一种新型有机聚合物的光学性质及全息存储  

Optical Properties and Optical Holographic Storage in the in a New-style Organic Polymer

作　　者：谢茹胜[1] 林锦铌[1] 施志斌[1] 赵有源[2] 郑元庆[1] 

机构地区：[1]福建师范大学化学与材料科学学院,福建福州350007 [2]复旦大学光科学与工程系先进光子学材料与器件国家重点实验室,上海200433

出　　处：《福建师范大学学报（自然科学版）》2005年第1期62-65,共4页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(30100034;19834030)

摘　　要：将一种新型偶氮分子偶氮乙烯咔唑(Azo-ethylenecarbazole,AEC)掺入聚乙烯咔唑Poly(N-Vinylcarbazole,PVK)和聚丙烯丁酯(Poly-butylacrylate,PBA)的聚合物以及三硝基芴酮(2,4,7-trinitro-9-fluorenone,TNF)聚合制成薄膜器件.实验结果表明掺杂偶氮苯聚合物薄膜在非共振吸收下产生了大的光致双折射,折射率变化值Δn达到1.2×10-2.而且样品在双相干光束作用下,可建立光折射率光栅,并实现了光全息存储.同时对相关结果形成的物理化学机制做出了定性的分析.A new-style of azobenzene molecule (Azo-ethylenecarbazole)(AEC) doped in poly(N-Vinylcarbazole)(PVK), Poly-butylacrylate(PBA) and 2,4,7-trinitro-9-fluorenone(TNF) was synthesized and studied. The experimental results showed that the polymer film produces large magnitude of photo-induced birefringence and its value Δn can reaches 1.2×10^(-2) in the nonresonant absorption. When irradiated by two-beams, the sample can set up refractive index grating, and the optical holographic storage was achieved. The qualitative physical and chemistry mechanism to the experimental phenomena was analyzed.

关 键 词：偶氮乙烯咔唑 光致双折射 折射率光栅 光致异构 全息存储 

分 类 号：O4[理学—物理]