Quartz-enhanced photoacoustic spectroscopy (QEPAS) was combined with a wavelength-programmable near-IR tunable laser source to realize a compact prototype chemical gas sensor for multi-species analysis. The best QEPAS sensitivity achieved to date is /spl sim/4/spl times/10/sup -8/ cm/sup -1/ W//spl radic/Hz.


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    Title :

    Multi-species QEPAS based gas sensing using a wavelength-programmable diode laser source


    Contributors:
    Kosterev, A.A. (author) / Weidmann, D. (author) / Tittel, F.K. (author) / Walsh, O. (author) / McDonald, D. (author) / Dunne, J. (author)


    Publication date :

    2004-01-01


    Size :

    137440 byte



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English