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Conferences > Sensors > 2013 > SM4C > SM4C.2

Waveguide Evanescent Field Spectroscopy of Trace Gases

Todd H. Stievater, Marcel W. Pruessner, Scott Holmstrom, Doewon Park, William S. Rabinovich, R. Andrew McGill, and Jacob B. Khurgin

Open Access Open Access

Abstract

We detect trace gases at ppb levels using evanescent-field absorption spectroscopy in microring resonators coated with sorbent polymers. The overtone spectra derive from mid-infrared resonances that provide a signature of analyte toxicity.

© 2013 Optical Society of America

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