The alignment of a liquid crystal in the smectic A phase in a high surface tilt cell
作者:
S.J. Elston,
期刊:
Liquid Crystals
(Taylor Available online 1994)
卷期:
Volume 16,
issue 1
页码: 151-157
ISSN:0267-8292
年代: 1994
DOI:10.1080/02678299408036528
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Liquid crystal alignment is studied using propagating optical mode techniques for a cell with a high surface tilt SiO alignment. The director configuration is determined for both the nematic and smectic A phases. In the nematic phase a uniform splay across the cell is demonstrated, as predicted by continuum theory. In the smectic A phase the structure is seen to be nearly uniform in the central region of the cell with large splay in boundary layers of about 0.5 μm thickness. The reason for this appears to be competition between the tilted surface alignment forces and internal forces within the bulk of the smectic A layer which would induce a homogeneous configuration.
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