Journal
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume 52, Issue 3, Pages 183-192Publisher
WILEY
DOI: 10.1002/polb.23391
Keywords
fast switching; LCOS; light scattering; liquid-crystalline polymers (LCP); optics; polymer; spatial light modulator
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Funding
- AFOSR [FA95550-09-1-0170]
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Polymer network liquid crystal (PNLC) spatial light modulators are attractive for display and photonic applications because they can achieve submillisecond response time while keeping a large phase change. However, their on-state scattering caused by the grain boundary of LC multidomains hinders their applications. In this article, we review recent progress on the development of scattering-free PNLCs extending from short-wavelength infrared to visible region by reducing the domain sizes to approximate to 200 nm through low temperature curing process. To reduce operation voltage, both transmissive and reflective modes, LC material properties (birefringence and dielectric anisotropy), polymer composition and concentration, and pretilt angle effect are analyzed. (c) 2013 Wiley Periodicals, Inc.
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