The shadowgraph method at the Fréedericksz transition
作者:
H. Richter,
S. Rasenat,
I. Rehberg,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1992)
卷期:
Volume 222,
issue 1
页码: 219-228
ISSN:1058-725X
年代: 1992
DOI:10.1080/15421409208048696
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A theoretical treatment of the light deflection of the extraordinary light beam in a nematic liquid crystal in the neighborhood of the Fréedericksz transition is presented. The analysis explains recent experimental observations of director fluctuations near the electrically driven splay Fréedericksz transition. As an application of this method, we propose the measurement of material parameters of a nematic liquid crystal via a spatio-temporal analysis of the measured light intensity.
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