| 掺杂LiNbO3晶体的生长缺陷与其体全息存储性能的研究 |
| |
| 引用本文： | 刘金伟,刘国庆,江竹青,陶世荃.掺杂LiNbO3晶体的生长缺陷与其体全息存储性能的研究[J].人工晶体学报,2005,34(5):865-869. |
| |
| 作者姓名： | 刘金伟 刘国庆 江竹青 陶世荃 |
| |
| 作者单位： | 北京工业大学应用数理学院,北京,100022;北京工业大学应用数理学院,北京,100022;北京工业大学应用数理学院,北京,100022;北京工业大学应用数理学院,北京,100022 |
| |
| 基金项目： | 国家自然科学基金资助项目（No.69977005）;北京市教委科技发展计划资助项目（No.05006012200201） |
| |
| 摘 要： | 本文叙述了利用侵蚀法研究掺杂LiNbO3的晶体缺陷,并讨论了晶体缺陷的形成机理以及其与体全息存储性能的关系.通过实验发现了常温下侵蚀铌酸锂晶体的规律,并利用侵蚀法观测到铌酸锂晶体样品表面呈三角锥状的位错侵蚀坑.测量了晶体样品的散射噪声,从中找出了晶体缺陷与存储图像质量关系.并发现掺Zn的Fe:LiNbO3晶体其晶体缺陷减少,晶体体全息存储性能有了明显提高.
|
| 关 键 词： | 铌酸锂晶体 位错缺陷 侵蚀观测法 散射噪声 体全息存储 |
| 文章编号： | 1000-985X（2005）05-0865-05 |
| 收稿时间： | 03 16 2005 12:00AM |
| 修稿时间： | 2005-03-16 |
Study on the Growth Defects of Doped LiNbO3 Crystals and Their Properties of Compact Volume Holographic Storage |
| |
| LIU Jin-wei,LIU Guo-qing,JIANG Zhu-qing,TAO Shi-quan.Study on the Growth Defects of Doped LiNbO3 Crystals and Their Properties of Compact Volume Holographic Storage[J].Journal of Synthetic Crystals,2005,34(5):865-869. |
| |
| Authors: | LIU Jin-wei LIU Guo-qing JIANG Zhu-qing TAO Shi-quan |
| |
| Institution: | College of Applied Sciences, Beijing University of Technology, Beijing 100022, China |
| |
| Abstract: | In this paper,the defects,their formation mechanisms and the properties of compact volume holographic storage of doped LiNbO_3 crystals were analyzed and discussed by using the observing method of etching.We try to find out the laws of the crystal etching in the normal temperature according to the experiment,and observed the dislocation etching pits which is a angle taper on the surface of LiNbO_3 crystals.We measured the spread noise of doped LiNbO_3 crystals,finding out the relation between the crystal defects and picture quality according to the experiment.At last,we find that the crystal defects of Zn:Fe:LiNbO_3 are less than Fe:LiNbO_3,and the properties of compact volume holographic storage of the Zn:Fe:LiNbO_3 are better than Fe:LiNbO_3. |
| |
| Keywords: | lithium niobate crystals dislocation defect etching observation method spread noise volume holographic storage |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《人工晶体学报》浏览原始摘要信息 |
| 点击此处可从《人工晶体学报》下载免费的PDF全文 |
