Optical unwinding and reentrance phenomena in chiral smectic-C liquid crystals
作者:
Shu-Hsia Chen,
Ching-Yih Chen,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 16
页码: 1975-1977
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.121264
出版商: AIP
数据来源: AIP
摘要:
We optically measure the molecular reorientation induced by an argon laser in homeotropically aligned chiral smectic-C films. Optical unwinding of the helix is observed and the critical unwinding intensity is determined. We have also developed a theory which not only explains the observed effect but also predicts a novel reentrance phenomenon of the unwinding state. ©1998 American Institute of Physics.
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