Abstract
The coupling of the rotational dynamics of anisotropic molecules to longitudinalphonons gives rise to different effects in the interaction of light with supercooledliquids formed of such molecules. One is the opening of new light scatteringchannels in Brillouin scattering; this can alter the corresponding phononlineshape. Another one is the possible appearance of a depolarized signalin transient grating experiments (TG), also called impulsive stimulatedscattering. We give a brief theoretical description of these two effects forsupercooled liquids formed of linear rigid molecules. We also present preliminaryresults on the analysis of such a TG experiment performed on m-toluidine.
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