAME_001.bin, C:/path/to/file/FILENAME_002.bin, and so on.

You can check the backgrounds, stage positions and wavelength calibration before you start. Once you are ready, press ''Measure TA Spectrum''.

The spectator window opens and you can watch your dataset grow as it is being measured. You can also import previously measured TA data to compare.

To be continued...

== Cryostat ==
To-Do (Philipp?)

[[Category:Geräte_-_Devices]]
[[Category:F&E4]]
[[Category:AMOS]]

AMOS-Streak Camera

2017-07-26T08:10:45Z

Michael.Adams: Add Manuals section, spectral response and official name

<div style="padding:20px;background:#FDA;">The purpose of these instructions is to give you a quick overview on how to work with the devices. You should still be familiar with the manual and receive a proper introduction from the lab leader or the principal users.</div>

[[file:Lab 054.jpg|500px|thumb|right|LASER Lab]]

'''Device location''': Optiklabor F&E4-3GP

'''Lab location:''' [http://www.kit.edu/campusplan/?id=310 Building 310 Basement Room no. 054]

'''Phone number:''' 24669

'''Lab leader:''' [[user:Ian.Howard | Ian Howard]]

'''Principal users:''' [[user:Andrey.Turshatov | Andrey Turshatov]], [[user:Dmitry.Busko | Dmitry Busko]], [[user:Michael.Adams | Michael Adams]], [[user:Michael.Oldenburg | Michael Oldenburg]], [[user:Vu.Le | Vu-Hong Le]], [[user:Nicolo.Baroni | Nicolo Baroni]], [[User:Guojun.Gao | Guojun Gao]], [[User:Marius.Jakoby | Marius Jakoby]]

'''Access:''' The setup is in a class IV laser lab. Only trained users with key may use the setup. The Lab is located in the basement of building 310. Open the door of the basement of B310, go straight ahead and open another door. The new LASER Lab can be found on your left side.

== Short Description ==
[[file:Synchroscan Unit.jpg|200px|thumb|left|Streak camera with Synchroscan Unit]]

[[file:Slow Single Sweep.jpg|200px|thumb|right|Streak camera with Slow Single Sweep Unit]]

The streak camera is a device to measure ultra-fast light phenomena and delivers intensity vs. time vs.
wavelength information. It can be used in two configurations:

'''Synchroscan (< 5 ns)'''

In this configuration, the streak camera is synchronized with the LASER pulses. i.e., the capacitor in the streak camera charges and discharges in the LASER frequency. This is particularly useful for fast decays. For using this configuration the streak camera set-up has to be loaded with the synchroscan unit M10911. An additional delay unit can be used with the synchroscan to account for the delay between the generation and reception of a LASER pulse and for accurately finding the zero point in time from which decay starts.

'''Slow Single Sweep'''( upto 1 ms )

In this configuration, the streak camera is synchronized with the output of a pulse picker which will either divide the LASER pulse frequency by a factor or work in gated mode using the signal generated by an external function generator. For using this configuration, the streak camera set-up has to be loaded with the slow single sweep unit M10913.(See image on right). This is particularly useful for long lived species(> 100 microseconds) with weak intensity of emission. The streak camera then gives the signal accumulated over time.

[[File:Streak_spectral_response.jpg|300px|thumb|right|Spectral response of the streak tube. Our unit is the IR-enhanced S-1.]]

The official designation of our streak camera is '''Hamamatsu Universal streak camera C10910-02'''.

== Start-up Procedure==

===Mounting the Sample===
[[file:Sampleholder streakcamera.jpg|200px|thumb|right|Sample Holder]]

# Choose the required type of sample holder
# Fix the sample holder in the marked position on the optical table
# Carefully place the sample in the sample holder.
# Make sure that the sample is facing the right direction so that it will be incident by the LASER beam and the emission from the sample will reach the entrance slit of the streak camera.
# Horizontal and vertical adjustments can be made using the stage on which the chamber is mounted.
# If vacuum is required, close the holder with the aid of rubber bushes and clamps such that it is air tight and turn ON the vacuum pump by following the procedure below.

===Turning ON the vacuum pump===

# Connect the inlet tube of the vacuum pump to the sample holder
# Make sure that all joints are tightly closed.
# Ensure that the ventilation valve is closed. It can be found on the backside of the pump. See image.
# Press the green switch and wait for the pump to finish initialization, then press the power button
# The display can be changed to different pages by pressing the right/left arrow keys on the pump
# Pressure is displayed on Page 340 and the Speed in displayed in terms of rotational frequency in page 309
# Wait till sufficient vacuum is generated, normally 10^-5 hPa pressure
# If sufficient vacuum is not building up, try moving the ballast valve downwards to remove any residues. It can be seen from the right side of the pump. See image.
# If the sample has to be taken out of the chamber, for inspecting or for changing the direction, then first the vacuum has to broken.
# For this press the power button. Wait till the speed is below 100Hz. Then open the ventilation valve for faster shut down of the vacuum.
# Now, the chamber can be opened and the sample can be taken out for making the necessary changes.
# Repeat the procedure for starting the vacuum after tightly securing all joints.


<gallery caption="Vacuum Pump Gallery" widths="250px">
file:Vacuum pump.jpg|Vacuum Pump Pfeiffer HiCube 80 Eco for generating vacuum upto 10^-5 hPa
file:BallastValve vacuumPump.jpg|Ballast valve for cleaning out the residues in the Vacuum pump
file:VentilationValve VacuumPump.jpg|Ventilation Valve for the Vacuum Pump
</gallery>

=== Turning the LASER ON ===

# Turn ON the touch screen display for controlling the output of the CHAMELEON COMPACT OPO-VIS System with Idler(if it is not already ON). A mouse is also provided for convenience. Open the software for the OPO Compact system.
# It has options for different types of output. The direct LASER output, its SHG, the OPO output and its SHG
# Ensure that the shutter is closed and the cooling units for the LASER are switched ON.
# Make sure that the LASER will not go beyond or create unnecessary reflections outside the operating plane of the optical table.
# Roughly plan the path to be followed on the optical table and place mirrors, lenses and irises accordingly.
# Set the required wavelength for the Ti:Sa LASER.
# Turn the LASER key to ON position, and wait till the LASER ramps up enough power. Ideally at 800nm the power should be 4.3W.
# To start LASER emission, press the shutter button. (A yellow LED beneath the button indicates that the shutter is open)
# For alignment purposes, use reduced power, so pump the OPO by clicking on the controller. Generally for the streak camera reduced power after pumping the OPO will be sufficient. If the emission is too weak, one can stop pumping the OPO by clicking again on the controller.
# If a wavelength other than the set wavelength or its second harmonic is required, you can use the OPO for selecting the required wavelength. This can be done by clicking on the plot in the touch screen display and then entering the required wavelength on the pop-up window. Then wait for the OPO to tune to that frequency.
# Make sure to wear proper eye protection.
# To get the LASER output, click on the type of output required.
# To start the emission click Ti:Sa out or if the OPO is used to obtain a different wavelength, click opo out.
# Check the emitted light with the help of an appropriate detector card


