电磁诱导增强的五阶非线性效应  

Fifth-Order Nonlinear Effects by Electromagnetical Induced Enhancement

作　　者：梅书迪 张欣怡 辛国国 杜英杰 Mei Shudi;Zhang Xinyi;Xin Guoguo;Du Yingjie(School of Physics,Northwest University,Xi'an,Shaanxi 710127,China)

机构地区：[1]西北大学物理学院,陕西西安710127

出　　处：《激光与光电子学进展》2021年第17期126-135,共10页Laser & Optoelectronics Progress

基　　金：国家量子光学与光量子器件国家重点实验室开放基金(KF201602);陕西省教育厅科学研究计划(16JK1758)。

摘　　要：为了将非线性效应强度的测量延伸到五阶非线性上,本文理论研究电磁诱导透明系统中的五阶非线性效应。研究结果表明,量子相干效应极大地增强电磁诱导透明系统的非线性效应,其中三阶互非线性的电极化率可以激发拉曼散射和四波混频,五阶互非线性的电极化率有两个完全不同的非线性吸收和色散,非线性吸收的五阶互非线性的电极化率可以激励四光子吸收,非线性增益的五阶互非线性可以激励超级拉曼散射,两者五阶互非线性的电极化率都可以激励六波混频。In order to extend the measurement of the nonlinear effect intensity to the fifth-order nonlinear,the fifthorder nonlinear effect in the electromagnetically induced transparency system is studied theoretically.The research results show that the quantum coherence effect greatly enhances the nonlinear effects of electromagnetically induced transparency system,including susceptibility of third-order nonlinear which can simulate Raman scattering and fourwave mixing,fifth-order nonlinear susceptibility with two completely different nonlinear absorption and dispersion.The fifth-order cross nonlinearity of the nonlinear absorption excites the four-photon absorption and the fifth-order cross nonlinearity of the nonlinear gain excites the super Raman scattering.The fifth-order cross nonlinearity of the electric polarization of the nonlinear absorption excites the six-wave mixing.

关 键 词：原子与分子物理学 电磁诱导透明 五阶互非线性效应 拉曼效应 六波混频 

分 类 号：O436[机械工程—光学工程]