J4 ›› 2010, Vol. 27 ›› Issue (1): 94-99.

• 非线性光学 • 上一篇    下一篇

温度对双光子光折变屏蔽光伏亮孤子相互作用的影响

吉选芒1 姜其畅1 刘劲松2   

  1. 1 山西运城学院物理与电子工程系,运城 044000;
    2 华中科技大学光电子科学与工程学院,武汉 430074
  • 出版日期:2010-01-28 发布日期:2009-12-30
  • 通讯作者: 吉选芒(1965-),男(汉),山西临猗人,山西运城学院教授,工学硕士,从事物理教学与光折变非线性光学方面的研究工作。 E-mail:jixuanmang@126.com
  • 基金资助:

    山西省高等学校科技开发项目资助的课题(200611042)

Effects of temperature on the interaction of two-photon photorefractive sreening-photovoltaic bright spatial solitons

JI Xuan-Mang1, JIANG Qi-Chang1, LIU Jin-Song2   

  1. 1 Department of physics and Electronic Engineering, Yuncheng University,Yuncheng ,044000;
    2 College of Optoelectronic Science and Engineering, Huanzhong University of Science and Technology,WuHan 430074
  • Published:2010-01-28 Online:2009-12-30

摘要:

为了得到温度对外加电场的双光子光伏光折变介质中屏蔽光伏亮孤子之间相互作用的影响结果。将两束相干光束作为入射波,在不同温度下采用数值方法求解波传播方程。结果表明:在室温基础上,两个同相位孤子波的相互作用随温度变化伴有融合现象,当温度升高到350K时两孤子可融合成一束稳定的孤子波;两个反相孤子相互排斥现象随温度变化而增强;相位差为 的两孤子,其相互作用随温度变化过程中有更多的能量转移,同时两孤子间的排斥现象随温度变化而增强。如果温度变化足够大时,两孤子作用过程中将发生崩溃现象。

关键词: 非线性光学, 双光子光折变效应, 屏蔽光伏亮孤子, 相互作用, 温度特性

Abstract:

In order to obtain the effect of temperature on the interactions of screening-photovoltaic bright spatial solitons in based two-photon photovoltaic photorefractive media,taking the two mutually coherent optical beam as the input wave,the beam propagation equation is solved numerically under different temperature. the result shows that the interaction of two in-phase solitons still have fusions along with temperature varying in the room temperature range. With the raising of the temperature of media to 350K, two in-phase solitons will fuse a solitary wave. With the varying of the temperature, the repulsions of two out-of–phase solitons are increasing. The repulsions and the energy transferring will are increasing with the varying of the temperature for the -phase-difference solitons. Two solitons will crash in the interactions process when the varying is great.

Key words: nonlinear optics, two-photon photorefractive effect, screening-photovoltaic bright spatial soliton, coherent interaction, temperature characteristics