Voltage-controlled optical switch in planar nematic liquid crystal film

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題名:	Voltage-controlled optical switch in planar nematic liquid crystal film
作者:	Shih, Chia-Chi Chen, Yu-Jen Wu, Sean Tsai, Cheng-Che Jiang, I-Min 吳信賢;施嘉佶;蔡震哲 (東方技術學院電子與資訊系)
貢獻者:	東方技術學院電子與資訊系
日期:	2009-10
上傳時間:	2012-11-06 16:02:10 (UTC+8)
摘要:	This study presents an integrated device that consists of a directional coupler and an electro-optic switch. The device is designed to include a nematicliquidcrystal cell, comprising a grating-like electrode. Applying the appropriate voltage to the cell yields a periodically distributed refractive index. An incident polarized beam will couple to an adjacent channel if it is parallel to the channel. The coupling efficiency is controlled by applied voltage. An obliquely injected polarized beam will be reflected and refracted in the channel, and propagated along a curved path. The route of the beam can be controlled by applying the voltage. A multiport routing was achieved for voltage modulation. In addition, the distribution of refractive index is also investigated by employing conoscopic technique experimentally and numerically.
關聯:	Optics Communications, no.282 no.19, pp.3977-3981
顯示於類別:	[電子與資訊系(遊戲動畫系、動畫科)] 期刊論文

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