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Conference Paper
Laser Applications to Chemical and Environmental Analysis
Annapolis, Maryland United States
February 9, 2004
ISBN: 1-55752-765-2
Environmental II (WA)

Ultra-sensitive ambient trace-gas sensor using CO2 lasers and photoacoustic spectroscopy

Michael B. Pushkarsky, Michael E. Webber, and C. Kumar N. Patel

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Abstract

An ambient trace-gas sensor based on photoacoustic spectroscopy and CO2 lasers has been developed with a minimum detectivity for ammonia better than 50 parts-per-trillion. This sensor has been deployed in an intercomparison with ion chromatography.

© 2004 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3940) Instrumentation, measurement, and metrology : Metrology
(300.0300) Spectroscopy : Spectroscopy
(300.6430) Spectroscopy : Spectroscopy, photothermal

Citation
M. B. Pushkarsky, M. E. Webber, and C. K. N. Patel, "Ultra-sensitive ambient trace-gas sensor using CO2 lasers and photoacoustic spectroscopy," in Laser Applications to Chemical and Environmental Analysis, Technical Digest (Optical Society of America, 2004), paper WA2.
http://www.opticsinfobase.org/abstract.cfm?URI=LACEA-2004-WA2


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