Use of two-photon absorption in a photorefractive crystal for three-dimensional optical memory

被引：133

作者：

Kawata, Y ^{[1
]}

Ishitobi, H

Kawata, S

机构：

[1] Shizuoka Univ, Dept Engn Mech, Hamamatsu, Shizuoka 432, Japan

[2] Osaka Univ, Dept Appl Phys, Suita, Osaka 565, Japan

来源：

OPTICS LETTERS | 1998年 / 23卷 / 10期

关键词：

D O I：

10.1364/OL.23.000756

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the use of two-photon absorption in a photorefractive crystal for recording bit data in multilayered optical memory. A short-pulse near-infrared laser is used for generating the photorefractive effect by two-photon absorption. We succeeded in recording and reading seven layers of data in a LiNbO3 crystal with a lateral resolution (distance between bits) of 5 mu m and an axial resolution (distance between layers) of 20 mu m. (C) 1998 Optical Society of America.

引用

页码：756 / 758

页数：3

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