期刊文献+

温度对屏蔽明空间孤子自偏转特性的影响 被引量:4

Temperature effects on the self-deflection of screening spatial bright solitons
下载PDF
导出
摘要 基于扩散效应以及暗辐射强度对温度的依赖关系,研究了温度对光折变屏蔽明空间孤子自偏转特性的影响.将明孤子作为入射孤子波,采用数值方法求解含扩散项的波传播方程.结果表明,考虑温度对暗辐射和扩散系数的影响,光折变屏蔽明空间孤子在传播过程中将发生自偏转,光束的中心沿一个抛物线轨迹偏转,并且光束中心的偏转距离随温度增加而增加,在一个特征温度处达到最大值,在高温区域和低温区域此偏转距离趋于零.光束中心的最大偏转距离和特征温度都随入射光强的增加而增加. Temperature effects on the self-deflection of bright screening spatial solitons in photorefractive crystal are investigated by taking into account the temperature dependence of both diffusion effects and dark irradiation. Taking the bright soliton as the input 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 solitary beam moves along a parabolic trajectory and, moreover, the bending distance of the bright solitary beam center increases first, reaches its maximum value at a characteristic temperature and, then decreases as temperature rises and, approaches zero at low and high temperatures. Both the maximum value and characteristic temperature increase with the input power density.
出处 《华中科技大学学报(自然科学版)》 EI CAS CSCD 北大核心 2006年第12期121-124,共4页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金 国家自然科学基金资助项目(10574051和10174025) 中国地质大学(武汉)优秀青年教师资助计划资助项目(CUGQNL0621)
关键词 非线性光学 空间光孤子 光折变效应 屏蔽 自偏转 nonlinear optics spatial optical solitons photorefractive effects screening self-deflection
  • 相关文献

参考文献6

  • 1Singh S R, Christodoulides D N. Evolution of spatial optical solitons in biased photorefractive media under steady state conditions[J]. Opt Comm, 1995, 118:569-576. 被引量:1
  • 2Christodoulides D N, Carvalho M I. Bright, dark and gray spatial solition states in photorefraetive media[J].J Opt Soe Am B, 1995, 12(9): 1 628-1 633. 被引量:1
  • 3Segev M, Valley G C, Bashaw M C, et al. Photovoltale spatial solitions[J].J Opt Soc Am B, 1997,14(7) : 1 772-1 781. 被引量:1
  • 4Liu J S, Lu K Q. Screening-photorefractive spatial solitions in biased photorefractive photovoltaic-photorefractive crystals and their self-deflection[J]. J Opt Soc Am B, 1999, 16(4): 550-555. 被引量:1
  • 5Liu J S, Zhang D Y, Hao Z H. Self-defection of screening-photovoltaic spatial solitons in biased photovoltaic photorefractive crystals[J]. J Modern Optics, 2001, 48(12): 1 803-1 810. 被引量:1
  • 6Cheng L J, Partovi A. Temperature and intensity dependence of photorefractive effect in GaAs App[J].Phys Lett, 1986, 49(21): 1 456-1 458. 被引量:1

同被引文献34

引证文献4

二级引证文献19

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部