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LiNbO3:Fe的光致光衍射
OPTICALLY INDUCED LIGHT DIFFRACTION IN LiNbO3: Fe
【摘要】 本文研究了单光束辐照厂LiNbO3:Fe的衍射光锥。它可以考虑为入射光束与其晶体后表面反射束及由晶体缺陷所致的散射光束的简并四波混频。光锥的锥角由其位相匹配条件△k=0确定。它可用Ewald球的作图法求解。同时也讨论了一种由时间分辨简并四波混频所产生的衍射光锥。实验结果与理论一致。
【Abstract】 In This paper, Diffraction cones are studied in LiNbO3:Fe. These diffracted cones are shown to result from the degenerate four wave mixing among the incident reflected and scattered beams induced by imperfections in the crystals. The angles of the cones are determined by phase matching condition △k = 0, which can be achieved by Ewald sphere construction from diffraction theory, while diffraction cones induced by degenerate four wave mixing of time-resolution are also discussed.
【基金】 中国科学院科学基金
- 【文献出处】 物理学报 ,Acta Physica Sinica , 编辑部邮箱 ,1987年09期
- 【被引频次】9
- 【下载频次】28