Mutual diffusion dynamics with nonlocal response in SiO2 nanoparticles dispersed PQ-PMMA bulk photopolymer.
Mutual diffusion dynamics with nonlocal response in SiO2 nanoparticles dispersed PQ-PMMA bulk photopolymer.
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DOI：
10.1364/oe.19.013787
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发表时间：
2011-07
期刊：
影响因子：
3.8
通讯作者：
Dan Yu;Hongpeng Liu;Yongyuan Jiang;Xiu-Dong Sun
中科院分区：
文献类型：
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作者：
Dan Yu;Hongpeng Liu;Yongyuan Jiang;Xiu-Dong Sun
提出了具有非局域响应的互扩散动力学模型来描述二氧化硅纳米颗粒分散的PQ-PMMA光聚合物中的光栅形成。分析了PQ与SiO_2纳米粒子之间互扩散的物理机制。通过引入非局域效应，模拟了光栅的形成动力学和各分量的动态再分布。在实验中，测量了短曝光后光栅的暗增强和连续曝光下的光聚合。从定量上实现了二氧化硅纳米颗粒对全息性能的改善。最后，将理论结果与实验结果进行了比较，以了解互扩散特性。
Mutual diffusion dynamic model with nonlocal response was proposed to describe the grating formation in SiO2 nanopraticles dispersed PQ-PMMA photopolymer. The mutual-diffusion physical mechanism between PQ and SiO2 nanoparticles is analyzed. The grating formation kinetics and dynamic redistribution of components is simulated by introducing the nonlocal effect. In experiment the dark enhancement of grating after short exposure and the photopolymerization under consecutive exposure are measured. The improvement of SiO2 nanoparticles for the holographic properties is achieved quantitatively. Finally the comparison of theoretical and experimental results is presented for understanding the mutual-diffusion characteristics.