Abstract

A high-pressure oxygen cell has been used to generate vibrational stimulated Raman scattering, using a Q-switched laser. Peak first-Stokes conversion efficiencies of 6% are reported, and direct use of the cell output for stimulated Raman pumping of oxygen in room air to the first vibrationally excited level is demonstrated. Coherent anti-Stokes Raman spectroscopy is used to study the density dependence of the 298-K Q-branch line shape in the 5–31-amagat range, with the results compared with spectral models that incorporate the effects of intermolecular rotational energy transfer.

© 1990 Optical Society of America

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