Modern sub-terahertz (subTHz) spectrometers, based on coherent sources of radiation, the backward-wave oscillators (BWOs), are described which cover the frequencies V=1 cm/sup -1/-48 cm/sup -1/ (30-1450 GHz) and allow for measurements at temperatures 2-1000 K, also in magnetic fields. They allow for direct determination of spectra of any optical parameter of a material at millimeter-submillimeter wavelengths, the domain where infrared or microwave spectrometers encounter serious methodological difficulties. We report on new technical abilities of the quasioptical BWO-spectrometers and discuss their main components.


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    Title :

    Subterahertz BWO spectroscopy: methods and devices


    Contributors:
    Spektor, I. (author) / Anzin, V. (author) / Goncharov, Yu. (author) / Gorshunov, B. (author) / Gusev, G. (author) / Komandin, G. (author) / Lebedev, S. (author) / Volkov, A. (author)


    Publication date :

    2004-01-01


    Size :

    154958 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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