A study of the mechanism of modified Rayleigh scattering has been attempted by more detailed considerations of the “moving mirror” model. A calculation has been made which yields the order of magnitude of the amplitude of the hypersonic waves in liquids. The small amplitude obtained is used to explain the persistence of the modified Brillouin components in glycerine when the macroscopic viscosity is so high that the hypersonic vibrations should no longer be propagated according to the classical hydrodynamic equations.
D. H. RANK and J. P. MCKELVEY, "A Study of the Mechanism of Modified Rayleigh Scattering," J. Opt. Soc. Am. 39, 762-765 (1949)