量子电子学报, 2016, 33 (5): 584, 网络出版: 2016-10-21
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
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。
Abstract
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.
白东峰, 卢宏炎. 强非局域非线性介质中1+1维厄米-高斯损耗光孤子[J]. 量子电子学报, 2016, 33(5): 584. BAI Dongfeng, LU Hongyan. 1+1 dimension Hermite-Gauss lossy solitons in strongly nonlocal nonlinear media[J]. Chinese Journal of Quantum Electronics, 2016, 33(5): 584.