光致变色俘精酸酐用于可擦写全息图像存储的研究  

Study of Holographic Image Storage in Rewritable Photochromic Fulgide Material

作　　者：王英利[1] 姚保利[1] 郑媛[1] 门克内木乐[1] 雷铭[1] 陈国夫[1] 陈懿[2] 樊美公[2] 闫起强[2] 韩勇[2] 孟宪娟[2] 

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,陕西西安710068 [2]中国科学院物理化学技术研究所,北京100101

出　　处：《中国激光》2004年第4期457-460,共4页Chinese Journal of Lasers

基　　金：国家自然科学基金 ( 6 0 0 0 70 0 9;6 0 2 780 2 6 );国家"973"重点研究计划(G19990 330 0 4);中国科学院创新方向性研究(4 0 0 0 10 4 3)资助项目

摘　　要：对一种新型可擦重写有机光致变色材料———俘精酸酐 /聚甲基丙烯酸甲脂 (PMMA)薄膜的光致变色双稳态吸收光谱进行了测量 ,呈色态的吸收峰在 5 13nm ,无色态的吸收峰在 370nm。利用该双稳态特性 ,在 10 μm俘精酸酐 /PMMA薄膜上进行全息图像光存储。实验用氩离子激光器 5 14 5nm波长作为记录光源 ,测量了衍射效率与曝光量的关系 ,最大衍射效率约为 1% ,最佳曝光量约 1J/cm2 。获得了存储于样品上的全息干涉条纹和参考光再现的衍射像 ,分析了影响衍射图像像质的因素。记录在样品上的全息图在室温下黑暗处可以保存一年以上 ,用紫外光可以擦除记录的全息图 ,进行多次记录、读出和擦除操作。结果表明 。A new type of organic photochromic material—fulgide/PMMA film was investigated as a rewritable holographic recording medium. The bistable absorption spectra of the fulgide/PMMA film were measured. The maximum absorption of the colored state was centered at 513 nm, the peak absorption of the bleached state was at 370 nm. Based on the bistable states of the photochromic fulgide, holographic images were stored on the 10 μm film. Argon laser (514.5 nm) was used as recording light. The relation between the diffraction efficiency and the exposure was measured, which showed that the maximal diffraction efficiency was about 1% under the exposure 1 J/cm 2 or so. Holographic gratings recorded on the film and diffraction images recovered by the reference beam were obtained. Factors influencing the recovery image′s quality were analyzed. The holographic gratings recorded on the film can be kept for over one year in darkness at room temperature, which can be erased by UV light. The sample can be written, read and erased in many times. The experimental results show that the fulgide can be used as a good rewritable holographic storage material.

关 键 词：信息光学 俘精酸酐 光致变色 全息光存储 

分 类 号：TQ597.92[化学工程—精细化工] O438.1[机械工程—光学工程]