| 匹配高斯光束在双光子光伏光折变介质中的自偏转 |
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| 引用本文： | 谢世杰,姜其畅,吉选芒.匹配高斯光束在双光子光伏光折变介质中的自偏转[J].山西师范大学学报,2009,23(2):55-57. |
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| 作者姓名： | 谢世杰 姜其畅 吉选芒 |
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| 作者单位： | 运城学院物理与电子工程系,山西,运城,044000
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| 基金项目： | 山西省高等学校科技开发基金的课题 |
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| 摘 要： | 通过数值模拟的方法,研究了无偏压双光子光伏光折变介质中匹配高斯光束的动态演化及自偏转特性.结果表明,对于给定的与双光子光伏光折变晶体参量匹配的高斯光束,在晶体中能演化为稳定的孤子波;考虑扩散效应之后,匹配高斯光束的光束中心将发生自偏转.高斯光束的自偏转程度首先随入射光强的增加而增加,当光强达到一定程度后随着入射光强的增加偏转程度反而减小.
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| 关 键 词： | 非线性光学 高斯光束 双光子光伏光折变介质 自偏转 |
Self-deflection of Matching Gauss beam in Two-photon Photovoltaic Photorefractive Media |
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| XIE Shi-jie,JIANG Qi-chang,JI Xuan-mang.Self-deflection of Matching Gauss beam in Two-photon Photovoltaic Photorefractive Media[J].Journal of Shanxi Teachers University,2009,23(2):55-57. |
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| Authors: | XIE Shi-jie JIANG Qi-chang JI Xuan-mang |
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| Institution: | Department of Physics and Electronics Engineering Yuncheng University;Yuncheng 044000;Shanxi;China |
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| Abstract: | Dynamical evolution and self-deflection of matching Gaussian beam in two-photon photovoltaic photorefractive media without external electric field is numerically investigated.The result indicates that,for a given two-photon photovoltaic photorefractive crystal,a Gaussian beam which matches with its parameters can evolve into steady-state solitary wave.The diffusion effect can cause self-deflection for the matching Gauss beam.The degree of self-deflection of matching Gauss beam is increasing when incidence l... |
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| Keywords: | nonlinear optics Gauss beam two-photon photovoltaic photorefractive media self-deflection |
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