| 向列相液晶动态全息存储特性的研究 |
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| 引用本文： | 任常愚,孙秀冬.向列相液晶动态全息存储特性的研究[J].光子学报,2005,34(5):785-788. |
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| 作者姓名： | 任常愚 孙秀冬 |
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| 作者单位： | 哈尔滨工业大学,应用物理系,哈尔滨,150001;黑龙江科技学院,数力系,哈尔滨,150027;哈尔滨工业大学,应用物理系,哈尔滨,150001 |
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| 基金项目： | 黑龙江省留学回国基金 (LC01C11 )，国防基础研究项目资助 |
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| 摘 要： | 研究了C60掺杂向列相液晶中全息光栅的形成, 实验中我们利用了一种特殊的全息再现方法：即低电压记录, 高电压再现, 观察到清晰的全息再现像. 实验结果表明样品具有良好的全息存储能力. 分析了电压对实验结果的影响, 实验表明：为了避免动态散射的出现应使用较低的记录电压, 而再现时应采取高电压以重新激发隐藏的光栅, 提高再现的质量.
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| 关 键 词： | 非线性光学 全息 向列相液晶 取向光折变效应 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004年11月15 |
Study on the Dynamic Holographic Storage Characteristics in C60-doped Nemtic Liquid Crystal |
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| REN Changyu,SUN Xiudong.Study on the Dynamic Holographic Storage Characteristics in C60-doped Nemtic Liquid Crystal[J].Acta Photonica Sinica,2005,34(5):785-788. |
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| Authors: | REN Changyu SUN Xiudong |
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| Institution: | (1 Dept. of Applied Physics, Harbin Institute of Technology, Harbin 150001)
(2 Dept. of Mathematics and Mechanics, Heilongjiang Institute of Science and Technology, Harbin 150027) |
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| Abstract: | The holographic grating formation induced by an input pattern in company with a reference wave in a fullerene-doped nematic liquid crystal film were studied experimentally. In experiment we employed a particular method in order to reconstruct the hologram, namely recorded the hologram under low voltage and reconstructed the hologram by high voltage. Evidence concerning the reconstruction of holograms indicates that this photorefractive liquid crystal can, indeed, serve as a hologram-recording medium. Finally, we analyzed the reconstruction mechanism. |
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| Keywords: | Nonlinear optics Holography Nematic liquid crystal Orientational photorefractive effect |
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