High-resolution laser spectroscopy on condensed matter is usually considered to be beyond the reach because of the extreme broadening of both the homogeneous and inhomogeneous spectral linewidth. A marked exception to this general consensus is found in the rotation-vibration transitions in parahydrogen (p-H/sub 2/) crystals. The sharpest linewidth observed so far is 4 MHz (FWHM) of a transition of D/sub 2/ in the p-H/sub 2/ crystal. Because of the weak intermolecular interaction and a large intermolecular distance (3.783A), the rotational motion of molecules in the p-H/sub 2/ crystal is well quantized, and the rotational quantum number J remains as a good quantum number.


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    Title :

    High-resolution laser spectroscopy of solid hydrogen


    Contributors:
    Momose, T. (author)


    Publication date :

    1999-01-01


    Size :

    150307 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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