Condensed Matter Physics, 2006, vol. 9, No. 1(45), p. 37-45, English
1.5-multiplicity molecular light scattering in fluids?
(Odesa Mechnikov University, 2 Dvoryanska St., Odesa
The third-order thermodynamic moment of the density fluctuations
is shown to contribute notably to the molecular light scattering
in a single-component fluid. The relevant 1.5-scattering is
expected to affect the depolarization ratio of the scattered light
as the scattering is studied near the critical isochore and for
the temperature interval where nonlocal correlation between
fluctuations is relatively weak. The
experimental data in support of this conclusion are quoted.
Key words: density fluctuations, third moment, light scattering
PACS: 05.40, 05.70.Fh, 64.70.Fx, 78.35.+c