Helmholtz Bright Spatial Solitons and Surface Waves at Power-Law Optical Interfaces
Helmholtz Bright Spatial Solitons and Surface Waves at Power-Law Optical Interfaces
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幂律光接口处的亥姆霍兹亮空间孤子和表面波
DOI:
10.1155/2012/137967
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Christian J
中科院分区:
文献类型:
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作者:
Christian J
We consider arbitrary angle interactions between spatial solitons and the planar boundary between two optical materials with a single power‐law nonlinear refractive index. Extensive analysis has uncovered a wide range of new qualitative phenomena in non‐Kerr regimes. A universal Helmholtz‐Snell law describing soliton refraction is derived using exact solutions to the governing equation as a nonlinear basis. New predictions are tested through exhaustive computations, which have uncovered substantially enhanced Goos‐Hänchen shifts at some non‐Kerr interfaces. Helmholtz nonlinear surface waves are analyzed theoretically, and their stability properties are investigated numerically for the first time. Interactions between surface waves and obliquely incident solitons are also considered. Novel solution behaviours have been uncovered, which depend upon a complex interplay between incidence angle, medium mismatch parameters, and the power‐law nonlinearity exponent.
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