Photorefractive optics in three-dimensional digital memory
Photorefractive optics in three-dimensional digital memory
复制标题
三维数字存储器中的光折变光学
DOI：
10.1109/5.805917
复制
发表时间：
1999
影响因子：
20.6
通讯作者：
S. Kawata
中科院分区：
文献类型：
--
作者：
S. Kawata
为了克服现有光存储中表面记录方法的容量限制，利用光折变材料引入了第三维空间。光折变材料适合于与非线性光学系统（例如用于记录的材料的双光子吸收过程和用于阅读的共焦激光扫描系统）结合的三维数据存储。我将描述用于三维数字存储器的系统和材料，以及光聚合物只读存储器、锂离子晶体可擦除存储器和光致变色有机材料可擦除存储器的实验结果。光折变数字三维存储器与传统的全息三维存储器和近场存储器之间的比较也讨论了在动态范围，噪声，记录密度，和可访问性。
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 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.