<gallery caption="LASER gallery" widths="250px">
file:TiSa OPO Assembly.jpg|Ti:Sa LASER and OPO-VUS system with Idler
file:Tablet for LASER-OPO Assembly.jpg|Touch screen control for LASER system
file:LASER control.jpg|Main Control Panel for the LASER
file:Front view of Chameleon Compact OPO-VIS.jpg|Front View of Chameleon compact OPO-VIS system with Idler
</gallery>

==== Delivering beam to the sample-synchroscan mode====
# The LASER beam is to be directly taken to the sample from the output of the OPO-VIS in synchroscan mode
# Check how it is set currently. If the LASER beam is set in a way that it passes through the pulse picker, it has to be changed for synchroscan mode. Follow the steps below.
# Put a mirror at the output of the OPO-VIS, in front of the selected output, so that the beam will be rotated by 90 degrees.
# Rotate the beam by 90 degrees again, so that it falls on another mirror which will rotate it again by 90 degrees and make it pass through the pair of irises fixed on the table.
# There will be mirrors already fixed to the table to increase the height of the beam and another mirror which will reflect the beam onto the sample.
# For proper alignment, make sure that the beam passes through the irises.
# Fine tuning can be done using two pairs of irises and mirrors.
## Select the pairs such that an iris and a mirror farther from it, but earlier in the beam path form the pair.
## Focus on one pair at a time.
## Slightly adjust the mirror vertically or horizontally to make the beam pass through the centre of the iris.
## Make sure it passes through the centre by closing the iris.
## Repeat the same procedure for the other pair
## Continue the same procedure on the pairs alternatively, till the beam passes through the centre of both irises.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.

==== Delivering beam to sample through pulse picker ====
[[File:Delay Generator.jpg|150px|thumb|right|Delay Generator]]
[[File:FnGen Pulsepicker contoller.jpg|150px|thumb|right|Function generator for external triggering in gated mode (long delay) and the Pulse Picker Control system ]]
[[File:Pulsepickercontroller shortdelaymode.jpg|150px|thumb|right|Pulse picker controller in short delay mode]]
# Check how the beam path is set.
# If it is not set in the way that the required output passes through the pulse picker, the current setup has to be changed.
# Using two mirrors rotate the beam path such that it enters the pulse picker.
# There are two possible configurations-long delay(gated mode) and short delay
# In case long delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Set the required frequency on the external function generator
## Connect the AUX OUT port of the function generator to the EXT. TRIGGER of the pulse picker controller.
## Connect the MAIN OUT 50 ohm port of the function generator to the input port of the delay generator.
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the function generator, pulse picker controller and delay generator
## Set the trigger mode to "gate"
# If short delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Connect PULSE MONITOR output of the pulse picker controller to the input port of the delay generator
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the delay generator and pulse picker controller
## Set the Division Ratio - the factor by which you want the LASER frequency to be divided
## Set the trigger mode to "internal"
# Press the button to turn ON the RF mode on the pulse picker controller
# You will see two spots in ON mode. A bright one corresponding to the 2nd order of diffraction of the crystal inside the pulse picker and and a less intense one corresponding to the first order of diffraction.
# The beam causing the dim spot should be blocked using one of the irises, so that it doesn't reach the sample.
# Check if there is sufficient contrast between ON and OFF modes of RF using a detector card.
# If not, contact an authorized user for help to adjust the pulse picker.
# Using three mirrors, rotate and align the beam path such that it enters the irises already fixed on the table.
# Fine tune the alignment by following the steps given in the previous section.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.
# A long pass filer is put before the side slit of the streak camera to block out the incident light. Ensure that it is of the correct wavelength.

=== Setting up the Streak Camera ===
[[File:CoolingSystem streakcamera.jpg|100px|thumb|right|Cooling System for Streak Camera]]
[[File:Micrometer for streak camera slit.jpg|100px|thumb|right|Micrometer to control the slit-opening of the streak camera]]
[[File:Power suppplies.jpg|150px|thumb|right|Power Supply Units]]
# Ensure there is enough water in the chiller.
# To turn on the chiller, first press the black switches on both units. This already starts the cooling of the bath. The display on the top unit shows first a temperature and after few seconds, OFF is displayed.
# Give a long press on the OK button (below the display and to the right of the up and down arrows) and the display will show the coolant temperature. This starts the circulation pump and the heater. See image.
# Make sure that the slit before the streak camera is set to zero (fully closed). See image.
# Switch on the computer.
# There are two possible modes. Make the connections according to the mode required.

==== Synchroscan Mode ====
* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the synchroscan unit M10911, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the synchroscan unit M10911 into the streak camera and lock it by turning the black knob
* Connect the SYNC IN and REF OUT cables to the unit. These cables come from the synchroscan delay unit kept on the rack above and are labelled.
* Connect the output of the syncing device controller to the synchroscan delay unit.
* Turn ON the power supplies for the streak camera, monochromator, delay unit for synchroscan, and the power supply for the syncing device which is used to detect the LASER frequency.
* Turn ON the camera by moving the ON/OFF slider

==== Slow Single Sweep Mode ====

* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the slow single sweep unit M10913, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the slow single sweep unit unit M10913 into the streak camera and lock it by turning the black knob
* Connect the output (AB) of the external delay generator to the TRIG IN port of the slow single sweep unit
* Turn ON the power supplies for the streak camera and the monochromator
* Turn ON the camera by moving the ON/OFF slider

== Measurement ==
[[File:Streakcamera focus mode.png|300px|thumb|right|Streak Camera Software HPDTA - showing streak camera in focus mode]]

