Journal
OPTICS LETTERS
Volume 37, Issue 13, Pages 2664-2666Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.37.002664
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- Battelle Memorial Institute [DE-AC05-76RLO1830]
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We demonstrate a technique for gas phase spectroscopy and sensing by detecting changes in compliance voltage of an external cavity quantum cascade laser due to intracavity absorption. The technique is characterized and used to measure the absorption spectrum of water vapor and Freon-134a. (C) 2012 Optical Society of America
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