This study employs orientation-patterned GaAs as part of a broadly tunable, continuous-wave, difference frequency generation (DFG) source for ultra-trace gas detection applications. The DFG source forms the basis of a long-wave (8-12 /spl mu/m) infrared cavity ring-down spectrometer. The combined high sensitivity of cavity ring-down spectroscopy coupled with the broad tunability of the DFG source allows both identification and quantification of a broad range of species.


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    Title :

    Long-wave infrared chemical sensing based on orientation-patterned GaAs


    Contributors:
    Bisson, S.E. (author) / KuIp, T.J. (author) / Levi, O. (author) / Harris, J.S. (author) / Fejer, M.M. (author)


    Publication date :

    2004-01-01


    Size :

    190768 byte



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English