# Turn on the software HPDTA on the computer by Hamamatsu.
# In the software, open live video and click auto-scale (star button at the bottom right of the LUT control window). A green streak will be visible at the center, this is because the cooling is not yet turned on in the software.
# Turn Cooling ON in the streak camera control palette on the left and you can see the streak vanishing.
# Make sure that the proper filter is mounted just beore the side slit of the streak camera
# Set the central wavelength in the monochromator control palette
# Select the required grating( 200g/mm, 100g/mm and 50g/mm) in the monochromator control palette. Choose 50g/mm if you want a large range and choose 200g/mm if you want a greater resolution
# Also set the required timescale in the streak camera palette
# Turn OFF the lights in the lab as the streak camera measurements are sensitive
# By default, the camera will be in Focus mode, if it is not change the Mode to Focus
# Open the photocathode opening slowly upto 20mm. If necessary go upto 40, but never more than that.
# Open the shutter by clicking on the respective button in the software
# Start increasing the gain from 0 to see the emission on the streak camera. Do not let the gain exceed 20 in focus mode
# Adjust the mirror reflecting light on the sample vertically and horizontally to get maximum signal with minimum gain
# The sample position can also be adjusted, if it aids in bringing in more emitted light to the streak camera
# Also the width of the side slit of the streak camera ( max 3000mm) can be adjusted to gather more emitted light
# Set the appropriate timescale and gain in the control palette.
# In the software control palette, change the Streak Camera Mode from 'Focus' to 'Operate'. Click auto-scale in the live video window.
# Find zero time by adjusting the delay in the delay generator control palette
# Adjust the timescale,delay, gain and photocathode opening for the optimal measurement.
# Freeze the live video
# Select Analog integration tab in the same window and set integration time and number of exposures and get the result of the integration
# Save the data.
# In case the detected light is very weak, you will have to use photon counting mode. For this select photon counting tab instead of analog integration.
# Select a rectangle as the ROI in the brightest part of the spectrum for checking whether the measurement will be accurate.
# The percentage of hits should be less than 5%.

== Shutdown Procedure ==

# Make sure you have saved all the data required.
# Close the photocathode opening.
# Close the shutter of the streak camera using the software
# Turn OFF the output of the CHAMELEON COMPACT OPO-VIS using the tablet.
# Turn OFF the software and the streak camera.
# Turn ON the lights
# Press the shutter button of the LASER to close the shutter.
# Turn Ti:Sa LASER key to Standby
# Turn OFF the delay generator, function generator and pulse picker(if used)
# Turn OFF the computer.
# Wait for 20 minutes to turn off the chiller. Press OK key first (turns off pump and heater), then the black switches (turns off cooling). If you only turn off the pump you'll completely freeze the bath water, which takes around three days to melt unassisted.

== Manuals ==
As it is good practice to make yourself familiar with the manual first, the streak camera and the software manual are located in a drawer of the lab. PDF versions can be accessed under ''J:\FuE4-N4E\Manuals\Machines\Optics Lab 054''.

== See also ==
* [https://www.hamamatsu.com/us/en/product/category/5001/5011/5048/U13313-01/index.html HPD-TA Software overview]
* [https://www.hamamatsu.com/us/en/product/category/5001/5011/5041/C10910-02/index.html Overview of the streak camera on the Hamamatsu website]

[[Category:Geräte - Devices]]
[[Category:Prüfmittel - Measuring Equipment]]
[[Category:F&E4]]
[[Category:AMOS]]

File:Streak spectral response.jpg

2017-07-26T08:06:16Z

Michael.Adams: The spectral response of the streak camera's photocathode (S1) in the 054 lab.

The spectral response of the streak camera's photocathode (S1) in the 054 lab.

Allgemein - General

2017-07-26T07:48:59Z

Michael.Adams: Add link to Wikipedia:Phishing

[[{{PAGENAME}}/English|English Version]]

In letzter Zeit erreichen uns häufig E-Mails mit infizierten Anhängen. Diese enthalten Schadsoftware, die den PC infiziert und weitere Viren / Trojaner nachladen kann. Dies ist unabhängig vom Dateityp des Anhangs. Es gibt auch Anhänge, die alle Dateien, auf die Sie Schreibzugriff haben (inkl. Netzlaufwerke) verschlüsseln, so dass Sie sie nicht mehr lesen können. Dies ist vor kurzem in einem Nachbarinstitut passiert. Damit sind alle Ihre Daten weg, und im Zweifelsfall muss Ihr PC komplett neu installiert werden. Viele dieser neuen Schadprogramme können vom Virenscanner nicht entdeckt werden. Der beste Virenschutz ist der Benutzer selbst, indem er mitdenkt!

Öffnen Sie daher Anhänge nur dann, wenn Sie sicher sind, dass die E-Mail von einem bekannten Absender kommt, und wenn Sie von diesem auch einen Anhang erwarten. Beachten Sie dabei auch, dass der angezeigte Absender auch wirklich richtig ist, denn Absenderadressen können gefälscht sein. Außerdem könnte auch der PC des Senders infiziert sein. Im Zweifelsfall fragen Sie beim Absender nach, ob er Ihnen wirklich eine E-Mail geschickt hat. Antworten Sie dabei NICHT auf die erhaltene E-Mail, sondern senden Sie eine neue, damit Sie sicher sind, dass die Nachricht auch den gewünschten Empfänger erreicht. Überlegen Sie auch, ob der Absender wirklich Ihre KIT Adresse kennen kann.

Auch wenn Sie in der E-Mail direkt mit dem Namen angesprochen werden oder die E-Mail ein bekanntes Firmenlogo enthält, ist dies keinerlei Garantie, dass der Absender der ist, für den er sich ausgibt.

Klicken Sie auch nicht auf irgendwelche Links in einer Nachricht, denn die angezeigte Adresse muss nicht die sein, auf die Sie dann wirklich geleitet werden. Fahren Sie mit der Maus einfach über den Link, ohne zu klicken, dann wird das eigentliche Ziel angezeigt. Klicken Sie nur dann, wenn die Adresse verlässlich ist und nicht z.B. eine ausländische Endung hat.

'''Falls Sie befürchten, dass Ihr PC infiziert ist, dann schalten Sie ihn sofort aus, indem Sie so lange auf den Powerschalter drücken bis der PC aus ist. Danach informieren Sie den IMT Admin, damit er den PC mit einer bootbaren DVD überprüfen kann. Eventuell können dann noch Daten gerettet werden.'''

Häufig gibt es inzwischen auch sogenannte [https://de.wikipedia.org/wiki/Phishing Phishing] Mails, in denen aufgefordert wird, über einen Link auf eine WWW-Seite zu gehen, sonst würde z.B. das Postfach oder Ihr Account gesperrt. Auf der entsprechenden Seite sollen Sie sich dann entweder mit Ihrem Account und Kennwort anmelden oder auf irgendeine andere Weise Ihre Accountinformation angeben. '''Tun Sie das nie!''' Wenn Zugangsdaten auf so einer Seite eingegeben werden, dann wird anschließend Ihr Konto dafür benutzt, Spammails oder ähnliches zu versenden. Wenn Ihr Account für Spammails oder ähnlichem missbraucht wird, wird das Rechenzentrum Ihren Account sofort komplett sperren.

