J4 ›› 2009, Vol. 26 ›› Issue (6): 722-727.

• 非线性光学 • 上一篇    下一篇

外加电场双光子光伏光折变晶体中的空间孤子

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
  • 发布日期:2009-11-03
  • 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,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)

Spatial solitons in biased two-photon photovoltaic photorefractive media

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
  • Online:2009-11-03

摘要:

证明在外加电场的双光子光伏光折变晶体中存在明、暗稳态空间孤子波,它源于双光子光折变效应。结果表明:当光伏效应可以忽略时,这种孤子类似于双光子屏蔽孤子;当没有外加电场时,它退化成闭路条件下的双光子光伏孤子。在不同条件下屏蔽孤子和光伏孤子理论都可以从这一统一理论中得到。

关键词: 非线性光学, 光折变材料, 双光子光折变效应, 空间孤子

Abstract:

Steady-state bright (dark) spatial solitons are predicted for biased two-photon photovoltaic photorefractive media, which are due to two-photon photorefractive effect . When the photovoltaic effect is negligible, these solitons are just like the two-photon screening solitons. If the applied field absent, these solitons degenerate into the two-photon photovoltaic solitons under the close-circuit condition. screening solitons and photovoltaic solitons throries can obtained by simplifying the universal theory under the appropriate conditions.

Key words: nonlinear optics, photorefractive material, two-photon photovoltaic photorefractive effect, spatial solitons