Abstract
Orientational and induced time-correlation functions, involved in the light scattering from fluids of small linear molecules, are studied in the short-time behaviour. The induced effects are evaluated within the dipole—induced-dipole (DID) mechanism. It is shown that the cross term cannot follow the short-time behaviour of the orientational dynamics. As a consequence, it is argued that the light scattered at the high frequency reflects the fluctuations of the gas-phase collective polarizability rather than the fluctuations of the liquid-phase effective polarizability.
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