Unser Rechenzentrum SCC wird Sie nie per E-Mail auffordern, Ihre Accountdaten auf irgendeiner WWW-Seite einzugeben. Kennwörter im KIT laufen nie ab! Wenn Sie eine Meldung erhalten, dass Ihr Account abläuft, dann enthält diese einen Hinweis, dass Sie sich an die IT-Verantwortlichen im IMT melden müssen.

KIT-Zugangsdaten dürfen nur auf Seiten eingegeben werden, die in der Adressleiste oben im Browser auf kit.edu enden.

[[Category: Schadsoftware - Malware]]

Allgemein - General/English

2017-07-26T07:47:56Z

Michael.Adams: Add link to Wikipedia:Phishing

At the moment often e-mails arrive with attachments which contain malware. This is independent of the file type of the attachment. This malware can infect your PC and download additional malware. Some of this malware can encrypt all the files for which you have write access (including network shares).This happened recently in another institute of KIT. In this case all your data are lost, and in most cases the PC has to be re-installed. Most of these new malware programs cannot be detected by the antivirus program. The best antivirus program is the user himself if he thinks before he clicks.

So please open mail attachments only if you are sure that the e-mail is from a sender you know, and you expect an attachment from him. Please regard that the sender address can be faked, and the PC of the sender can be infected also. If you’re in doubt the please ask the sender if the e-mail is really from him. Do NOT reply but send him a new e-mail so that you can be sure that the e-mail address is correct. Please think twice if the sender really can know your KIT email address.

Even if you're addressed in the e-mail with your name or it contains a valid company logo this is no guarantee that the sender is really the one he pretends to be.

Don’t click on any shortcut in the mail because the shortcut shown may not be the real shortcut. Hover the mouse over the shortcut without clicking, and the destination will be shown. Only click when the destination is reliable and doesn’t have an ending which you don’t know.

'''If you think your PC is infected then switch it off immediately by pressing the power button until the PC is off. Then contact the IMT admin. He can check your PC with a bootable antivirus DVD.'''

Often so-called [https://en.wikipedia.org/wiki/Phishing Phishing] Mails arrive too, which ask you to click on a link to a web page where you should enter your KIT account information, otherwise your mailbox or account will be de-activated or something similar. '''Never do this!''' If you enter your account information on such a page then your account will be used for sending spam mails or malware. In this case our computing center SCC will de-activate your account immediately.

SCC will never send a request to logon on a web page with your KIT account. Passwords in KIT never expire! If you receive a message that your account will expire or that the de-activation process is started then this message will also contain the remark that you should contact the admins in IMT.

KIT-account informations should only be used on web pages for which the '''address displayed in the address bar of the browser ends with .kit.edu'''. All other addresses are not from KIT!

Category:AMOS

2017-06-23T11:03:51Z

Michael.Adams: Add search terms

[[file:AMOS_logo_white.png|300px|thumb|right|AMOS Logo]]

AMOS (Advanced Materials and Optical Spectroscopy) is a sub-group of [[F&E4]] led by [[User:Ian.Howard|Dr. Ian Howard]].

The AMOS research group, established in 2014, focuses on creating and characterizing optoelectronic materials designed for energy conversion and photonic applications. Optical spectroscopy lies at the heart of our research, with laser labs based around Ti:Sapphire amplifier and oscillator systems allowing us to interrogate our materials with a wide range of experimental techniques. We have a special focus on time-resolved absorption and emission spectroscopies that track dynamic processes from hundreds of femtoseconds to seconds and allow us to understand and improve material function.

== See also ==
* [http://www.imt.kit.edu/howard.php AMOS group on the IMT website]

[[Category:F&E4]]

{{suchbegriffe|Transient Absorption, Streak camera, PLQY, Fluorescence, Phosphorescence, Luminescence, SURMOF, Upconversion, Perovskites}}

Category:AMOS

2017-06-23T11:00:53Z

Michael.Adams: Add link to IMT site

User:Michael.Adams

2017-06-23T10:58:47Z

Michael.Adams: Add AMOS category

[[file:User_Michael_Adams.jpg|thumb|200x276px|rechts|Klassisches Bewerbungsfoto]]


'''Department''': [[F&E4]]

'''Research Field''': Time-resolved spectroscopy

'''Building''': 307

'''Room''': 222

'''Phone''': 0721-608-22607

'''E-mail''': mailto:michael.adams@kit.edu

== Job description ==
Since April 1st 2015 I am a PhD student in the group of [[User:Bryce.Richards|Prof. Dr. Bryce S. Richards]] at IMT. Previously I studied physics at KIT and did my master thesis on „STED-enhanced 2D laser lithography in thin resist films“ at the Institut für Angewandte Physik (APH).

My work here centers on time-resolved ultrafast spectroscopy. I built and maintain the Transient Absorption setup in the [[AMOS-Tralala|Tralala]] lab. My research focus is on understanding the movement of energy/electrons in materials such as surface anchored metal organic frameworks (SURMOFs) after photoexcitation.

== Software skills ==
* LabVIEW
* Matlab

== Trivia==
* Member of the [[Wiki-Team]]
* Member of the [[Karlsruhe School of Optics & Photonics (KSOP)]]
* Made an [https://git.scc.kit.edu/michael.adams/kit-poster-template-svg/tree/master inofficial KIT poster template for Inkscape]




[[Category:Mitarbeiter - Employees]]
[[Category:Doktoranden - PhD Students]]
[[Category:F&E4]]
[[Category:KSOP]]
[[Category:AMOS]]

Category:AMOS

2017-06-23T10:57:51Z

Michael.Adams: Paste description from IMT website

Messwafer

2017-06-23T10:56:08Z

Michael.Adams: Remove category IMT-Wiki

[[{{PAGENAME}}/English | English Version]]


'''Gerätebezeichnung:'''

'''Geräteverantwortliche/Operateure:'''

'''Standort:''' Im Hochschrank im Durchgang zwischen Reinraum (R. 142) und E-Beam

'''Prüfmittel/Fertigungsnummer:'''

== Kurzbeschreibung ==
*Temperaturbereich:
*Zeitliche Auflösung:
*Besonderheiten:

== Zubehör ==
* PDA
* Kalibrierwiderstände

== Alternativen ==
Gibt es andere Geräte, die gleiche oder ähnliche Funktion haben/Prozesse durchführen können? Bitte hier benennen und verlinken. Den korrekten Namen der Wiki-Seite des zu verlinkenden Geräts findet sich in der [[Prüfmittel_Liste_-_List_of_Measurement_Devices| Prüfmittel Liste]] oder der [[Liste der Fertigungsmittel - List of Manufacturing Equipment|Liste der Fertigungsmittel]].

