光致变色和光致漂白材料的飞秒激光写/读实验研究  

Experimental study on storage by femtosecond laser writing/reading in photochromic/photobleaching materials

作　　者：邢卉[1] 唐火红[1] 徐敏[1] 江兵[1] 蔡建文[1] 黄文浩[1] 张复实[2] 张其锦[3] 

机构地区：[1]中国科学技术大学精密机械与精密仪器系,安徽合肥230027 [2]清华大学化学系,北京100084 [3]中国科学技术大学高分子材料及工程系,安徽合肥230026

出　　处：《中国科学技术大学学报》2007年第7期742-747,共6页JUSTC

基　　金：国家自然科学基金(50335050)资助

摘　　要：利用自行搭建的飞秒激光系统研究了光致变色材料二芳基乙烯和光致漂白材料二苯乙烯的写入及读出特性.通过分别改变激发能量和激发时间,对系统的存储分辨率进行了实验研究.结果表明,通过控制激发能量或激发时间都可以得到很高的存储分辨率;超低读出能量有利于信息存储寿命的提高;实现了三维光致变色存储密度达0.3×1010bits/cm3,光致漂白存储密度达0.5×1010bits/cm3.Two materials - one our femtosecond laser system excitation power and time. The and time and long data lifetime photochromic, the other photobleaching moderial were investigated with in write and readout research. The resolution was tested by varying results show that high resolution can be obtained by controlling the power can be achieved when using low readout energy. High density 3D data storage was achieved, approaching 0. 3 × 10^10 bits/cm^3 in photochromic material and 0. 5 × 10^10 bits/cm^3 in photobleaching material.

关 键 词：三维光信息存储 存储分辨率 飞秒激光 光致变色 光致漂白 

分 类 号：TQ591[化学工程—精细化工]