Single-beam two-photon three-dimensional optical storage in a pyrryl-substituted fulgide photochromic material  

作　　者：Ningfang Liao Mali Gong Duanyi Xu Guosheng Qi Kai Zhang 

机构地区：[1]Tsing Hua Univ, Dept Precis Instruments, Beijing 100084, Peoples R China

出　　处：《Chinese Science Bulletin》2001年第22期1856-1859,共4页

基　　金：This work was supported by the National Key Basic Research Project (Grant No. G19990330).

摘　　要：We introduce a high-density three-dimensional optical data storage approach by using a pyrryl-sub-stituted fulgide photochromic material with a method of single-beam two-photon recording and fluorescence confocal readout. The detailed information about the photochromic material and the experimental setup are presented. The experiments about multi-layered recording and readout are carried out with a 100-μm-thick transparent photochromic material film. The results show that the lateral resolution is better than 1 μm, and the longitudinal resolution is about 3 μm. Besides, the readout times for the recorded data aredesirable when using a readout laser power smaller than 5 mW.We introduce a high-density three-dimensional optical data storage approach by using a pyrryl-substituted fulgide photochromic material with a method of single-beam two-photon recording and fluorescence confocal readout. The detailed information about the photochromic material and the experimental setup are presented. The experiments about multi-layered recording and readout are carried out with a 100-μm-thick transparent photochromic material film. The results show that the lateral resolution is better than 1 μm, and the longitudinal resolution is about 3 μm. Besides, the readout times for the recorded data are desirable when using a readout laser power smaller than 5 mW.

关 键 词：TWO-PHOTON optical data storage PHOTOCHROMIC material CONFOCAL microscope. 

分 类 号：TH74[机械工程—光学工程]