== Spezifikationen des Geräts ==
*Messwafer: Si-Wafer mit 9 Sensoren
'''Zubehör:'''
*Sendestation SensArray
*2 Kalibrierwiderstände für Sendestation
*PDA mit SD-Karte und USB-Kabel
*Software [[THERMAL TRACK]] (Installationsdatei auf SD-Karte)
*Optional: Software Microsoft Active Sync (Installationsdatei auf SD-Karte)

== Etablierte Prozesse ==
Welche Prozesse wurden erfolgreich mit diesem Gerät durchgeführt, welche Materialien wurden mit dem Gerät strukturiert, geprüft, verarbeitet? Bitte keine Prozessparameter und sensible Details in die Wiki eintragen, stattdessen Hinweise, wo man diese finden oder erfragen kann (z.B. Pfad zu Dokument im J: Laufwerk).

== Einschränkungen ==
Welche Prozesse lassen sich mit dem Gerät nicht durchführen oder würden die Funktion des Gerätes beeinträchtigen?

== Eingewiesene Nutzer ==
*[[User:Jan.Meiser|Meiser, Jan]]

== Kurzanleitung ==

=== Daten aufnehmen ===
Vorab: Installation der Software [[THERMAL TRACK]] auf PC durch [[User:Dieter.Gutjahr|Hr. Gutjahr]] oder [[User:Ulrich.Klein|Hr. Klein]].
#Verbinden des Messwafers mit der Sendestaton ''SensArray''.
#PDA einschalten.
##Passwort: '''07648'''
##Kontrolle: Bluetooth an?
##*Auf Startseite des PDAs ggf. auf Bluetooth-Symbol klicken, wenn Symbol grauunterlegt und weißes X auf rotem Grund.
##''Start > THERMAL TRACK''
##Dropdown-Menü: '''User 1'''
##''Log On'' klicken
##Enter Pin: '''07648'''
##''Menu > Measure > Timed''
##Messzeit einstellen: obere Hälfte klicken = +1 / untere Hälfte klicken = -1
##Häkchen vor Log Data setzen
##Optional: aus Dropdownliste Aktion für PDA nach Ende der Messung wählen (Stay Ready / Log Off / Power Down / Log Off and Power Down)
##Start klicken
##Optional: Kommentar eingeben > OK klicken
##Messung startet automatisch
Bemerkungen: Datei-Name wird vom Programm automatisch aus Datum und Uhrzeit generiert. Nachträgliche Umbenennung oder Kommentierung möglich:
*''Menu > Data > Manage Files…''
*Aus Dropdownliste Datalog Files auswählen
*''Rename'' klicken
*Namen ändern, OK klicken

=== Daten in Excel importieren ===
#PDA über USB-Kabel an PC anschließen.
#PDA entsperren. Passwort: '''07648'''
#ActiveSync startet u.U. automatisch. Abbrechen und Fenster schließen / minimieren
#Auf PC Programm [[THERMAL TRACK]] starten.
#''Retrieve > Data File''
#Datei mit Messdaten auswählen
#Speicherort auswählen
#Automatische Importierung der Messdaten in Excel-Datei.

[[Category:Geräte - Devices]]

Template:Note

2017-06-21T12:07:35Z

Michael.Adams:

Template:Suchbegriffe

2017-06-21T12:05:09Z

Michael.Adams: Undo revision 6194 by Michael.Adams (talk)

{| class="wikitable" style="width:100%;" id="search-terms"
|-
!Suchbegriffe
|-
|{{{1}}}
|}

Template:Note

2017-06-21T12:03:03Z

Michael.Adams:

Template:Note

2017-06-21T12:01:49Z

Michael.Adams:

Template:Suchbegriffe

2017-06-21T11:58:38Z

Michael.Adams:

Template:Note

2017-06-21T11:56:31Z

Michael.Adams: Create Template:Note

{| class="wikitable" style="width:100%;"
|{{{1}}}
|}

Wiki-Syntax

2017-06-21T11:51:22Z

Michael.Adams: Added link to colon trick description

The following Text is a copy of the [http://www.mediawiki.org/wiki/Help:Formatting mediawiki Help-Page on Formatting]. Syntax on how to use '''Links''' and '''Images''' can also be found there:
* [http://www.mediawiki.org/wiki/Help:Links Mediawiki-Help Links]
* [http://www.mediawiki.org/wiki/Help:Images Mediawiki Help Images]
* [https://en.wikipedia.org/wiki/Help:Colon_trick Colon trick for links to files/images]

You can format your text by using wiki markup. This consists of normal characters like asterisks, single quotes or equal signs which have a special function in the wiki, sometimes depending on their position. For example, to format a word in ''italic'', you include it in two pairs of single quotes like <code><nowiki>''this''</nowiki></code>.

== Text formatting markup ==

{| class="wikitable"
! Description
! width=40% | You type
! width=40% | You get
|-
! colspan="3" style="background:#ABE" | character (inline) formatting – ''applies anywhere''
|-
| Italic text
| <pre>
''italic''
</pre>
|
''italic''
|-
| Bold text
| <pre>
'''bold'''
</pre>
|
'''bold'''
|-
| Bold and italic
| <pre>
'''''bold & italic'''''
</pre>
|
'''''bold & italic'''''
|-
| Strike text
| <pre>
<strike> strike text </strike>
</pre>
|<strike> strike text </strike>
|-
| Escape wiki markup
| <pre>
<nowiki>no ''markup''</nowiki>
</pre>
|
<nowiki>no ''markup''</nowiki>
|-
| Escape wiki markup once
| <pre>
[[API]]<nowiki/>extension
</pre>
|
[[API]]<nowiki/>extension
|-
! colspan="3" style="background:#ABE" | section formatting – ''only at the beginning of the line''
|-
| Headings of different levels
| <pre>

== Level 2 ==

=== Level 3 ===

==== Level 4 ====

===== Level 5 =====

====== Level 6 ======

</pre>
----
{{note|
* [[Help_talk:Formatting#Level_1|Skip Level 1]], it is page name level.
* An article with 4 or more headings automatically creates a [[wikipedia:Wikipedia:Section#Table of contents (TOC)|table of contents]].
}}
|

== Level 2 ==

=== Level 3 ===

==== Level 4 ====

===== Level 5 =====

====== Level 6 ======

|-
| Horizontal rule
| <pre>
Text above
----
Text below
</pre>
|
Text above
----
Text below
|-
| Bullet list
|
<pre>
* Start each line
* with an [[Wikipedia:asterisk|asterisk]] (*).
** More asterisks gives deeper
*** and deeper levels.
* Line breaks don't break levels.
*** But jumping levels creates empty space.
Any other start ends the list.
</pre>
|
* Start each line
* with an [[Wikipedia:asterisk|asterisk]] (*).
** More asterisks gives deeper
*** and deeper levels.
* Line breaks don't break levels.
*** But jumping levels creates empty space.
Any other start ends the list.
|-
| Numbered list
|
<pre>
# Start each line
# with a [[Wikipedia:Number_sign|number sign]] (#).
## More number signs gives deeper
### and deeper
### levels.
# Line breaks don't break levels.
### But jumping levels creates empty space.
# Blank lines

