Volume 98, Number 1, April 2012
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||05 April 2012|
Dispersion relations of director fluctuations along the direction perpendicular to the helical axis in cholesteric liquid crystals
Department of Physics, Graduate School of Science, Kyoto University - Kita-Shirakawa, Kyoto 606-8502, Japan
Accepted: 2 March 2012
We theoretically analyzed the dispersion relations of director fluctuations along the direction perpendicular to the helical axis in cholesteric liquid crystals, and experimentally verified the validity of the analysis by dynamic light scattering (DLS) measurement. It is found that the dispersion relations are well explained by two independent modes, which we call “splay-bend” and “undulation” modes.
PACS: 61.30.-v – Liquid crystals / 42.70.Df – Liquid crystals / 78.35.+c – Brillouin and Rayleigh scattering; other light scattering
© EPLA, 2012
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