SURFACE-MEDIATED ELECTROCLINIC EFFECT IN A CHIRAL NEMATIC LIQUID-CRYSTAL

被引：7

作者：

CRANDALL, KA ^{[1
]}

TRIPATHI, S ^{[1
]}

ROSENBLATT, C ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV, DEPT MACROMOLEC SCI, CLEVELAND, OH 44106 USA

来源：

PHYSICAL REVIEW A | 1992年 / 46卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.46.R715

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical phase-shift measurements are reported for a homeotropically aligned chiral nematic liquid crystal subject to an applied ac electric field E. A change in phase shift linear in E was observed, with a characteristic relaxation time tau almost-equal-to s. The effect vanished for the nonchiral (racemic) version of the material. The data, taken together with the symmetry, are consistent with an electroclinic effect at the surface, such that the induced molecular tilt propagates elastically into the bulk.

引用

页码：R715 / R718

页数：4

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