| Autor: |
Hsu, Shih-Hsin, Paoletti, Camille, Torres, Moacir, Ritchie, Raymond J., Larkum, Anthony W. D., Grillet, Christian |
| Zdroj: |
Proceedings of SPIE; March 2012, Vol. 8339 Issue: 1 p83390F-83390F-8, 750519p |
| Abstrakt: |
The results of a detailed investigation of light transmission behavior of a centric marine diatom species Coscinodiscus wailesiiare reported. We measured 3-dimentional intensity distributions of both broadband and monochromatic light transmitted through individual valves of the diatom in air and water. Cross-sectional intensity profiles of transmitted light indicates valves of C. wailesiican concentrate light into certain regions. At a distance from the valve shorter than its diameter, light intensities close to the optical axis are relatively higher than those in the surrounds; at a longer distance, transmitted light intensities display ring-shaped profiles. The distance showing this light concentration characteristic becomes shorter as the wavelength of incoming light goes up. These results may offer insight into the understanding of biological functions of diatom frustules' intricate structures and inspire new optical biomimetic applications. |
| Databáze: |
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