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Proceedings Paper

Dual frequency liquid crystal devices for infrared electro-optical applications
Author(s): Dong-Feng Gu; Bruce K. Winker; Donald B. Taber; Jeffrey T. Cheung; Yiwei Lu; Paul H. Kobrin; Zhiming Zhuang
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Paper Abstract

A dual frequency liquid crystal (DFLC) can be field-driven towards its unperturbed state, which dramatically reduces the overall electro-optical response time. DFLC materials with sub-millisecond switching speed are being used in infrared electro-optical devices at wavelengths up to 3 microns. The performance of devices such as tunable half-wave plates and optical phased arrays in agile beam steering devices, and wavefront controllers for adaptive optics are described. Device issues discussed include drive schemes, field of view, reflective direct drive backplane, infrared-transparent conductors, and antireflection coatings.

Paper Details

Date Published: 12 December 2002
PDF: 11 pages
Proc. SPIE 4799, Liquid Crystals VI, (12 December 2002); doi: 10.1117/12.453280
Show Author Affiliations
Dong-Feng Gu, Rockwell Scientific (United States)
Bruce K. Winker, Rockwell Scientific (United States)
Donald B. Taber, Rockwell Scientific (United States)
Jeffrey T. Cheung, Rockwell Scientific (United States)
Yiwei Lu, Rockwell Scientific (United States)
Paul H. Kobrin, Rockwell Scientific (United States)
Zhiming Zhuang, Motorola (United States)


Published in SPIE Proceedings Vol. 4799:
Liquid Crystals VI
Iam-Choon Khoo, Editor(s)

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