# end the list and start another.
Any other start also
ends the list.
</pre>
|
# Start each line
# with a [[Wikipedia:Number_sign|number sign]] (#).
## More number signs gives deeper
### and deeper
### levels.
# Line breaks don't break levels.
### But jumping levels creates empty space.
# Blank lines

# end the list and start another.
Any other start also
ends the list.
|-
| Definition list
| <pre>
;item 1
: definition 1
;item 2
: definition 2-1
: definition 2-2
</pre>
|
;item 1
: definition 1
;item 2
: definition 2-1
: definition 2-2
|-
| Indent text
| <pre>
: Single indent
:: Double indent
::::: Multiple indent
</pre>
----
{{Note|This workaround may be controversial from the viewpoint of accessibility.}}
|
: Single indent
:: Double indent
::::: Multiple indent
|-
| Mixture of different types of list
|
<pre>
# one
# two
#* two point one
#* two point two
# three
#; three item one
#: three def one
# four
#: four def one
#: this looks like a continuation
#: and is often used
#: instead of <nowiki> </nowiki>
# five
## five sub 1
### five sub 1 sub 1
## five sub 2
</pre>
----
{{note|The usage of <code>#:</code> and <code>*:</code> for breaking a line within an item may also be controversial.}}
|
# one
# two
#* two point one
#* two point two
# three
#; three item one
#: three def one
# four
#: four def one
#: this looks like a continuation
#: and is often used
#: instead of <nowiki> </nowiki>
# five
## five sub 1
### five sub 1 sub 1
## five sub 2{{anchor|pre}}
|-
| Preformatted text
| <pre>
Start each line with a space.
Text is '''preformatted''' and
''markups'' '''''can''''' be done.
</pre>
----
{{note|This way of preformatting only applies to section formatting. Character formatting markups are still effective.}}
|
Start each line with a space.
Text is '''preformatted''' and
''markups'' '''''can''''' be done.
|-
| Preformatted text blocks
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[[Category:IMT-Wiki]]

Inhaltsverzeichnis - Table of Contents

2017-05-05T14:27:55Z

Michael.Adams:

Struktur des IMT-Wikis:

# [[:Category:QMS| Qualitätsmanagementsystem]]
# [[:Category:IMT_Intern| IMT-Intern]]
# [[:Category: Infrastruktur| Reinraum]]
# [[:Category:Anleitungen - Instructions|Anleitungen - Instructions]]
## [[:Category:IMT-Wiki|IMT-Wiki]]
## [[:Category:Herstellung - Fabrication|Herstellung - Fabrication]]
## [[:Category:Papierkram - Paperwork|Papierkram - Paperwork]]
##* [[:Category:Qualitätsmanagementsystem|Tipps und Tricks für das Qualitätsmanagementsystem]]
##* [[:Category:Bestellungen|Bestellungen]]
##* [[:Category:Doktorandenzeug - PhD Stuff|Doktorandenzeug - PhD Stuff]]
## [[:Category:PC FAQ|PC Infos - PC Informations]]
## [[:Category:SAP&SRM-System|SAP&SRM-System]]
## [[:Category:Software|Software]]
## [[:Category:Telefon - Phone|Telefon - Phone]]
# [[:Category:Spielregeln - Rules|Spielregeln - Rules]]
# [[:Category:Geräte - Devices|Geräte - Devices]]
## [[:Category:Fertigungsmittel - Manufacturing Equipment|Fertigungsmittel - Manufacturing Equipment]]
## [[:Category:Prüfmittel - Measuring Equipment|Prüfmittel - Measuring Equipment]]
# [[:Category:Mitarbeiter - Employees|Mitarbeiter - Employees]]
## [[:Category:Doktoranden - PhD Students|Doktoranden - PhD Students]]
## [[:Category:Funktionsbereiche - Departments|Funktionsbereiche - Departments]]
# [[:Category:Organisationen - Organisations|Organisationen - Organisations]]
## [[:Category:KNMF|KNMF]]
## [[:Category:KSOP|KSOP]]
# [[:Category:Listen - Lists|Listen - Lists]]

Diese Liste bildet nicht den gesamten Inhalt des Wikis ab! Wenn Sie etwas bestimmtes suchen, benutzen Sie die [[Special:Search|Suchfunktion]].

''This list does not represent every page in this wiki! If you are looking for something specific, use the [[Special:Search|search function]].''

AMOS-Streak Camera

2017-05-05T13:59:32Z

Michael.Adams: /* Shutdown Procedure */ clarify on the chiller

<div style="padding:20px;background:#FDA;">The purpose of these instructions is to give you a quick overview on how to work with the devices. You should still be familiar with the manual and receive a proper introduction from the lab leader or the principal users.</div>

[[file:Lab 054.jpg|500px|thumb|right|LASER Lab]]

'''Device location''': Optiklabor F&E4-3GP

'''Lab location:''' [http://www.kit.edu/campusplan/?id=310 Building 310 Basement Room no. 054]

'''Phone number:''' 24669

'''Lab leader:''' [[user:Ian.Howard | Ian Howard]]

'''Principal users:''' [[user:Andrey.Turshatov | Andrey Turshatov]], [[user:Dmitry.Busko | Dmitry Busko]], [[user:Michael.Adams | Michael Adams]], [[user:Michael.Oldenburg | Michael Oldenburg]], [[user:Vu.Le | Vu-Hong Le]], [[user:Nicolo.Baroni | Nicolo Baroni]]

'''Access:''' The setup is in a class IV laser lab. Only trained users with key may use the setup. The Lab is located in the basement of building 310. Open the door of the basement of B310, go straight ahead and open another door. The new LASER Lab can be found on your left side.

== Short Description ==
[[file:Synchroscan Unit.jpg|200px|thumb|left|Streak camera with Synchroscan Unit]]

[[file:Slow Single Sweep.jpg|200px|thumb|right|Streak camera with Slow Single Sweep Unit]]

The streak camera is a device to measure ultra-fast light phenomena and delivers intensity vs. time vs.
wavelength information. It can be used in two configurations:

'''Synchroscan (< 5 ns)'''

In this configuration, the streak camera is synchronized with the LASER pulses. i.e., the capacitor in the streak camera charges and discharges in the LASER frequency. This is particularly useful for fast decays. For using this configuration the streak camera set-up has to be loaded with the synchroscan unit M10911. An additional delay unit can be used with the synchroscan to account for the delay between the generation and reception of a LASER pulse and for accurately finding the zero point in time from which decay starts.

