Vibrational dephasing effects and motional narrowing in the isotropic Raman Q branch of HD

https://doi.org/10.1016/0009-2614(78)80343-1Get rights and content

Abstract

Important motional narrowing has been previously experimentally observed by Dion and May in the isotropic Raman Q branch of pure gaseous HD in the fundamental vibrational band. A recent theoretical calculation of the present authors, in good agreement with these experiments, has shown that for pure HD only rotational mechanisms are efficient. In this paper, an infinite order treatment of the vibrational dephasing effects for HD perturbed by rare gases indicates an important role of these last effects in the broadening of the individual lines (particularly in the 0–2 band) leading to a significant decrease of the motional narrowing in the resulting band profile at high density.

References (18)

  • R.H. Tipping et al.

    J. Quant. Spectry. Radiative Transfer

    (1970)
  • J. Jarecki et al.

    J. Quant. Spectry. Radiative Transfer

    (1975)
  • J. Bonamy et al.

    J. Chem. Phys.

    (1977)
  • P. Dion et al.

    Can. J. Phys.

    (1973)
  • T. Witkowicz et al.

    Can. J. Phys.

    (1976)
  • M. Giraud et al.

    J. Chem. Phys.

    (1973)
  • P. Isnard et al.

    Mol. Phys.

    (1977)
  • T.A. Dillon et al.

    Phys. Rev.

    (1970)
  • R.M. Herman

    Phys. Rev.

    (1963)
There are more references available in the full text version of this article.

Cited by (0)

View full text