强非局域非线性介质中1+1维厄米-高斯损耗光孤子  

1+1 dimension Hermite-Gauss lossy solitons in strongly nonlocal nonlinear media

作　　者：白东峰[1] 卢宏炎[1] 

机构地区：[1]河南工业职业技术学院机电自动化学院,河南南阳473009

出　　处：《量子电子学报》2016年第5期584-589,共6页Chinese Journal of Quantum Electronics

基　　金：河南省基础与前沿技术研究项目;122300410416~~

摘　　要：用变分法研究了强非局域非线性有损耗介质中1+1维厄米高斯光束的传输特性,得到了光束参量在介质中传输所遵循的规律及其形成损耗光孤子所需要的临界功率。当初始功率接近临界功率时,光束的束宽按准正弦或准余弦规律作准周期展宽变化。通过比较,利用变分法所得到的解析解与数值解在光束传输一段较长距离内都符合的比较好。The propagation properties of 1 ＋ 1 dimension Hermite-Gauss beam in nonlocal nonlinear lossy media are investigated by using the variational method.The laws of beam parameters followed when propagating in medium and the critical power required by forming the lossy solitons are obtained.When the initial power is close to the critical power,the beam width expands periodically and obeys the quasi-sine or quasi-cosine law.By comparison,the analytical and numerical solutions using the variational method are in good agreement with a longer distance in beam propagation.

关 键 词：非线性光学 变分法 厄米高斯光束 损耗孤子 

分 类 号：O437[机械工程—光学工程]