Hologram Memory with High Quality and High Information Storage Density –Hologram Memory–
Hologram Memory with High Quality and High Information Storage Density –Hologram Memory–
复制标题
高质量、高信息存储密度的全息存储器–全息存储器–
DOI：
10.1143/jjap.11.656
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发表时间：
1972
影响因子：
1.5
通讯作者：
Y. Takeda
中科院分区：
文献类型：
--
作者：
Y. Takeda
用随机移相器(RPS)方法实现了信息存储密度为105bit/mm2的全息存储。存储密度在根据光学系统的特性预测的理论极限范围内。实验和数值计算表明，与常用的散焦方法相比，用RPS方法可以获得更高质量和更高信息存储密度的全息存储。从存储介质的理论极限出发，提出了存储密度为107bit/mm~2的全息存储介质。
A hologram memory with the information storage density of 105 bits/mm2 is realized by the RPS (Random Phase Shifter) method. The storage density is in the region of the theoretical limit predicted from the characteristics of the optical system. It is visualized by experiments and numerical calculations that by the RPS method the hologram memory of higher quality and higher information storage density can be made than by the commonly used defocussing method. For the future target, hologram memory of storage density of 107 bits/mm2 is suggested through the considerations of the theoretical limit from the storage medium.