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Proceedings Paper

Surface-mediated alignment of liquid crystals with polarized light (Invited Paper)
Author(s): Wayne M. Gibbons; Paul J. Shannon; S. T. Sun
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Paper Abstract

Liquid crystals are utilized in many display applications. The use of liquid crystals in electro- optic phase devices, spatial light modulators and laser optics is becoming increasingly more common. Critical to most of these applications is the uniform macroscopic alignment of the liquid crystals. We have discovered a new process of controlling the local macroscopic alignment of liquid crystal molecules using polarized light. This discovery gives an additional degree of freedom in controlling liquid crystal alignment. In addition, complex devices (i.e., binary phase devices) that would be difficult to achieve using conventional alignment techniques (i.e., buffing, deposition, etc.) may be readily attainable using optical techniques. The optically induced alignment described in this paper possesses memory, write-rewrite capability, and high spatial resolution on the order of micrometers or less.

Paper Details

Date Published: 15 June 1992
PDF: 10 pages
Proc. SPIE 1665, Liquid Crystal Materials, Devices, and Applications, (15 June 1992); doi: 10.1117/12.60387
Show Author Affiliations
Wayne M. Gibbons, Hercules Inc. (United States)
Paul J. Shannon, Hercules Inc. (United States)
S. T. Sun, Hercules Inc. (United States)

Published in SPIE Proceedings Vol. 1665:
Liquid Crystal Materials, Devices, and Applications
Paul S. Drzaic; Uzi Efron, Editor(s)

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