| 温度对光伏光折变晶体中高斯光束自偏转的影响 |
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| 引用本文： | 谢世杰,吉选芒,王金来,刘劲松. 温度对光伏光折变晶体中高斯光束自偏转的影响[J]. 量子电子学报, 2008, 25(6): 737-741 |
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| 作者姓名： | 谢世杰 吉选芒 王金来 刘劲松 |
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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;华中科技大学光电子科学与工程学院,湖北,武汉,430074 |
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| 基金项目： | 山西省高等学校科研开发项目 |
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| 摘 要： | 基于扩散效应及暗辐射强度对温度的依赖关系,研究了温度对有偏压光伏光折变晶体中高斯光束自偏转特性的影响.将高斯光束作为入射类孤子波,采用数值方法求解含扩散项的波传播方程.结果表明,当晶体的温度在一定的范围内变化时,光束中心沿一抛物线轨迹偏转,并且光束中心偏转距离随温度的增加而增加,在一个特定温度处达到最大值,之后随温度的增加而减小.当温度发生足够大的变化时,高斯光束将不稳定甚至崩溃.通过调节晶体的温度能改变高斯光束的自偏转.
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| 关 键 词： | 非线性光学 高斯光束 光伏光折变晶体 自偏转 温度特性 |
| 收稿时间： | 2008-01-30 |
Temperature effect on the self-deflection of Guassian beam in photovoltaic photorefractive crystal |
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| XIE Shi-jie,JI Xuan-mang,WANG Jin-lai,LIU Jin-song. Temperature effect on the self-deflection of Guassian beam in photovoltaic photorefractive crystal[J]. Chinese Journal of Quantum Electronics, 2008, 25(6): 737-741 |
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| Authors: | XIE Shi-jie JI Xuan-mang WANG Jin-lai LIU Jin-song |
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| Affiliation: | XIE Shi-jie JI Xuan-mang WANG Jin-lai Department of Physics , Electronic Engineering,Yuncheng University,Yuncheng 044000,China LIU Jin-song College of Optoelectronic Science , Engineering,Huazhong University of Science , Technology,Wuhan 430074,China |
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| Abstract: | Temperature effect on the self-deflection of Guassian beam in photofractive crystal is investigated by taking into account the temperature dependence of both diffusion effect and dark irradiation.Taking the Gaussian beam as the solitary beam,numerically solving the beam propagation equation in which the diffusion term has been taken into account,it is found that the center of the Guassian beam moves along a parabolic trajectory and,moreover the bending distance of the Guassian beam center increases first,re... |
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| Keywords: | nonlinear optics Gaussian beam photovoltaic photorefractive crystal self-deflection temperature dependence |
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