A compact trace gas sensor based on a thermoelectrically cooled quasi CW quantum cascade laser is reported. Direct absorption of SO/sub 2/ was used for laser characterization. 2f wavelength modulation spectroscopy was applied to ammonia monitoring.
Gas sensing with a 9 /spl mu/m thermoelectrically-cooled quasi-cw distributed feedback quantum cascade laser
Conference on Lasers and Electro-Optics, 2004. (CLEO). ; 1 ; 1 pp. vol.1
2004-01-01
105398 byte
Conference paper
Electronic Resource
English
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