基于双光束耦合的双光子全息屏蔽光伏空间孤子

J4 ›› 2010, Vol. 27 ›› Issue (6): 716-721.

基于双光束耦合的双光子全息屏蔽光伏空间孤子

吉选芒¹，姜其畅¹，刘劲松²

1山西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

收稿日期:2009-12-24 修回日期:2010-03-11 出版日期:2010-11-28 发布日期:2010-11-19
通讯作者: 吉选芒（1965-），男，山西临猗人，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（200611042）

Two-photon holographic screening-photovoltaic solitons with two-wave mixing

JI Xuan-mang¹, JIANG Qi-chang¹, LIU Jinsong²

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

Received:2009-12-24 Revised:2010-03-11 Published:2010-11-28 Online:2010-11-19

摘要/Abstract

摘要：

证明了在双光束耦合的外加偏压的双光子光伏光折变晶体中存在一种新的全息屏蔽光伏空间孤子。在信号光远小于抽运光的条件下得出了亮（暗）孤子的解析解。数值模拟了这种孤子在稳态条件下的演化特性。结果表明：在给定的参量情况下，晶体可形成稳定的双光子明（暗）全息屏蔽光伏空间孤子。

关键词: 非线性光学, 双光束耦合, 双光子光折变效应, 耗散系统, 全息空间孤子

Abstract:

A new kind of two-photon holographic screening-photovoltaic solitons is proposed in biased photovoltaic-photorefractive materials based on two-wave mixing. The analytical solutions of bright (dark) solitons are obtained when the intensity of signal beams is smaller than that of pump beams. The dynamical evolutions of such solitons are simulated numerically under steady-state conditions. The result shows that the steady-state bright (dark) two-photon holographic screening-photovoltaic spatial solitons are possible in the crystal given some parameters.

Key words: nonlinear optics, two-wave mixing, two-photon photorefractive effect, dissipative systems, holographic spatial solitons

中图分类号:

O437

吉选芒，姜其畅，刘劲松. 基于双光束耦合的双光子全息屏蔽光伏空间孤子[J]. J4, 2010, 27(6): 716-721.

JI Xuan-mang, JIANG Qi-chang, LIU Jinsong. Two-photon holographic screening-photovoltaic solitons with two-wave mixing[J]. J4, 2010, 27(6): 716-721.

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