光折变晶体中的盘式三维全息存储  

Disk-type 3-D Holographic Storage in a Photorefractive Crystal

作　　者：袁泉[1] 陶世荃 宋雪华[1] 刘国庆[1] 王大勇[1] 李宝胜[1] 江竹青[1] 徐敏[1] 

机构地区：[1]北京工业大学应用物理系,北京100022

出　　处：《中国激光》1999年第12期1097-1102,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金;北京市自然科学基金

摘　　要：利用空间-角度复用和球面参考波技术在盘式光折变铌酸锂晶体中存储了2000 幅高分辨率图像,并获得满意的再现。给出了选取盘面旋转角度等主要参数的基本依据和存储器达到的主要性能指标。研究表明,实验结果与理论分析符合得很好,证实了全息光盘在大容量信息存储方面的可行性。high resolution images have been stored in a disk type photorefractive LiNbO 3∶Fe crystal using spatioangular multiplexing with a spherical reference wave. All images stored are successfully reconstructed without visuable cross talk or information loss. In this paper the angular separation between adjacent holograms in a track, as well as the radial separation between adjacent tracks are given, and the achieved performance from this memory is reported. The experimental results agree well with theory. This research demonstrated that 3 D holographic disks are feasible for mass information storage.

关 键 词：全息存储 三维全息光盘 角度-空间复用 

分 类 号：TP333.42[自动化与计算机技术—计算机系统结构]