Other
Scientific paper
Nov 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrva..80e4701c&link_type=abstract
Physical Review A, vol. 80, Issue 5, id. 054701
Other
3
Other Topics In Atomic And Molecular Collision Processes And Interactions, Raman And Rayleigh Spectra, Photon Interactions With Molecules, Radiative Transfer, Scattering
Scientific paper
We report the anisotropic collision-induced scattering (CIS) spectrum of two neon atoms at room temperature. The covered spectral range hitherto restricted to 170cm-1 is here tripled. Both our measurements and quantum-mechanical calculations obtained on the basis of large-scale ab initio anisotropy representations reveal a well-defined saddle-shaped wing. This peculiar structure is experimental evidence of a binary CIS line shape with an aspect other than a smooth wing in a logarithmic plot. Equally interesting is the fact that this feature has been predicted (though only qualitatively) by the simple semiempirical model long ago reported by Meinander, Tabisz, and Zoppi [J. Chem. Phys. 84, 3005 (1986)], but no emphasis had at that time been placed on the aspect of the wing of the model spectrum probably due to the lack of high-frequency experimental data.
Chrysos M.
Dixneuf Sophie
Rachet F.
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