吴圣涵, 曹良才, 郝金坪, 朱辰, 金国藩. 金纳米颗粒掺杂光致聚合物的体全息混合光栅模型[J]. 应用光学, 2018, 39(5): 707-713. DOI: 10.5768/JAO201839.0505002
引用本文: 吴圣涵, 曹良才, 郝金坪, 朱辰, 金国藩. 金纳米颗粒掺杂光致聚合物的体全息混合光栅模型[J]. 应用光学, 2018, 39(5): 707-713. DOI: 10.5768/JAO201839.0505002
Wu Shenghan, Cao Liangcai, Hao Jinping, Zhu Chen, Jin Guofan. Volume holographic mixed-gratings model in photopolymer doped with gold nanoparticles[J]. Journal of Applied Optics, 2018, 39(5): 707-713. DOI: 10.5768/JAO201839.0505002
Citation: Wu Shenghan, Cao Liangcai, Hao Jinping, Zhu Chen, Jin Guofan. Volume holographic mixed-gratings model in photopolymer doped with gold nanoparticles[J]. Journal of Applied Optics, 2018, 39(5): 707-713. DOI: 10.5768/JAO201839.0505002

金纳米颗粒掺杂光致聚合物的体全息混合光栅模型

Volume holographic mixed-gratings model in photopolymer doped with gold nanoparticles

  • 摘要: 金纳米颗粒掺杂光致聚合物在全息曝光过程中,光产物周期分布会形成折射率调制相位型主光栅,同时金纳米颗粒周期分布形成由局域表面等离子体共振引起强吸收的振幅型辅助光栅。研究基于耦合波理论的一种混合光栅模型,分析了光栅的体全息光学特性。结果表明,混合光栅中的折射率光栅和吸收光栅都能够提升体光栅的衍射效率; 体光栅的角度选择性也可以得到明显的改善。

     

    Abstract: During holographic recording, mixed gratings in photopolymer doped with gold nanoparticles are formed by the primary refractive index grating caused by periodic spatial distribution of photoproduct and the secondary absorption grating induced by spatial distributed nanoparticles because of local surface plasmon resonance. A mixed-grating model based on Kogelnik's coupled wave theory was investigated to analyze the volume holographic characteristics. Results show that both refractive index grating and absorption grating contribute to the improvement of diffraction efficiency; the mixed gratings also exert positive influence on angular selectivity.

     

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