Fine-structure-resolved collisional broadening in the Schumann-Runge bands of O2.

Details Fine-structure-resolved collisional broadening in the Schumann-Runge bands of O2. Fine-structure-resolved collisional broadening in the Schumann-Runge bands of O2.

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997jqsrt..58...93d&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 58, issue 1, pp. 93-100

Physics

2

Molecular Oxygen: Line Broadening

Scientific paper

Collisional self-broadening and shift coefficients are presented for selected fine structure resolved rotational lines from the B3Σ-u←X3Σg-(υ',1) bands of O2. The coefficients were derived from high-resolution photoabsorption cross-sections measured using the tuneable, narrow-bandwidth, vacuum-ultraviolet radiation generated by the two-photon-resonant difference-frequency four-wave mixing of excimer-pumped dye-laser radiation in Xe. The results, obtained at room temperature and at pressures of less than 800 torr, are consistent with previous results derived from medium-resolution measurements of the (υ',0) bands at much higher pressures.

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