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Proceedings Paper

Stressed liquid crystals
Author(s): Anatoliy Glushchenko; Ke Zhang; Guoqiang Zhang; Toshihiro Aoki; John L. West
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Paper Abstract

The recently discovered stressed liquid crystals (SLCs) are of a great interest because they provide the largest phase retardation shift achievable within the shortest time interval. This was accomplished by decoupling the speed of a liquid crystal layer from its thickness. SLCs easily switch 5 microns of phase retardation at sub-millisecond speeds. We have produced phase shifts as large 50 microns in several milliseconds. SLCs are therefore able to modulate IR light with response frequencies higher than 10 kHz. The SLCs are polymer/liquid crystal composites; however, their electro-optic properties differ significantly from previously developed polymer dispersed liquid crystals and polymer network/stabilized liquid crystals. An applied mechanical stress aligns the liquid crystal domains, eliminating scattering and hysteresis at the same time. The phase shift is highly linear with the applied voltage, greatly simplifying the drive electronics. The SLCs pose intriguing basic scientific questions and may be used in a host of new electro-optical applications (micro-displays, diffractive optical elements, beam steering devices).

Paper Details

Date Published: 12 April 2005
PDF: 10 pages
Proc. SPIE 5741, Emerging Liquid Crystal Technologies, (12 April 2005); doi: 10.1117/12.591126
Show Author Affiliations
Anatoliy Glushchenko, Kent State Univ. (United States)
Ke Zhang, Kent State Univ. (United States)
Guoqiang Zhang, Kent State Univ. (United States)
Toshihiro Aoki, Kent State Univ. (United States)
John L. West, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 5741:
Emerging Liquid Crystal Technologies
Liang-Chy Chien, Editor(s)

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