Calculation and analytical representation of self-pressure and air pressure broadening coefficients of ozone spectral lines

V. I. Starikov

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    The coefficients γ of broadening by self-pressure, and pressure of nitrogen, oxygen, and air are calculated for absorption lines of the rotational band and for the v2 band of the ozone molecule for temperatures 296, 252, and 212 K. The calculations are performed by the semiclassical method using rectilinear and exact trajectories for interacting molecules. It is shown that the experimental data obtained for the two bands at T = 296 K can be reconstructed better using different isotropic intermolecular interaction potentials. The experimental and calculated broadening coefficients of ozone absorption lines for the rotational band and for the v2 and v 1 + v3 vibrational bands were used to determine the parameters of an analytical model, which permits one to calculate γ in a wide range of rotational quantum numbers, 0 ≤ J ≤ 45, 0 ≤ Ka ≤ 20, and temperatures of 200-296 K.

    Original languageEnglish
    Pages (from-to)340-350
    Number of pages11
    JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
    Volume110
    Issue number3
    DOIs
    Publication statusPublished - Mar 2011

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics

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