外加电场双光子光伏光折变晶体中的空间孤子  

Spatial solitons in biased two-photon photovoltaic photorefractive media

作　　者：吉选芒[1] 姜其畅[1] 刘劲松[2] 

机构地区：[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

出　　处：《量子电子学报》2009年第6期722-727,共6页Chinese Journal of Quantum Electronics

基　　金：山西省高等学校科技开发项目资助的课题(200611042)

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理论中得到。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 neglectable, these solitons are just like the two-photon screening solitons. If the applied field absent, these solitons degenerate to the two-photon photovoltaic solitons under the close-circuit condition. Screening solitons and photovoltaic solitons theories can be obtained by simplifying this theory under the appropriate conditions.

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 

分 类 号：O437[机械工程—光学工程]