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Proceedings Paper

Waveguide-enhanced Raman scattering for chemical sensing (Conference Presentation)
Author(s): Scott A. Holmstrom; Todd H. Stievater; Dmitry A. Kozak; R. Andrew McGill
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Paper Abstract

We will review the state of the art for on-chip, Raman-based sensing using waveguides including our recent work with sorbent-coated waveguides for trace gas sensing showing parts-per-billion limits of detection. We will show that signal enhancements due to scattering that takes place in the evanescent field coupled with a thin hypersorbent polymer coating can yield Raman efficiencies which are nine orders of magnitude larger than traditional micro-Raman techniques. We will also discuss challenges with gas component discrimination and in moving toward a fully integrated photonic circuit architecture for handheld Raman-based trace gas sensors.

Paper Details

Date Published: 28 April 2017
PDF: 1 pages
Proc. SPIE 10110, Photonic Instrumentation Engineering IV, 101100Y (28 April 2017); doi: 10.1117/12.2252792
Show Author Affiliations
Scott A. Holmstrom, The Univ. of Tulsa (United States)
Todd H. Stievater, U.S. Naval Research Lab. (United States)
Dmitry A. Kozak, U.S. Naval Research Lab. (United States)
R. Andrew McGill, U.S. Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 10110:
Photonic Instrumentation Engineering IV
Yakov G. Soskind; Craig Olson, Editor(s)

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