中空圆柱形边界条件下非线性介质中的晶格孤子*
Optical lattice solitons in nonlinear media under the condition of hollow cylinder boundary*
-
摘要: 本文采用自相似方法求解中空圆柱形边界贝塞尔晶格中变系数非线性薛定谔方程,得到了与数值模拟解一致的解析解,表明由非衍射贝塞尔光束诱导的光子晶格可支持稳定的自相似孤子簇.精确解ψmn是n+2层,2m极的多极孤立波,其形状及大小在传播过程中保持不变.Abstract: By using the self-similar method to solve the nonlinear Schr¨odinger eguation with distributed coefficients, the self-similar solitons in Bessel lattice are studied under the hollow cylinder boundary conditions and the analytical solutions are obtained. Analytical solutions and numerical solutions are found to be identical. The result indicates that optical lattices induced by non-diffractive Bessel beams are possible to support stable self-similar soliton clusters.
-
-
计量
- 文章访问数: 289
- HTML全文浏览数: 95
- PDF下载数: 0
- 施引文献: 0