| 聚合物分散液晶光栅的衍射特性的研究 |
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| 引用本文： | 任洪文.聚合物分散液晶光栅的衍射特性的研究[J].光学学报,1998,18(5):31-634. |
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| 作者姓名： | 任洪文 |
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| 作者单位： | 中国科学院长春物理研究所，北方液晶工程研究开发中心 |
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| 摘 要： | 报道了一种由聚合物分散液晶膜与具有周期性条状电极结构板结合的新型光栅器件，借助于聚合物分散液晶膜的电光特性，这种栅对入射光的散射或衍射取决于对其施加的电压，即它是电场可调的，实验结果显示出当驱动电压超过器件器件阈值电压时，衍射光的强度和衍射斑的可见级次被电场调制，而且它能入射光的线性偏振态变为椭圆偏振态。
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| 关 键 词： | 向列液晶 聚合物分散液晶 折射率匹配 光栅 |
| 收稿时间： | 1997/3/22 |
Diffraction Properties of a Polymer Dispersed Liquid Crystal Grating |
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| Ren Hongwen Huang Ximin Wang Zongkai Ma Kai Changchun Institute of Physics,The Chinese Academy of Sicences,Changchun North Liquid Crystal Engineering Research and Development Center,Changchun.Diffraction Properties of a Polymer Dispersed Liquid Crystal Grating[J].Acta Optica Sinica,1998,18(5):31-634. |
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| Authors: | Ren Hongwen Huang Ximin Wang Zongkai Ma Kai Changchun Institute of Physics The Chinese Academy of Sicences Changchun North Liquid Crystal Engineering Research and Development Center Changchun |
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| Institution: | Ren Hongwen Huang Ximin Wang Zongkai Ma Kai Changchun Institute of Physics,The Chinese Academy of Sicences,Changchun 130021 North Liquid Crystal Engineering Research and Development Center,Changchun 130021 |
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| Abstract: | A novel grating device composed of a polymer dispersed liquid crystal (PDLC) film and a periodic striped electrode structure has been demonstrated. Due to PDLC electrooptical properties, this grating can cause scattering or diffraction of an incident light dependent upon the applied voltage. i.e. it is adjustable by electric field. Results show that when the applied voltage is higher than its threshold voltage, both diffraction light intensities and visible orders can be controlled electrically. Moreover, the linear polarization state of the incident light can be changed into an elliptical polarization state. |
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| Keywords: | nematic liquid crystal polymer dispersed liquid crystal matching of refractive index diffraction grating |
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