'''Slow Single Sweep'''( upto 1 ms )

In this configuration, the streak camera is synchronized with the output of a pulse picker which will either divide the LASER pulse frequency by a factor or work in gated mode using the signal generated by an external function generator. For using this configuration, the streak camera set-up has to be loaded with the slow single sweep unit M10913.(See image on right). This is particularly useful for long lived species(> 100 microseconds) with weak intensity of emission. The streak camera then gives the signal accumulated over time.

== Start-up Procedure==

===Mounting the Sample===
[[file:Sampleholder streakcamera.jpg|200px|thumb|right|Sample Holder]]

# Choose the required type of sample holder
# Fix the sample holder in the marked position on the optical table
# Carefully place the sample in the sample holder.
# Make sure that the sample is facing the right direction so that it will be incident by the LASER beam and the emission from the sample will reach the entrance slit of the streak camera.
# Horizontal and vertical adjustments can be made using the stage on which the chamber is mounted.
# If vacuum is required, close the holder with the aid of rubber bushes and clamps such that it is air tight and turn ON the vacuum pump by following the procedure below.

===Turning ON the vacuum pump===

# Connect the inlet tube of the vacuum pump to the sample holder
# Make sure that all joints are tightly closed.
# Ensure that the ventilation valve is closed. It can be found on the backside of the pump. See image.
# Press the green switch and wait for the pump to finish initialization, then press the power button
# The display can be changed to different pages by pressing the right/left arrow keys on the pump
# Pressure is displayed on Page 340 and the Speed in displayed in terms of rotational frequency in page 309
# Wait till sufficient vacuum is generated, normally 10^-5 hPa pressure
# If sufficient vacuum is not building up, try moving the ballast valve downwards to remove any residues. It can be seen from the right side of the pump. See image.
# If the sample has to be taken out of the chamber, for inspecting or for changing the direction, then first the vacuum has to broken.
# For this press the power button. Wait till the speed is below 100Hz. Then open the ventilation valve for faster shut down of the vacuum.
# Now, the chamber can be opened and the sample can be taken out for making the necessary changes.
# Repeat the procedure for starting the vacuum after tightly securing all joints.


<gallery caption="Vacuum Pump Gallery" widths="250px">
file:Vacuum pump.jpg|Vacuum Pump Pfeiffer HiCube 80 Eco for generating vacuum upto 10^-5 hPa
file:BallastValve vacuumPump.jpg|Ballast valve for cleaning out the residues in the Vacuum pump
file:VentilationValve VacuumPump.jpg|Ventilation Valve for the Vacuum Pump
</gallery>

=== Turning the LASER ON ===

# Turn ON the touch screen display for controlling the output of the CHAMELEON COMPACT OPO-VIS System with Idler(if it is not already ON). A mouse is also provided for convenience. Open the software for the OPO Compact system.
# It has options for different types of output. The direct LASER output, its SHG, the OPO output and its SHG
# Ensure that the shutter is closed and the cooling units for the LASER are switched ON.
# Make sure that the LASER will not go beyond or create unnecessary reflections outside the operating plane of the optical table.
# Roughly plan the path to be followed on the optical table and place mirrors, lenses and irises accordingly.
# Set the required wavelength for the Ti:Sa LASER.
# Turn the LASER key to ON position, and wait till the LASER ramps up enough power. Ideally at 800nm the power should be 4.3W.
# To start LASER emission, press the shutter button. (A yellow LED beneath the button indicates that the shutter is open)
# For alignment purposes, use reduced power, so pump the OPO by clicking on the controller. Generally for the streak camera reduced power after pumping the OPO will be sufficient. If the emission is too weak, one can stop pumping the OPO by clicking again on the controller.
# If a wavelength other than the set wavelength or its second harmonic is required, you can use the OPO for selecting the required wavelength. This can be done by clicking on the plot in the touch screen display and then entering the required wavelength on the pop-up window. Then wait for the OPO to tune to that frequency.
# Make sure to wear proper eye protection.
# To get the LASER output, click on the type of output required.
# To start the emission click Ti:Sa out or if the OPO is used to obtain a different wavelength, click opo out.
# Check the emitted light with the help of an appropriate detector card


<gallery caption="LASER gallery" widths="250px">
file:TiSa OPO Assembly.jpg|Ti:Sa LASER and OPO-VUS system with Idler
file:Tablet for LASER-OPO Assembly.jpg|Touch screen control for LASER system
file:LASER control.jpg|Main Control Panel for the LASER
file:Front view of Chameleon Compact OPO-VIS.jpg|Front View of Chameleon compact OPO-VIS system with Idler
</gallery>

==== Delivering beam to the sample-synchroscan mode====
# The LASER beam is to be directly taken to the sample from the output of the OPO-VIS in synchroscan mode
# Check how it is set currently. If the LASER beam is set in a way that it passes through the pulse picker, it has to be changed for synchroscan mode. Follow the steps below.
# Put a mirror at the output of the OPO-VIS, in front of the selected output, so that the beam will be rotated by 90 degrees.
# Rotate the beam by 90 degrees again, so that it falls on another mirror which will rotate it again by 90 degrees and make it pass through the pair of irises fixed on the table.
# There will be mirrors already fixed to the table to increase the height of the beam and another mirror which will reflect the beam onto the sample.
# For proper alignment, make sure that the beam passes through the irises.
# Fine tuning can be done using two pairs of irises and mirrors.
## Select the pairs such that an iris and a mirror farther from it, but earlier in the beam path form the pair.
## Focus on one pair at a time.
## Slightly adjust the mirror vertically or horizontally to make the beam pass through the centre of the iris.
## Make sure it passes through the centre by closing the iris.
## Repeat the same procedure for the other pair
## Continue the same procedure on the pairs alternatively, till the beam passes through the centre of both irises.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.

