有机-无机ZrO_2纳米复合光致聚合物的全息特性  

Holographic characteristics of organic-inorganic ZrO_2 nano-composite photopolymer

作　　者：何飞[1] 海富生[2] 薛晓渝[1] 黄明举[1] 

机构地区：[1]河南大学光学与光子技术研究所光电信息材料与器件重点学科开放实验室,河南开封475004 [2]河南大学生命科学学院,河南开封475004

出　　处：《光电子．激光》2012年第4期712-717,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61177004)资助项目

摘　　要：研究了一种掺入ZrO2纳米颗粒的丙烯酰胺基光致聚合物的全息特性。用Ar+Kr+激光器647nm波长的光对光聚物进行曝光,实验表明,在纯有机光致聚合物中掺入ZrO2纳米颗粒后,折射率调制度从1.88×10-3提高到2.28×10-3,缩皱率从3.2%降低到0.8%。说明有机-无机ZrO2纳米复合光致聚合物材料,是高密度全息存储所需的比较理想的存储材料。Holographic characteristics of the ZrO2-nanoparticles-doped polyvinyl alcohol/acrylamide（PVA/AA）-based photopolymer are studied.It is illuminated under the incident wavelength of 647 nm from Ar＋Kr＋ laser.The experimental results show that the incorporation of ZrO2 nanoparticles leads to a significant improvement of refractive index modulation and a decrease of the shrinkage：the refractive index modulation is increased from 1.88×10-3 to 2.28×10-3 and the shrinkage is decreased from 3.2% to 0.8%.All of the results demonstrate that the organic-inorganic nanocomposite photopolymer will be the most appropriate candidate in the future holographic system.

关 键 词：全息 光致聚合物 纳米颗粒 折射率调制度 布拉格偏移 

分 类 号：O438.1[机械工程—光学工程]