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Title: Multipolar polarizations of methane from isotropic and anisotropic collision-induced light scattering

Journal Article · · Physical Review. A
;  [1]; ;  [2]
  1. Nonlinear Optics Division, Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznan (Poland)
  2. Laboratoire des Proprietes Optiques des Materiaux et Applications, Universite d'Angers, 2 boulevard Lavoisier, 49045 Angers (France)

The anisotropic and isotropic binary collision-induced spectra scattered by gaseous methane have been measured in absolute units up to 900 cm{sup -1} from the Rayleigh line. Corresponding theoretical intensities taking into account multipolar polarizabilities have been calculated using a semiclassical procedure. From the analysis of, mainly, our isotropic scattering data, values of the dipole-quadrupole and dipole-octopole polarizabilities are deduced. They are found to be in good agreement with recent ab initio calculations.

OSTI ID:
20643758
Journal Information:
Physical Review. A, Vol. 69, Issue 6; Other Information: DOI: 10.1103/PhysRevA.69.062704; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English