| 激光束在LiNbO3:Fe晶体中的异常衍射现象(Ⅱ)——o光入e光出的衍射 |
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| 引用本文： | 廖理几,陈为群,刘燕,蒋毅坚,张鹏翔,刘玉龙. 激光束在LiNbO3:Fe晶体中的异常衍射现象(Ⅱ)——o光入e光出的衍射[J]. 物理学报, 1990, 39(9): 1511-1519 |
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| 作者姓名： | 廖理几 陈为群 刘燕 蒋毅坚 张鹏翔 刘玉龙 |
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| 作者单位： | (1)北京工业大学应用物理系,北京100022; (2)中国科学院物理研究所,北京100080 |
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| 摘 要： | 本文首先叙述了一些o光入e光出衍射的实验现象,包括衍射图样随温度的变化以及相应的Kaman光谱的变化等。然后用文献[1]中的方法,对室温衍射图样进行了计算。证明这种偏振面旋转90°的异常衍射现象是空间相位光栅的各向异性衍射产生的。对一些其它实验现象也作了解释。关键词：
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| 收稿时间： | 1989-09-28 |
THE ANOMALOUS DIFFRACTION OF A LASER BEAM IN LiNbO3:Fe CRYSTAL (Ⅱ)——o→e DIFFRACTION |
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| LIAO LI-JI,CHEN WEI-QUN,LIU YAN,JIANG YI-JIAN,ZHANG PENG-XIANG and LIU YU-LONG. THE ANOMALOUS DIFFRACTION OF A LASER BEAM IN LiNbO3:Fe CRYSTAL (Ⅱ)——o→e DIFFRACTION[J]. Acta Physica Sinica, 1990, 39(9): 1511-1519 |
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| Authors: | LIAO LI-JI CHEN WEI-QUN LIU YAN JIANG YI-JIAN ZHANG PENG-XIANG LIU YU-LONG |
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| Abstract: | Some experimental facts concerning the anomalous diffraction pattern which arises when a laser beam o ray passes through a LiNbO3: Fe crystal with diffracted e ray and related phenomena in the Raman spectra are described. And the same method as was used in ref. [1] is applied to calculate the diffraction pattern quantitatively. Result of the calculations fits the experiment fairly well, this manifests the applicability of the theory of anisotropic diffraction of volume phase gratings to the anomalous diffraction with a 90° rotation of the polarization of the beams. Many other experimental facts are interpreted as well. |
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