Photorefractive optics in three-dimensional digital memory

被引：21

作者：

Kawata, S ^{[1
]}

机构：

[1] Osaka Univ, Dept Appl Phys, Suita, Osaka 5650871, Japan

来源：

PROCEEDINGS OF THE IEEE | 1999年 / 87卷 / 12期

关键词：

bit-oriented three-dimensional memory; optical data storage; photorefractives; three-dimensional optics; two-photon absorption;

D O I：

10.1109/5.805917

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To exceed the capacity limitation of the surface-recording method of current optical data storage, the third dimension is introduced with photorefractive materials. Photorefractive materials are suitable for three-dimensional data storage in conjunction with nonlinear, optical systems such as the two-photon absorption process of the material for recording and the confocal laser-scanning system for reading. I will describe the systems and the materials for three-dimensional digital memory with the experimental results for read-only memory with photopolymer erasable memory with a lithium niobate crystal and rewritable memory with photochromic organic materials. The comparison between photorefractive active digital three-dimensional memory with conventional holographic three-dimensional memory and near field memory is also discussed in terms of dynamic range, noise, recording density, and accessibility.

引用

页码：2009 / 2020

页数：12

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