温度对双光子亮屏蔽光伏孤子自偏转的影响

姜其畅; 苏艳丽; 吉选芒

doi:10.3969/j.issn.1001-3806.2010.04.031

温度对双光子亮屏蔽光伏孤子自偏转的影响

1.
运城学院物理与电子工程系运城 044000

作者简介: 姜其畅(1980- ),男,讲师,理学硕士,主要从事激光器件及非线性光学方面的工作.E-mail:jiangsir009@163.com.

基金项目:
山西省高等学校科技开发资助项目(200611042)
中图分类号: O37

Effect of temperature on the self-deflection of two-photon bright screening photovoltaic solitons

1.
Department of Physics and Electronics Engineering, Yuncheng University, Yuncheng 044000, China
CLC number: O37

摘要: 为了研究温度对双光子光伏光折变介质中亮屏蔽光伏孤子动态演化及自偏转特性的影响,采用数值模拟的方法,得到了亮屏蔽光伏孤子的动态演化过程。结果表明,在一定温度变化范围内,随着温度的升高,介质支持的亮屏蔽光伏孤子的光强和半峰全宽均减小;当介质的温度变化不大时,孤子将克服较小的扰动而保持稳定的孤子传播,当温度变化足够大时,孤子将变得不稳定甚至崩溃;在一定温度范围内,孤子中心的自偏转距离随着温度的升高而增加,在特定温度下达到最大值,之后随着温度的升高而减小。这些结果对双光子空间孤子的理论发展具有一定的意义。
- 非线性光学 /
- 双光子光伏光折变介质 /
- 屏蔽光伏孤子 /
- 自偏转
Abstract: Effect of temperature on the dynamical evolution and self-deflection characteristics of bright screening photovoltaic spatial solitons in two-photon photovoltaic photorefractive media was investigated.Taking the bright solitons as the input solitary beam,numerically solving the beam propagation equation,it was found that the intensity profile and the full-width at half maximum of bright screening photovoltaic spatial solitons decreased with the raising of the temperature in a certain range of temperature.When the temperature of crystals changed in a small range,the stability of solitons could be persisted by overcoming the small perturbation.Solitons would become unstable or collapse when the crystal changed in a large range.The results show that the bending distance of the bright solitary beam centre increases with temperature rise,then reaches its maximum value at a specific temperature,and after that,decreases as temperature continuously rises.All of these results are benefit for the development of theory of two-photon spatial solitons.
- nonlinear optics /
- two-photon photovoltaic photorefractive media /
- screening photovoltaic solitons /
- self-deflection

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温度对双光子亮屏蔽光伏孤子自偏转的影响

作者简介: 姜其畅(1980- ),男,讲师,理学硕士,主要从事激光器件及非线性光学方面的工作.E-mail:jiangsir009@163.com.

Effect of temperature on the self-deflection of two-photon bright screening photovoltaic solitons

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温度对双光子亮屏蔽光伏孤子自偏转的影响

作者简介: 姜其畅(1980- ),男,讲师,理学硕士,主要从事激光器件及非线性光学方面的工作.E-mail:jiangsir009@163.com

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Effect of temperature on the self-deflection of two-photon bright screening photovoltaic solitons

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温度对双光子亮屏蔽光伏孤子自偏转的影响

作者简介: 姜其畅(1980- ),男,讲师,理学硕士,主要从事激光器件及非线性光学方面的工作.E-mail:jiangsir009@163.com.

Effect of temperature on the self-deflection of two-photon bright screening photovoltaic solitons

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温度对双光子亮屏蔽光伏孤子自偏转的影响

作者简介: 姜其畅(1980- ),男,讲师,理学硕士,主要从事激光器件及非线性光学方面的工作.E-mail:jiangsir009@163.com

English Abstract

Effect of temperature on the self-deflection of two-photon bright screening photovoltaic solitons

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