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无衍射分立光子晶格

, PP. 478-485

Keywords: 非线性光学,光子晶格,无衍射光束,布里渊区光谱图,远场衍射图

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Abstract:

在加压光折变掺铈铌酸锶钡(SBN)晶体中观察了由无衍射分立光束所产生的光子晶格。重点实验观察了三束光干涉和六束光干涉两种情况下所产生的光子晶格,并利用远场衍射图、布里渊区光谱图和傅里叶空间频谱图比较了这两种光子晶格的相同点和区别,并且进行了理论分析。结果表明由三束光干涉产生的光子晶格更均匀稳定。另外,又分别模拟了由四光束干涉、五光束干涉、七光束干涉、八光束干涉、九光束干涉和十光束干涉这几种情况下所获得的光子晶格的传输图。

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