Bipolar Nematic Droplets with Rigidly Fixed Poles in the Electric Field
作者:
Alexander Shabanov,
Vladimir Presnyakov,
Victor Zyryanov,
Stephen Vetrov,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1998)
卷期:
Volume 321,
issue 1
页码: 245-258
ISSN:1058-725X
年代: 1998
DOI:10.1080/10587259808025091
出版商: Taylor & Francis Group
关键词: polymer dispersed liquid crystals;nematics
数据来源: Taylor
摘要:
We have studied theoretically the reorientation process induced by the electric field inside a bipolar nematic droplet with rigidly fixed poles. Computer simulation has revealed the threshold director reorientation only in that part of a droplet, where the LC director is orthogonal to the applied field, and the nonthreshold reorientation in the rest of the droplet volume. A formula has been proposed to estimate the threshold field. The data obtained have allowed us to calculate a PDLC film transmittance in the framework of the anomalous diffraction approach and to interpret the oscillating behavior of the volt-contrast curve observed experimentally.
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