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18 May 2017 ECQCL developments for rapid standoff chemical sensing
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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.
Conference Presentation
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Mark C. Phillips and Brian E. Brumfield "ECQCL developments for rapid standoff chemical sensing", Proc. SPIE 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX, 101942T (18 May 2017); https://doi.org/10.1117/12.2263701
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