A compact, tabletop, high-resolution THz-wave spectrometer for trace gases was developed based on an injection-seeded THz-wave parametric generator. The chambers were purged with pure nitrogen gas to avoid strong absorption of THz-wave by water vapor. THz-wave spectra were measured over the wide frequency range of 0.8 to 2.4 THz with a resolution better than 100 MHz. Monitoring of sub-ppm H2O concentrations in real time was demonstrated.


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    Title :

    A high-resolution, wavelength-scanning, fast-data-acquisition THz-wave spectrometer for trace gases


    Contributors:


    Publication date :

    2006-09-01


    Size :

    1097127 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English