新型掺偶氮苯聚合物的取向增强及全息存储  

Orientation-enhanced and holographic storage of a novel azobenzene doped polymer

作　　者：谢茹胜[1,2] 赵有源[1] 

机构地区：[1]复旦大学信息科学与工程学院光科学与工程系,上海200433 [2]福建生物工程职业技术学院,福州350002

出　　处：《物理学报》2011年第5期316-322,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50533010)资助的课题~~

摘　　要：研究一种新型的并列式的高密度存储材料ADPA-PVK-PBA-TNF聚合物薄膜.在非吸收区用光抽运测试法研究了薄膜光致双折射,获得光致双折射变化值Δn=1.3×10-3,分析了该聚合物薄膜光致取向增强的物理和化学机理.探讨了抽运光对光致双折射的增强和抑制效应.在此基础上初步实现了多重角度复用信息存储、获得了较为清晰的全息存储图像.并讨论了图象存储的增强/抑制效应,利用这种效应可对存储图像处理或删除.A novel optical high-density storage material ADPA-PVK-PBA-TNF polymer film was reported.In the nonresonant absorption of sample,we tested and investigated its photo-induced birefringence and obtained the value Δn = 1.3 × 10-3.We analyzed the physico-chemiscal mechanism of orientation-enhancement and discussed the enhancing /restraining effects of photo-induced birefringence in the film.On this basis,multiple angles storage were achieved and clear holographic storage images were gained.The enhancing /restraining effect of image storage was also discussed.And with the help of this effect one can process and remove storage images.

关 键 词：掺杂偶氮苯聚合物薄膜 光致双折射 光全息存储 光致取向增强 

分 类 号：O438.1[机械工程—光学工程]