紫光至红光敏感的多波长复用全息存储材料  

Holographic Recording Photopolymer Sensitive to Broad Wavelenth from Violet to Red Light

作　　者：肖勇[1,2] 唐道广[2] 陈珂[2] 成建群[2] 黄明举[2] 

机构地区：[1]河南大学光学与光电技术研究所,河南开封475001 [2]河南大学物理与电子学院,河南开封475001

出　　处：《光子学报》2009年第3期630-635,共6页Acta Photonica Sinica

基　　金：河南大学自然科学基金重点项目(06ZDZR002)资助

摘　　要：制备了一种对紫光至红光波段敏感的光致聚合物全息存储材料,用476nm、488nm、496nm、514.5nm及632.8nm五种波长曝光对其进行光全息性能的研究.研究表明,该材料在各种波长下的最大衍射效率均不低于45%,曝光灵敏度大于4.22×10-3cm2.mJ-1,折射率调制度高于1.62×10-4,光栅频率接近3000lp/mm等.A novel holographic storage photopolymer,which was sensitive to the wavelenth from violet to red light,was fabricated. The holographic recording characteristics were studied with 476 nm,488 nm,496 nm,514.5 nm and 632.8 nm five exposure wavelengths. The results show that the diffraction efficiency is more than 40% ,the photo-sensitivity is more than 4.22 × 10^-3 cm^2 · mJ^-1 ,and the frequency of grating reaches to 3 000 lp/mm, etc. Many holograms were recorded at the same location with different wavelengths and could be reconstructed clearly.

关 键 词：光全息 光致聚合物 衍射效率 多波长复用 波长选择性 

分 类 号：O438.1[机械工程—光学工程]