Hydrodynamic correlation functions in nematic liquid crystals. Propagating modes

Autor:	William G. Laidlaw, Hendrick N. W. Lekkerkerker, Debra L. Carle
Rok vydání:	1978
Předmět:	Condensed Matter::Soft Condensed Matter Brillouin zone Physics Coupling constant Condensed matter physics Liquid crystal Spectrum (functional analysis) Angular dependence Light scattering Intensity (heat transfer)
Zdroj:	Journal of the Chemical Society, Faraday Transactions 2. 74:1158
ISSN:	0300-9238
DOI:	10.1039/f29787401158
Popis:	The spectral densities of nematic liquid crystals are calculated in the hydrodynamic limit with particular reference to those spectral densities that play a role in the Brillouin lines of the light scattering spectrum. It is found that the contribution of the mixed pressure-director fluctuations to the intensity of the Brillouin lines is comparable to that of the pure pressure fluctuations. Exploitation of this feature allows, in principle, the determination of the flow-director coupling constant from the angular dependence of the intensity of the Brillouin lines.
Databáze:	OpenAIRE
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