Collision-induced scattering at a vibrational Raman frequency

Journal Article · Mon May 01 04:00:00 EDT 1978 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.17.1729· OSTI ID:6842761

Duff, Y L; Gharbi, A

Experimental data on collision-induced scattering in the frequency range of the vibrational Raman band ..nu../sub 1/ of CF/sub 4/ up to 280 amagat at 296 /sup 0/K are discussed within the framework of dipole induced dipole (DID) approximation using computer calculations and previous Rayleigh results for the same molecule. Satisfactory agreement between theoretical and experimental results is obtained for the low-frequency line shape at low densities and for the density dependence of the integrated intensity. However, the point-dipole DID approximation in its present form is unable to describe exactly either the whole detailed line shape or the absolute value of the integrated depolarization factor. The different influences of the three- and four-body interactions are discussed for Rayleigh and Raman scattering.

• Research Organization: Departement des Recherches Physiques, Laboratoire associe au Centre National de la Recherche Scientifique, Universite Pierre et Marie Curie, Tour 22, 4 Place Jussieu, 75230 Paris Cedex 05, France
• OSTI ID: 6842761
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 17:5; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
ELECTRICAL PROPERTIES
ENERGY LEVELS
EXCITED STATES
MOLECULE COLLISIONS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
POLARIZABILITY
RAMAN EFFECT
VIBRATIONAL STATES