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利用1+2维Snyder-Mitchell模型讨论了柱坐标系下光束传输过程,得到了强非局域非线性介质中光束稳定传输的拉盖尔高斯型解,即空间光孤子解,并得到了入射光束稳定传输的临界功率.图示展现了几个低阶光孤子解,并发现了强非局域非线性介质中存在圆环形光孤子.
The 1 + 2-dimensional Snyder-Mitchell model is used to discuss the beam transmission in the cylindrical coordinate system. The Laguerre-Gaussian solution of the beam in a strongly nonlocal nonlinear medium is obtained, The critical power of the beam for stable transmission The illustration shows several lower-order soliton solutions and the existence of circular optical solitons found in strongly nonlocal nonlinear media.