Electrically and Optically Controllable Liquid Crystal Grating with a Patterned Surface-Command Layer
Autor: | Sin-Doo Lee, Eunje Jang, Yeun-Tae Kim, Hyoungwon Baac |
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Rok vydání: | 2006 |
Předmět: | |
Zdroj: | Molecular Crystals and Liquid Crystals. 453:293-300 |
ISSN: | 1563-5287 1542-1406 |
DOI: | 10.1080/15421400600653720 |
Popis: | We propose a liquid crystal (LC) binary grating that can be controlled both electrically and optically in a simple scheme. The optical control scheme is obtained through the surface-induced reorientation of the LC molecules on a patterned surface-command layer by a single pump irradiation. The electrical control of the diffraction efficiency is achieved through the change in the phase retardation by the application of a bias voltage for given optically induced LC director distribution. In a coupled scheme of the optical and electrical control, the diffraction efficiency can be easily optimized. |
Databáze: | OpenAIRE |
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