温度对双光子独立明-暗空间屏蔽孤子对稳定性的影响

吉选芒; 刘劲松

温度对双光子独立明-暗空间屏蔽孤子对稳定性的影响

吉选芒^1, ,,
刘劲松²

1.
运城学院物理与电子工程系,山西运城044000;
2.
华中科技大学光电子科学与工程学院,湖北武汉430074

详细信息

通讯作者:
吉选芒(1965-)，男，山西临猗人，山西运城学院教授，工学硕士，主要从事物理教学与光折变非线性光学方面的研究工作。

中图分类号: TN206;O437
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出版历程
- 刊出日期: 2010-03-12

Effects of temperature on stability of two-photon separate screening bright-dark spatial soliton pair

JI Xuan-mang^{1
, ,},
LIU Jin-song²

1.
Department of Physics and Electronic Engineering,Yuncheng University,Yuncheng 044000,China;
2.
College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

摘要

摘要: 在忽略损耗和扩散的情况下,采用数值方法研究温度对串联双光子光折变晶体回路中独立明-暗屏蔽孤子对演化和稳定性的影响。结果表明：在给定温度下晶体回路中形成稳态明-暗孤子对，当一个晶体的温度改变且温度变化不大时，另一块晶体中支持的孤子将转变为另一个稳态孤子;当温度变化过大时，这个孤子将变得不稳或发生周期性的压缩或膨胀甚至崩溃。在独立屏蔽空间孤子对中，暗孤子对温度的敏感程度比明孤子强。
- 非线性光学 /
- 双光子光折变效应 /
- 光折变空间孤子对 /
- 温度特性
Abstract: In the case of neglecting the loss and diffusion process, the effects of temperature on the evolution and stability of a separate screening bright-dark soliton pair formed in a serial two-photon photorefractive crystal circuit are investigated with numerical method. The result shows that a steady-state bright-dark soliton pair are taken shape in a crystal circuit at given temperature, the soliton supported by the other crystal evolves into another steady-state soliton if the temperature change of one crystal is quite small, whereas it becomes unstable and experience lager cycles of compression or break up into beam filaments if the temperature different is big enough. The dark soliton is more sensitive to the temperature change than the bright one in the separate screening spatial soliton pair.
- nonlinear optics /
- two-photon photorefractive effect /
- photorefractive spatial soliton pairs /
- temperature characteristic

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参考文献(1)

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