Title :
Evanescent field absorption spectroscopy of trace gases using functionalized microring Resonators
Author :
Stievater, T.H. ; Pruessner, M.W. ; Park, DaeLim ; Rabinovich, W.S. ; McGill, R.A. ; Holmstrom, S.A. ; Khurgin, Jacob B.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
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.
Keywords :
gas sensors; infrared spectra; micro-optomechanical devices; micromechanical resonators; microsensors; optical polymers; spectrochemical analysis; analyte toxicity; coating; evanescent-field absorption spectroscopy; functionalized microring resonators; mid-infrared resonance; ppb levels; sorbent polymers; trace gases; Absorption; Gases; Optical resonators; Optical sensors; Optical surface waves; Optical waveguides; Plastics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
