Optical characterisation of biological nano-porous silica structures

L. De Stefano; M. De Stefano; I. Rea; L. Moretti; A. Bismuto; P. Maddalena; I. Rendina

doi:10.1117/12.619450

12 September 2005 Optical characterisation of biological nano-porous silica structures

L. De Stefano, M. De Stefano, I. Rea, L. Moretti, A. Bismuto, P. Maddalena, I. Rendina

Proceedings Volume 5925, Nanophotonic Materials and Systems II; 59250S (2005) https://doi.org/10.1117/12.619450
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

It is well known by far that biological organisms could exhibit sophisticated optical system, which compete or overcame the top technology products available. The diatoms are microscopic algae enclosed in intricate amorphous silica cells, called frustules. In this work the optical reflectivity data, infrared spectroscopy, scanning electron microscopy and photoluminescence (PL) characterizations are presented for silica shells of Coscinodiscus wailesii, which is a centric diatom characterized from a diameter that varies in the range between 100 and 500 μm. Preliminary results suggest that the Coscinodiscus wailesii can be used as photonic material and sensor transducer.

Citation Download Citation

L. De Stefano, M. De Stefano, I. Rea, L. Moretti, A. Bismuto, P. Maddalena, and I. Rendina "Optical characterisation of biological nano-porous silica structures", Proc. SPIE 5925, Nanophotonic Materials and Systems II, 59250S (12 September 2005); https://doi.org/10.1117/12.619450

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