Regensburg 2004 – scientific programme

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HL: Halbleiterphysik

HL 15: Photonische Kristalle III

HL 15.1: Talk

Tuesday, March 9, 2004, 10:15–10:30, H17

Dye functionalization of living photonic crystals — •Thomas Fuhrmann, Stefan Landwehr, and Melanie El Rharbi-Kucki — Makromolekulare Chemie und Molekulare Materialien, Fachbereich Naturwissenschaften und Center for Interdisciplinary Nanostructure Science and Technology, Universität Kassel

Biological structures offer a convenient way for producing photonic crystals. The silica cell wall of centric diatoms can be regarded as hexagonal and quadratic slab waveguide photonic crystals with partial bandgaps in the visible spectral range. In order to address the question how absorption and emission of light is influenced in these structures, organic dyes have to implemented into the cell wall. We demonstrate some techniques of dye functionalization with laser dyes, including a chemical as well as a biological approach. This project is part of the DFG priority program on photonic crystals.