| 双光子光折变晶体串联回路中屏蔽空间孤子对 |
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| 引用本文： | 吉选芒,刘劲松.双光子光折变晶体串联回路中屏蔽空间孤子对[J].科学通报,2009,54(19):2950-2956. |
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| 作者姓名： | 吉选芒 刘劲松 |
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| 作者单位： | 运城学院物理与电子工程系;华中科技大学光电子科学与工程学院; |
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| 基金项目： | 山西省高等学校科技开发项目(编号:200611042)资助 |
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| 摘 要： | 提出了在由两块双光子光折变晶体和一个电源通过导线串联而成的回路中存在双光子屏蔽空间孤子对的理论. 在适当的条件下, 导出了在晶体回路中两光束传播的耦合方程. 证明了在回路中存在暗-暗、明-暗和明-明双光子屏蔽孤子对. 研究结果表明, 孤子对中的两孤子通过光电流能相互影响, 它们的耦合能影响到另一个孤子的空间包络、动态演化和稳定性. 在光束的空间展宽远小于晶体宽度的极限条件下, 暗孤子通过光电流能影响明孤子, 但明孤子不能影响暗孤子. 对于明-暗孤子对, 调节暗孤子的强度能够影响明孤子的传播特性.
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| 关 键 词： | 非线性光学 双光子光折变效应 空间孤子对 |
| 收稿时间： | 2009-05-18 |
Screening soliton pairs in a biased series two-photon photorefractive crystal circuit |
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| JI XuanMang & LIU JinSong.Screening soliton pairs in a biased series two-photon photorefractive crystal circuit[J].Chinese Science Bulletin,2009,54(19):2950-2956. |
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| Authors: | JI XuanMang & LIU JinSong |
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| Institution: | JI XuanMang1 & LIU JinSong2 1 Department of Physics , Electronic Engineering,Yuncheng University,Yuncheng 044000,China,2 College of Optoelectronic Science , Engineering,Huazhong University of Science , Technology,Wuhan 430074 |
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| Abstract: | This paper presents an idea for the photorefractive spatial soliton, namely, screening solitons form in a biased series two-photon photorefractive crystal circuit consisting of two photorefractive crystals connected electronically by electrode leads in a chain with a voltage source. A system of two coupled equations is derived under appropriate conditions for two-beam propagation in the crystal circuit. The existence of dark-dark, bright-drak and bright-bright two-photon screening soliton pairs in such a ci... |
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| Keywords: | nonlinear optics two-photon photorefractive effects spatial soliton pairs |
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