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Proceedings Paper

ECQCL developments for rapid standoff chemical sensing
Author(s): Mark C. Phillips; Brian E. Brumfield
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Paper Abstract

We present recent results on development of swept external cavity quantum cascade lasers (ECQCLs) for rapid and precise measurements of trace gases. Rapid tuning of a swept-ECQCL over its entire tuning range at rates up to 100 Hz and a spectral resolution of <0.2 cm-1 provides an important capability for detection of gas mixtures in transient sources such as chemical plumes. We present examples of using the swept-ECQCL for quantitative measurements of multicomponent gas-phase mixtures in turbulent plumes for standoff detection applications.

Paper Details

Date Published: 18 May 2017
PDF: 9 pages
Proc. SPIE 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX, 101942T (18 May 2017); doi: 10.1117/12.2263701
Show Author Affiliations
Mark C. Phillips, Pacific Northwest National Lab. (United States)
Brian E. Brumfield, Pacific Northwest National Lab. (United States)


Published in SPIE Proceedings Vol. 10194:
Micro- and Nanotechnology Sensors, Systems, and Applications IX
Thomas George; Achyut K. Dutta; M. Saif Islam, Editor(s)

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