Other
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrva..80b2703d&link_type=abstract
Physical Review A, vol. 80, Issue 2, id. 022703
Other
5
Other Topics In Atomic And Molecular Collision Processes And Interactions, Raman And Rayleigh Spectra, Photon Interactions With Molecules, Atomic And Molecular Data, Spectra, And Spectral Parameters
Scientific paper
We report the long-overdue collision-induced Raman scattering spectrum by a pair of unlike rare gas atoms. Absolute-unit scattering intensities, both isotropic and anisotropic, are given for Ne-Ar, along with the depolarization ratio for this system, recorded by a gaseous room-temperature mixture over a wide range of frequency shift. We make a critical comparison with spectra computed quantum-mechanically on the basis of modern pair-polarizability representations for Ne-Ar, of either ab initio or density functional theory methods. We report a value for the Kerr second virial coefficient, deduced from our measurements. Our data are especially intended to add to the vital yet hitherto incomplete knowledge of the role of collision-induced processes in atmospheric environments.
Chrysos M.
Dixneuf Sophie
Rachet F.
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