User:Radwanul.Siddique

	Bitte beachten: Dieser Benutzer ist nicht mehr am IMT angestellt. This user no longer works at IMT.

Radwanul Hasan Siddique

Group: F&E1-BSS

Research topic: Biomimetics, Bio-inspired photonic structures: FEM modeling, Fabrication and Characterization

Room: 229

Telephone: 24684

E-mail: radwanul.siddique@kit.edu

Webpage: http://www.imt.kit.edu/english/hoelscher.php

Job description

Fig.1: Sparkling blue irradiance of Morpho butterfly due to light interaction with Christmas tree like nanostructures.

Fig.2: Scattering of incident white light (TM plane waves) from Christmas tree like nanostructures of Blue Morpho butterflies.

I have been inspecting the optical active nanostructures on biomimic butterfly (Fig.1) scales theoretically using FEM simulation (Fig.2) and high resolution optical microscopy. Meantime, I am working on the fabrication of the scales to mimic all possible features of original butterfly structures.

Expertise

• Simulation: Matlab, COMSOL Multyphysics: RF Module
• Microscopy: TEM, AFM
• Lithography: Laser interference lithography

Equipment

• Optical Spectrometer: Perkin Elmer Lambda 900
  • Range: 200-3000 nm
  • Task: Measuring transmission, absorption and reflection spectra

More details will be given afterwards.

• AFM: Commercial
• TEM: Zeiss T109 (ITG)

Other task at IMT

• Current Doggiespeaker together with Kira Köhnle

Publications

• Journal:
  • Theoretical and experimental analysis of the structural pattern responsible for the iridescence of Morpho butterflies, R. H. Siddique, S. Diewald, J. Leuthold, and H. Hölscher, Optics Express 21, 14351 (2013).
• Conference:
  • Analysis and fabrication of optical active nanostructures inspired by the blue Morpho butterfly, R H. Siddique, S. Diewald, J. Leuthold and H. Hoelscher, European Conference on Lasers and Electro-Optics (CLEO) and XIIIth International Quantum Electronics Conference (Poster), 2013, Munich, Germany.
  • Mimicking the wide angular reflection of blue light from Morpho butterfly wings, Gordon Research Conference: Environmental Nanotechnology (Poster), 2013, Vermont, USA.