Fuhrmann, T. and Landwehr, S. and El Rharbi-Kucki, M. and Sumper, Manfred (2004) Diatoms as living photonic crystals. APPLIED PHYSICS B-LASERS AND OPTICS, 78 (3-4). pp. 257-260. ISSN 0946-2171, 1432-0649
Full text not available from this repository. (Request a copy)Abstract
We present an analysis of the optical structure of a representative diatom, Coscinodiscus granii. The silica cell wall can be regarded as a photonic crystal slab waveguide with moderate refractive-index contrast. In a cell, at least two different patterns are found: a hexagonal array of pores with a large lattice constant in the valve, and a square array of holes with a small lattice constant in the girdle. It is demonstrated that light can be coupled into the waveguide and that there are some photonic resonances in the visible spectral range, which have been determined by band-structure calculations.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BAND-STRUCTURE; LASERS; |
| Subjects: | 500 Science > 530 Physics 500 Science > 570 Life sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Biochemie, Genetik und Mikrobiologie > Alumni or Retired > Prof. Dr. Manfred Sumper |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Jul 2021 10:51 |
| Last Modified: | 22 Jul 2021 10:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38017 |
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