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Proceedings Paper

Resonant photonic structures in porous silicon for biosensing
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Paper Abstract

The formation of resonant photonic structures in porous silicon leverages the benefit of high surface area for improved molecular capture that is characteristic of porous materials with the advantage of high detection sensitivity that is a feature of resonant optical devices. This review provides an overview of the biosensing capabilities of a variety of resonant porous silicon photonic structures including microcavities, Bloch surface waves, ring resonators, and annular Bragg resonators. Detection sensitivities > 1000 nm/RIU are achieved for small molecule detection. The challenge of detecting molecules that approach and exceed the pore diameter is also addressed.

Paper Details

Date Published: 23 February 2017
PDF: 10 pages
Proc. SPIE 10081, Frontiers in Biological Detection: From Nanosensors to Systems IX, 100810D (23 February 2017); doi: 10.1117/12.2256893
Show Author Affiliations
Yiliang Zhao, Vanderbilt Univ. (United States)
Gilberto A. Rodriguez, Vanderbilt Univ. (United States)
Yasmin M. Graham, Univ. of Maryland, Baltimore (United States)
Tengfei Cao, Vanderbilt Univ. (United States)
Girija Gaur, Vanderbilt Univ. (United States)
Sharon M. Weiss, Vanderbilt Univ. (United States)

Published in SPIE Proceedings Vol. 10081:
Frontiers in Biological Detection: From Nanosensors to Systems IX
Amos Danielli; Benjamin L. Miller; Sharon M. Weiss, Editor(s)

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