Electrically and Optically Controllable Liquid Crystal Grating with a Patterned Surface-Command Layer

Autor: Sin-Doo Lee, Eunje Jang, Yeun-Tae Kim, Hyoungwon Baac
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