Electro-optics of bipolar nematic liquid crystal droplets -: art. no. 105503

被引：57

作者：

Fernández-Nieves, A ^{[1
]}

Link, DR

Rudhardt, D

Weitz, DA

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Harvard Univ, DEAS, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 10期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1103/PhysRevLett.92.105503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We directly visualize the response and relaxation dynamics of bipolar nematic liquid crystal droplets to an applied electric field E. Despite strong planar anchoring, there is no critical field for switching. Instead, upon application of E, the surface region first reorients, followed by movement of the disclinations and the bipolar axis. After removing E, elastic forces restore the drop to its original state. The collective electro-optic properties of ordered hexagonal-close-packed monolayers of drops are probed by diffraction experiments confirming the proposed switching mechanism.

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页码：105503 / 1

页数：4

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