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Plasmon-active mixed gratings in volume holographic polymeric nanocomposites

机译:体积全息聚合物纳米复合材料中的等离激元活性混合光栅

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摘要

The plasmon-active mixed gratings were demonstrated and characterized in a volume holographic polymer nanocomposite. The counter-diffusion physical mechanism between the polymeric component and nanoparticles related to the holographic mixed gratings was analyzed. By dispersing gold nanoparticles in the bulk holographic polymer, a plasmon-active strong absorption grating was introduced into the polymeric refractive-index gratings. The nanocomposites with several volume ratios of doped gold nanoparticles were fabricated. Holographic angular selectivity curves of saturated diffraction efficiencies were measured for the prepared samples. Significantly suppression of side lobes with the improved diffraction efficiency was observed in the gold nanoparticles doped photopolymer. It is found that the noticeable holographic-apodization phenomenon is caused by the plasmon-active strong absorption grating.
机译:在体积全息聚合物纳米复合材料中演示并表征了等离激元活性混合光栅。分析了与全息混合光栅有关的聚合物组分和纳米颗粒之间的反扩散物理机理。通过将金纳米颗粒分散在整体全息聚合物中,将等离激元活性强吸收光栅引入聚合物折射率光栅中。制备了具有若干体积比的掺杂金纳米颗粒的纳米复合材料。测量制备样品的饱和衍射效率的全息角选择性曲线。在金纳米颗粒掺杂的光敏聚合物中观察到具有改善的衍射效率的旁瓣显着抑制。发现明显的全息切趾现象是由等离激元活性的强吸收光栅引起的。

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