Multiple scattering effects in polymer dispersed liquid crystals
作者:
J.R. Kelly,
Wei Wu,
期刊:
Liquid Crystals
(Taylor Available online 1993)
卷期:
Volume 14,
issue 6
页码: 1683-1694
ISSN:0267-8292
年代: 1993
DOI:10.1080/02678299308027708
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We have measured the angular distribution of light scattered from PDLC films with micron-sized droplets as a function of film thickness and applied voltage. We find that a single scattering picture does not give a good description of the observed scattered intensity. In particular, the intensity falls off much more weakly with scattering angle than one would predict from the anomalous diffraction cross-section calculated by Zumer. We present a simple model for describing double and higher order scattering events that gives a better quantitative description of the experimental observations. The model can be combined with a model for the switching behaviour of PDLC films to describe the scattering as a function of the applied voltage.
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