Measurements and calculations of Ar-broadening and -shifting parameters of water vapor transitions of ν123 band

T. M. Petrova, A. M. Solodov, A. A. Solodov, V. I. Starikov

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    7 Citations (Scopus)

    Abstract

    The water vapor line broadening and shifting for 94 lines in the ν123 band induced by argon pressure are measured with Bruker IFS 125 HR FTIR spectrometer. The measurements were performed at room temperature, at the spectral resolution of 0.01cm-1 and in a wide pressure range of Ar. The calculations of the broadening coefficients γ and δ were performed in the framework of the semi-classical method. The intermolecular potential was taken as the sum of pair potentials which, in turn, were modeled by the Lennard-Jones potentials. Optimal sets of potential parameters given the best discrepancy of measured broadening coefficients are found. The influence of the rotational dependence of an intermolecular potential and its repulsive part on the calculated coefficients γ and δ is discussed.

    Original languageEnglish
    Pages (from-to)116-126
    Number of pages11
    JournalJournal of Quantitative Spectroscopy and Radiative Transfer
    Volume148
    DOIs
    Publication statusPublished - 1 Jan 2014

    Keywords

    • Fourier transform spectroscopy
    • Intermolecular potential
    • Line broadening and shift coefficients
    • Semi-classical method

    ASJC Scopus subject areas

    • Radiation
    • Atomic and Molecular Physics, and Optics
    • Spectroscopy

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