Pretransition phenomena in cholesterics with a short helix pitch
Kizel' V. A., Panin S. I.
A method of circular dichroism has been used to study a cholesteric liquid crystal near the transition from the blue phase to an isotropic liquid and in the region in which this liquid is superheated. Pronounced fluctuations are observed within about 1 °C of the transition point. They contribute to a "structural" circular dichroism. Their spectrum and temperature dependence have been measured.
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![](/ps/1374/article_20818_800_head.png "A method of circular dichroism has been used to study a cholesteric liquid crystal near the transition from the blue phase to an isotropic liquid and in the region in which this liquid is superheated. Pronounced fluctuations are observed within about 1 °C of the transition point. They contribute to a "structural" circular dichroism. Their spectrum and temperature dependence have been measured.")