| 双光子光折变光伏明孤子的演化和自偏转 |
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| 引用本文： | 吉选芒,刘劲松. 双光子光折变光伏明孤子的演化和自偏转[J]. 山西师范大学学报：自然科学版, 2009, 23(3): 36-39 |
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| 作者姓名： | 吉选芒 刘劲松 |
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| 作者单位： | 吉选芒(山西运城学院物理与电子工程系,山西,运城,044000);刘劲松(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： | 山西省高等学校科技开发项目资助的课题 |
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| 摘 要： | 通过数值模拟的方法，研究了双光子光折变光伏明孤子的动态演化和自偏转特性．结果表明：在忽略扩散和损耗的情况下，光伏明孤子能在双光子光折变晶体中稳定传播．考虑扩散效应之后，明孤子光束中心将发生自偏转．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 双光子光伏光折变介质 光伏空间明孤子 演化和自偏转 |
The Evolution and Self-defltion of Photovoltaic Spatial Solitons in Two-photon Photovoltaic Photorefractive Media |
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| Affiliation: | JI Xuan-mang, LIU Jin-song( 1. Department of Physics and Electronic Engineering, Yuncheng University, Yuncheng 2. College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, WuHan 430074, Hubei, China) |
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| Abstract: | Dynamical evolution and seff-deflection of photovohaic spatial solitons in two-photon photovoltaic photorefractive media is numerically investigated. The results show that the two-photon screening spatial solitons can prooagate in the crystal in the case of neglecting the diffusion and loss. The diffusion effect can cause self-deflection for photovohaic spatial soliton. The degree of self-deflection of photovoltaic spatial soliton is increasing when incidence light to grow in intensity. At an extent of incidence light, the degree of self-deflection is decreasing when incidence light to grow in intensity. |
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| Keywords: | nonlinear optics two-photon photovohaic photorefractive media photovohaic bright spatial solitons evolution and self-defltion |
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