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Proceedings Paper

Intracavity laser absorption spectroscopy using mid-IR quantum cascade laser
Author(s): G. Medhi; A. V. Muravjov; H. Saxena; C. J. Fredricksen; T. Brusentsova; R. E. Peale; O. Edwards
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Paper Abstract

Intracavity Laser Absorption Spectroscopy (ICLAS) at IR wavelengths offers an opportunity for spectral sensing with sufficient sensitivity to detect vapors of low vapor pressure compounds such as explosives. Reported here are key enabling technologies for this approach, including multi-mode external-cavity quantum cascade lasers and a scanning Fabry-Perot spectrometer to analyze the laser mode spectrum in the presence of a molecular intracavity absorber. Reported also is the design of a compact integrated data acquisition and control system. Applications include military and commercial sensing for threat compounds, chemical gases, biological aerosols, drugs, and banned or invasive plants or animals, bio-medical breath analysis, and terrestrial or planetary atmosphere science.

Paper Details

Date Published: 12 May 2011
PDF: 7 pages
Proc. SPIE 8032, Next-Generation Spectroscopic Technologies IV, 80320E (12 May 2011); doi: 10.1117/12.883331
Show Author Affiliations
G. Medhi, Univ. of Central Florida (United States)
A. V. Muravjov, Zyberwear, Inc. (United States)
H. Saxena, Zyberwear, Inc. (United States)
C. J. Fredricksen, Univ. of Central Florida (United States)
T. Brusentsova, Univ. of Central Florida (United States)
R. E. Peale, Univ. of Central Florida (United States)
O. Edwards, Zyberwear, Inc. (United States)

Published in SPIE Proceedings Vol. 8032:
Next-Generation Spectroscopic Technologies IV
Mark A. Druy; Richard A. Crocombe, Editor(s)

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