Rotary dynamics of solitons in radially periodic optical lattices  

作　　者：周可雅 郭忠义 刘树田 

机构地区：[1]Department of Physics,Harbin Institute of Technology

出　　处：《Chinese Optics Letters》2010年第8期791-794,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.10674038 and 10974039);the National Basic Research Program of China(No. 2006CB302901)

摘　　要：We investigate the dynamics of strongly localized solitons trapped in remote troughs of radially periodic lattices with Kerr-type self-focusing nonlinearity. The rotary motion of solitons is found to be more stable for larger nonlinear wavenumbers, lower rotating velocity, and shorter radius of the trapping troughs. When the lattice is shrunk or expanded upon propagation, the solitons can be trapped in the original trough and move outward or inward, with their rotating linear velocity inversely proportional to the radius of the trapping troughs.We investigate the dynamics of strongly localized solitons trapped in remote troughs of radially periodic lattices with Kerr-type self-focusing nonlinearity. The rotary motion of solitons is found to be more stable for larger nonlinear wavenumbers, lower rotating velocity, and shorter radius of the trapping troughs. When the lattice is shrunk or expanded upon propagation, the solitons can be trapped in the original trough and move outward or inward, with their rotating linear velocity inversely proportional to the radius of the trapping troughs.

关 键 词：ROTATION 

分 类 号：O437[机械工程—光学工程]