Holographic grating formation in SiO2 nanoparticle-dispersed PQ-PMMA photopolymer
Holographic grating formation in SiO2 nanoparticle-dispersed PQ-PMMA photopolymer
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SiO2 纳米粒子分散的 PQ-PMMA 光聚合物中全息光栅的形成
DOI:
10.1016/j.optlastec.2011.11.015
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发表时间:
2012-06
影响因子:
5
通讯作者:
Xiudong Sun
中科院分区:
文献类型:
--
作者:
Dan Yu;Jian Wang;Yongyuan Jiang;Xiudong Sun
The holographic recording and grating formation dynamics in SiO2nanoparticle-dispersed PQ-PMMA photopolymer are investigated theoretically and experimentally. It has demonstrated a possibility to improve the refractive index modulation by doping inorganic nanoparticles into the polymer matrix. During exposure the nonlinear dependence γ of polymerization rate on the incident intensity is elevated and therefore faster grating formation rate is obtained in SiO2nanoparticle-dispersed photopolymer. Mutual diffusion dynamics as dark diffusional enhancement mechanism after exposure is analyzed and simulated by mutual diffusion model. The maximum of mutual diffusion coefficient with the order of magnitude 10−16m2/s is extracted. This study can provide a significant foundation for improving the properties of the polymer using inorganic nanoparticles as dopants.
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