==== Delivering beam to sample through pulse picker ====
[[File:Delay Generator.jpg|150px|thumb|right|Delay Generator]]
[[File:FnGen Pulsepicker contoller.jpg|150px|thumb|right|Function generator for external triggering in gated mode (long delay) and the Pulse Picker Control system ]]
[[File:Pulsepickercontroller shortdelaymode.jpg|150px|thumb|right|Pulse picker controller in short delay mode]]
# Check how the beam path is set.
# If it is not set in the way that the required output passes through the pulse picker, the current setup has to be changed.
# Using two mirrors rotate the beam path such that it enters the pulse picker.
# There are two possible configurations-long delay(gated mode) and short delay
# In case long delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Set the required frequency on the external function generator
## Connect the AUX OUT port of the function generator to the EXT. TRIGGER of the pulse picker controller.
## Connect the MAIN OUT 50 ohm port of the function generator to the input port of the delay generator.
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the function generator, pulse picker controller and delay generator
## Set the trigger mode to "gate"
# If short delay mode is required,
## Connect the cable from the LASER controller to the SEED input of the pulse picker controller
## Connect PULSE MONITOR output of the pulse picker controller to the input port of the delay generator
## Connect the RF port to the pulse picker
## Pump the OPO
## Turn ON the delay generator and pulse picker controller
## Set the Division Ratio - the factor by which you want the LASER frequency to be divided
## Set the trigger mode to "internal"
# Press the button to turn ON the RF mode on the pulse picker controller
# You will see two spots in ON mode. A bright one corresponding to the 2nd order of diffraction of the crystal inside the pulse picker and and a less intense one corresponding to the first order of diffraction.
# The beam causing the dim spot should be blocked using one of the irises, so that it doesn't reach the sample.
# Check if there is sufficient contrast between ON and OFF modes of RF using a detector card.
# If not, contact an authorized user for help to adjust the pulse picker.
# Using three mirrors, rotate and align the beam path such that it enters the irises already fixed on the table.
# Fine tune the alignment by following the steps given in the previous section.
# Adjust the last mirror before the beam hits the sample and the sample stage, so that the beam hits the sample.
# A long pass filer is put before the side slit of the streak camera to block out the incident light. Ensure that it is of the correct wavelength.

=== Setting up the Streak Camera ===
[[File:CoolingSystem streakcamera.jpg|100px|thumb|right|Cooling System for Streak Camera]]
[[File:Micrometer for streak camera slit.jpg|100px|thumb|right|Micrometer to control the slit-opening of the streak camera]]
[[File:Power suppplies.jpg|150px|thumb|right|Power Supply Units]]
# Ensure there is enough water in the chiller.
# To turn on the chiller, first press the black switches on both units. This already starts the cooling of the bath. The display on the top unit shows first a temperature and after few seconds, OFF is displayed.
# Give a long press on the OK button (below the display and to the right of the up and down arrows) and the display will show the coolant temperature. This starts the circulation pump and the heater. See image.
# Make sure that the slit before the streak camera is set to zero (fully closed). See image.
# Switch on the computer.
# There are two possible modes. Make the connections according to the mode required.

==== Synchroscan Mode ====
* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the synchroscan unit M10911, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the synchroscan unit M10911 into the streak camera and lock it by turning the black knob
* Connect the SYNC IN and REF OUT cables to the unit. These cables come from the synchroscan delay unit kept on the rack above and are labelled.
* Connect the output of the syncing device controller to the synchroscan delay unit.
* Turn ON the power supplies for the streak camera, monochromator, delay unit for synchroscan, and the power supply for the syncing device which is used to detect the LASER frequency.
* Turn ON the camera by moving the ON/OFF slider

==== Slow Single Sweep Mode ====

* Check which unit is loaded into the Hamamatsu Universal Streak Camera
* If it is not the slow single sweep unit M10913, it has to be changed
* Turn the black knob on the right side of the streak camera to release the lock of the unit while supporting it with one hand.
* Carefully pull out the unit with both hands and keep it back in its designated cabinet
* Carefully, load the slow single sweep unit unit M10913 into the streak camera and lock it by turning the black knob
* Connect the output (AB) of the external delay generator to the TRIG IN port of the slow single sweep unit
* Turn ON the power supplies for the streak camera and the monochromator
* Turn ON the camera by moving the ON/OFF slider

== Measurement ==
[[File:Streakcamera focus mode.png|300px|thumb|right|Streak Camera Software HPDTA - showing streak camera in focus mode]]

# Turn on the software HPDTA on the computer by Hamamatsu.
# In the software, open live video and click auto-scale (star button at the bottom right of the LUT control window). A green streak will be visible at the center, this is because the cooling is not yet turned on in the software.
# Turn Cooling ON in the streak camera control palette on the left and you can see the streak vanishing.
# Make sure that the proper filter is mounted just beore the side slit of the streak camera
# Set the central wavelength in the monochromator control palette
# Select the required grating( 200g/mm, 100g/mm and 50g/mm) in the monochromator control palette. Choose 50g/mm if you want a large range and choose 200g/mm if you want a greater resolution
# Also set the required timescale in the streak camera palette
# Turn OFF the lights in the lab as the streak camera measurements are sensitive
# By default, the camera will be in Focus mode, if it is not change the Mode to Focus
# Open the photocathode opening slowly upto 20mm. If necessary go upto 40, but never more than that.
# Open the shutter by clicking on the respective button in the software
# Start increasing the gain from 0 to see the emission on the streak camera. Do not let the gain exceed 20 in focus mode
# Adjust the mirror reflecting light on the sample vertically and horizontally to get maximum signal with minimum gain
# The sample position can also be adjusted, if it aids in bringing in more emitted light to the streak camera
# Also the width of the side slit of the streak camera ( max 3000mm) can be adjusted to gather more emitted light
# Set the appropriate timescale and gain in the control palette.
# In the software control palette, change the Streak Camera Mode from 'Focus' to 'Operate'. Click auto-scale in the live video window.
# Find zero time by adjusting the delay in the delay generator control palette
# Adjust the timescale,delay, gain and photocathode opening for the optimal measurement.
# Freeze the live video
# Select Analog integration tab in the same window and set integration time and number of exposures and get the result of the integration
# Save the data.
# In case the detected light is very weak, you will have to use photon counting mode. For this select photon counting tab instead of analog integration.
# Select a rectangle as the ROI in the brightest part of the spectrum for checking whether the measurement will be accurate.
# The percentage of hits should be less than 5%.

== Shutdown Procedure ==

# Make sure you have saved all the data required.
# Close the photocathode opening.
# Close the shutter of the streak camera using the software
# Turn OFF the output of the CHAMELEON COMPACT OPO-VIS using the tablet.
# Turn OFF the software and the streak camera.
# Turn ON the lights
# Press the shutter button of the LASER to close the shutter.
# Turn Ti:Sa LASER key to Standby
# Turn OFF the delay generator, function generator and pulse picker(if used)
# Turn OFF the computer.
# Wait for 20 minutes to turn off the chiller. Press OK key first (turns off pump and heater), then the black switches (turns off cooling). If you only turn off the pump you'll completely freeze the bath water, which takes around three days to melt unassisted.

[[Category:Geräte - Devices]]
[[Category:Prüfmittel - Measuring Equipment]]
[[Category:F&E4]]
[[Category:AMOS]]