Calculation and simulation of absorption line broadening in water vapor by noble gas atoms

A. E. Protasevich, V. I. Starikov

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Semiclassical methods have been applied to calculate the collisional broadening of water vapor absorption lines by noble gas atoms (Ar, He, Ne, and Kr). An analytical model has been proposed for line half-widths. The model parameters have been determined for the V2 band of the H2O molecule for all the buffer gases under consideration, as well as for the bands 3V1 + v3 and 2v1 + 2v2 + V 3 in the case of the broadening by argon. In the latter case, the model parameters that determine the temperature dependence of the half-widths of the water vapor lines of the v2 band have been found. The model proposed describes well the known experimental data and permits a relatively simple calculation of the H2O line half-widths for the bands and the buffer gases under consideration in a wide range of rotational quantum numbers. For the v2 band, the model calculations in the case of the broadening by argon can be performed up to temperatures of 2500 K.

    Original languageEnglish
    Pages (from-to)528-534
    Number of pages7
    JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
    Volume98
    Issue number4
    DOIs
    Publication statusPublished - Apr 2005

    Fingerprint

    Noble Gases
    Steam
    Inert gases
    Water vapor
    water vapor
    rare gases
    Atoms
    Argon
    atoms
    Buffers
    simulation
    Gases
    buffers
    argon
    Analytical models
    gases
    quantum numbers
    Temperature
    Molecules
    temperature dependence

    ASJC Scopus subject areas

    • Spectroscopy
    • Atomic and Molecular Physics, and Optics

    Cite this

    Calculation and simulation of absorption line broadening in water vapor by noble gas atoms. / Protasevich, A. E.; Starikov, V. I.

    In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 98, No. 4, 04.2005, p. 528-534.

    Research output: Contribution to journalArticle

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