Abstract

Resume Rotational Raman spectra of O2 has been recorded at room temperature and 1 to 15 atmospheres with a spectral resolution of 0.2 cm-1. At low densities, the intensities and positions of the satellites of the Rayleigh and S(N) lines (N = 1,3,5,7) has been measured and found in good agreement with calculations of Altmann et al. except for the Rayleigh line. The pressure broadening of the spectral profile of the S(1) triplet has been investigated. We show that, even at 15 atm. where the three lines strongly overlap, this triplet can be fitted by three lorentzian curves, the self broadening coefficient of which is found equal to 5.5 × 10-2 cm-1/amagat.

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