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Three-dimensional optical data storage system with minute sphere disk by use of confocal polarization microscope

使用共焦偏振显微镜的微小球盘三维光学数据存储系统

基本信息

批准号：
16360122
负责人：
EGAMI Chikara
金额：
$ 9.6万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360122/
关键词：
Microscope Memory Polymer Sphere

项目摘要

We propose a new optical data storage system with dye-doped minute spheres. The system uses the confocal polarization microscope. In order to avoid a problem of jitter as instability of rotating disk speed and resultant fluctuation of recording bit formation, we have devised a new process. The process involves the use of dye-doped minute spheres arranged upon a surface-relief structure as recording bits. By using dye-doped minute spheres we can limit a sensitive region within a sphere's diameter. Alternate laminating recordable sphere layer with sensitivity and buffer layer with insensitivity structurally limits recording bits in three dimensions.Using a reflection-type confocal optical microscope, we read out shape signals from minute spheres at high resolution. The shape signal from each minute sphere is utilized as a clock signal in recording and readout. The clock signal can be produced by separating a high-level signal and a low-level signal on the basis of a threshold. In our minute sphere optical storage system, a shift between positions of the recording bit and the clock signal does not occur because the clock signal is generated based on the shape signal from a minute sphere as the recording bit.The jitter-free technique proved to be extremely effective for disk recording and readout.

我们提出了一种新的光学数据存储系统与染料掺杂微小球。该系统采用共焦偏光显微镜。为了避免由于旋转盘速度的不稳定性和由此产生的记录比特形成的波动而引起的抖动问题，我们设计了一种新的工艺。该过程涉及使用掺杂染料的微小球体作为记录位，这些球体排列在表面浮雕结构上。通过使用染料掺杂的微小球体，我们可以将敏感区域限制在球体直径内。交替层叠具有灵敏度的可记录球层和具有不灵敏度的缓冲层，在结构上限制了记录位的三维空间，利用反射式共聚焦光学显微镜，我们以高分辨率读出了微小球的形状信号。来自每个微小球体的形状信号被用作记录和读出中的时钟信号。可以通过基于阈值分离高电平信号和低电平信号来产生时钟信号。在我们的微小球体光存储系统中，由于时钟信号是基于来自作为记录位的微小球体的形状信号生成的，因此不会发生记录位和时钟信号的位置偏移，无抖动技术被证明对于盘记录和读出非常有效。