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.


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    Title :

    Gas sensing with a 9 /spl mu/m thermoelectrically-cooled quasi-cw distributed feedback quantum cascade laser


    Contributors:
    Weidmann, D. (author) / Kosterev, A.A. (author) / Tittel, F.K. (author) / Aellen, T. (author) / Beck, M. (author) / Hofstetter, D. (author) / Faist, J. (author) / Blaser, S. (author)


    Publication date :

    2004-01-01


    Size :

    105398 byte



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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