| 带有补偿膜的扭曲相列液晶宽带快速偏振光开关 |
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| 引用本文： | 王琼华,成建波.带有补偿膜的扭曲相列液晶宽带快速偏振光开关[J].光子学报,2005,34(3):357-360. |
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| 作者姓名： | 王琼华 成建波 |
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| 作者单位： | 电子科技大学光电信息学院,成都,610054;电子科技大学光电信息学院,成都,610054 |
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| 摘 要： | 提出了由一个扭曲相列液晶和两个单轴补偿膜构成的宽带偏振光开关,采用共轭梯度法对该器件参数进行优化设计.模拟结果表明此偏振光开关在整个可见光400-700 nm范围内,具有高对比度的特征,响应时间达到通常液晶显示器的水平.
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| 关 键 词： | 偏振光开关 扭曲相列液晶 单轴补偿膜 共轭梯度法 琼斯矩阵 |
| 收稿时间： | 2004-05-08 |
| 修稿时间： | 2004年5月8日 |
An Achromatic Twisted Nematic Liquid Crystal Polarization Switch with a Compensated Film |
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| Wang Qionghua,Cheng Jianbo.An Achromatic Twisted Nematic Liquid Crystal Polarization Switch with a Compensated Film[J].Acta Photonica Sinica,2005,34(3):357-360. |
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| Authors: | Wang Qionghua Cheng Jianbo |
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| Institution: | School of Opto-electronic Information, University of Electronic Science and Technology of China, Chengdu 610054 |
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| Abstract: | A broadband polarization switch consisting of an active twisted nematic liquid crystal cell and two passive uniaxial compensation films is proposed. The conjugate gradient method was used for optimizing the device parameters. Simulation results indicate that the polarization switch exhibits a broad bandwidth with 400~700 nm, high contrast ratio and fast response time with 20~30 ms. |
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| Keywords: | Polarization switch Twisted liquid crystal Uniaxial compensation film Conjugate gradient method Jones matrix |
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