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首页> 外文期刊>Optics Letters >Photoinduction of spontaneous surface relief gratings on Azo DR1 glass
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Photoinduction of spontaneous surface relief gratings on Azo DR1 glass

机译：自发表面起伏光栅在Azo DR1玻璃上的光诱导

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Surface relief gratings were spontaneously photoinduced from a collimated Nd:YAG laser beam at 532 nm on thin films of a disperse red 1 functionalized glass-forming compound. Pattern formation was studied by measuring the diffraction intensity of a He-Ne laser probe beam at 633 nm and by atomic force microscopy (AFM). The dependence of pattern formation on both irradiation time and intensity was studied. The gratings could be erased both optically and thermally. The orientation of the gratings is influenced by the polarization of the writing beam, and it is accompanied by strong diffraction of the incident light into the sample plane, thereby providing a way to couple and trap the light into the substrate. Interestingly, photobleaching upon prolonged irradiation yields transparent gratings, and the process is partially reversible upon thermal erasure. (C) 2016 Optical Society of America
机译：表面起伏光栅是由532 nm的准直Nd：YAG激光束在分散的红色1官能化玻璃形成化合物的薄膜上自发光诱导的。通过测量He-Ne激光探针束在633 nm处的衍射强度并通过原子力显微镜（AFM）研究图案形成。研究了图案形成对照射时间和强度的依赖性。可以光学和热方式擦除光栅。光栅的方向受写入光束偏振的影响，并且伴随着入射光到样品平面的强烈衍射，从而提供了一种将光耦合并捕获到基板中的方法。有趣的是，长时间照射后的光漂白产生透明的光栅，并且该过程在热擦除后是部分可逆的。 （C）2016美国眼镜学会

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