Abstract
The study of the inelastic scattering of light from the liquid-solid interface can serve as a useful probe of dynamics in the liquid, in the near vicinity of the interface. As an example, we consider the scattering produced by orientational fluctuations in liquid crystals near an interface, where the first layer of molecules is pinned rigidly in place. We develop a theoretical description of orientational fluctuations near such a pinned layer, with emphasis on the temperature regime near the phase transition from the isotropic to the nematic phase. We present theoretical predictions for the shape and integrated intensity of the contribution to the central peak from the orientational fluctuations, for a backscattering geometry described in the text.
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