【作者】 王龙阁； 赵磊； 王艳； 黄明举；

【Author】 Wang Longge Zhao Lei Wang Yan Huang Mingju (Institute of Photon and Optoelectronics Technique,College of Physics and Electronics,Henan University,Kaifeng 475004,China)

【机构】 河南大学物理与电子学院光学与光电子技术研究所；

【摘要】 为了降低光致聚合物材料的缩皱,制备了一种掺杂Mg(OH)2纳米颗粒的光聚物材料,并研究了该材料的全息存储特性。该材料以亚甲基蓝作为光敏剂,用波长为647nm的激光对其进行曝光。研究表明,聚合物中掺入Mg(OH)2纳米颗粒后,材料的缩皱率由3.2%降为1.6%,衍射效率从75%提高至89%,折射率调制度最高可达2.24×10-3;在制备的样品中进行了模拟图像存储,再现图像仍然清晰。说明在光致聚合物中掺入Mg(OH)2纳米颗粒,有助于提高材料的全息特性。更多还原

【Abstract】 In order to improve the shrinkage properties of photopolymer material,a photopolymer doped with Mg(OH) 2 nanoparticle is fabricated,and its holographic storage characteristics are investigated.Aparting from using Methylene Blue trihydrate as photosensitizer,this material is exposed at a wavelength of 647 nm.The experimental results show that the shrinkage is decreased from 3.2% to 1.6% and the diffraction efficiency is increased from 75% to 89% when the photopolymer doped with Mg(OH) 2 nanoparticle,and the maximum refractive index modulation amount to 2.24×10-3 ;The analog image is stored in the material and the reconstructed hologram is clearly.All of the results demonstrate that he incorporation of Mg(OH) 2 nanoparticle can improve the holographic characteristics of photopolymer material.更多还原