Surface solitons supported by one-dimensional composite Bessel optical lattices  

作　　者：董亮伟 杨晓雨 陈海云 

机构地区：[1]Institute of Information Optics,Zhejiang Normal University

出　　处：《Chinese Physics B》2008年第3期988-994,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No10704067);the Scientific Research Foundation of Education Bureau of Zhejiang Province of China(Grant No20060493)

摘　　要：We address the existence of surface solitons at an interface in a defocusing cubic medium with an imprinted one-dimensional （1D） composite Bessel optical lattice. This setting is composed of two Bessel lattices with different orders and different modulation depths, separated beside both sides of an interface. Stability analysis and numerical propagation simulations prove that solitons supported by the model are dynamically stable in the entire domain of their existence. The order of lattice determines the shape of soliton, and the amplitude of soliton depends on the lattice modulation depth. The experimental realization of the scheme is also proposed. Our results may provide another effective way of controlling the shapes of surface solitons and thus their evolutions by introducing a new freedom degree.We address the existence of surface solitons at an interface in a defocusing cubic medium with an imprinted one-dimensional （1D） composite Bessel optical lattice. This setting is composed of two Bessel lattices with different orders and different modulation depths, separated beside both sides of an interface. Stability analysis and numerical propagation simulations prove that solitons supported by the model are dynamically stable in the entire domain of their existence. The order of lattice determines the shape of soliton, and the amplitude of soliton depends on the lattice modulation depth. The experimental realization of the scheme is also proposed. Our results may provide another effective way of controlling the shapes of surface solitons and thus their evolutions by introducing a new freedom degree.

关 键 词：surface soliton one-dimensional （1D） Bessel lattice 

分 类 号：O437[机械工程—光学工程]