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Proceedings Paper

Colorimetric resonant detection of biochemical agents in mesoporous silicon-based photonic crystals
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Paper Abstract

A colorimetric resonant mesoporous silicon photonic crystal is used as a surface binding platform for biochemical detection. The photonic crystal, when illuminated with white light at normal incidence, is designed to reflect a photonic band gap (PBG) centered at a single wavelength. When molecules are attached to the internal surfaces of pores, the PBG is shifted due to the change in refractive index of the porous silicon layers. The planar structure of the platform can be easily integrated into a fluidic cell. We have optically verified the presence of proteins and chemicals as a colorimetric shift in the reflectivity spectrum of mesoporous silicon photonic crystals and microcavities.

Paper Details

Date Published: 1 February 2012
PDF: 6 pages
Proc. SPIE 8264, Integrated Optics: Devices, Materials, and Technologies XVI, 82641L (1 February 2012); doi: 10.1117/12.910576
Show Author Affiliations
I. A. Kolmychek, Lomonosov Moscow State Univ. (Russian Federation)
S. E. Svyakhovskiy, Lomonosov Moscow State Univ. (Russian Federation)
T. V. Murzina, Lomonosov Moscow State Univ. (Russian Federation)
F. Baldini, Istituto di Fisica Applicata Nello Carrara (Italy)
G. Ghini, Istituto di Fisica Applicata Nello Carrara (Italy)
A. Giannetti, Istituto di Fisica Applicata Nello Carrara (Italy)
C. Trono, Istituto di Fisica Applicata Nello Carrara (Italy)
G. Nunzi Conti, Istituto di Fisica Applicata Nello Carrara (Italy)
S. Soria, Istituto di Fisica Applicata Nello Carrara (Italy)


Published in SPIE Proceedings Vol. 8264:
Integrated Optics: Devices, Materials, and Technologies XVI
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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