点击此处 ,将本页翻译成中文
将本页翻译成中文
您现在的位置:首页> 外文会议>Advances in Optical Data Storage Technology >文献详情
【6h】

High-density, large-capacity, nonvolatile holographic storage in photorefractive crystals

【摘要】 The recent research on high-density, large-capacity, nonvolatile holographic storage in photorefractive crystals, carried out at Beijing University of Technology, is reviewed in this paper. A batch thermal fixing technique was developed to overcome the volatility of a large number of multiplexed holograms, which has also proved to increase the effective dynamic range of crystals, hence to increase the storage density. The key of this technique is determination of the inter-batch optical erasure time constant that is much longer than the convenient (intra-batch) erasure time constant of the crystal. Disk-type storage is proposed to increase the degree of spatial multiplexing, so that the whole volume of the material can be used for storage, and the capacity increases remarkably. Incorporating batch thermal fixing into holographic disk storage yields to a track-division thermal fixing (TDTF) scheme for holographic disk storage to overcome the volatility of information and increase the storage density and capacity as well. Analyses and experimental results on a high density of 50 bits/μm~2 (10 Gbits/cm~3) show that high-density huge-capacity mass storage, indicated by storing 1 tera-bits or more data in a single crystal of reasonable size, can be achieved by means of TDTF holographic disk storage scheme.

【会议名称】 Advances in Optical Data Storage Technology

【会议地点】Beijing(CN)

【作者】 Shiquan Tao; Zhuqing Jiang; Wei Yuan; Yuhong Wan; Ye Wang; Guoqing Liu; Dayong Wang; Xiaohong Ding; Kebin Jia;

【作者单位】 College of Applied Sciences, Beijing University of Technology, 100 Ping Le Yuan, Chaoyang District, Beijing 100022, China;

【会议组织】

【会议召开年】 2004

【页码】P.63-72

【总页数】10

【原文格式】PDF

【正文语种】eng

【中图分类】TP333.4;

【原文服务方】国家工程技术数字图书馆

【关键词】holographic storage;density;capacity;non-volatility;batch-thermal fixing;dynamic range;image fidelity;track-division thermal fixing;disk-type storage;

联系方式:18141920177 (微信同号)

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号