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Nematic liquid-crystal polarization gratings by modification of surface alignment

✍ Scribed by Wen, Bing ;Petschek, Rolfe G. ;Rosenblatt, Charles


Book ID
115349821
Publisher
The Optical Society
Year
2002
Tongue
English
Weight
340 KB
Volume
41
Category
Article
ISSN
1559-128X

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The UV-induced alignment of nematic liquid crystals on Probimide 32 preimidized polyamide-imide surfaces is investigated. Exposing the polymer layer to linearly polarized deep UV ( l Γ… 254 nm) produces an aligning effect comparable to that achieved by mechanically brushing the polymer film. A laser