Abstract We address the existence of surface solitons at an interface in a defocusing cubic medium with an imprinted one-dimensional ($1$D) 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.
Received: 29 October 2007
Revised: 07 December 2007
Accepted manuscript online:
(Beam trapping, self-focusing and defocusing; self-phase modulation)
Fund: Project supported by the National
Natural Science Foundation of China (Grant No 10704067) and the
Scientific Research Foundation of Education Bureau of Zhejiang
Province of China (Grant No 20060493).
Cite this article:
Dong Liang-Wei(董亮伟), Yang Xiao-Yu(杨晓雨), and Chen Hai-Yun(陈海云) Surface solitons supported by one-dimensional composite Bessel optical lattices 2008 Chin. Phys. B 17 988
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