一类两维光学格子中稳定的复合孤子  

A new class of stable composite soliton in two-dimensional photonic lattice

作　　者：董亮伟[1] 叶芳伟[1] 王建东[1] 李永平[1] 

机构地区：[1]中国科学技术大学物理系,合肥230026

出　　处：《物理学报》2005年第9期4458-4462,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10274078)资助的课题.~~

摘　　要：对两维光学格子中非线性薛定谔方程一类新的稳态解做了数值分析,发现其在传播过程中逐渐衰变为一种稳定的复合孤子,孤子的两分量在传播过程中不断交换能量,总能量守恒.We demonstrate that a new class of stable composite soliton exists in a two-dimensional lattice. It can be produced by the evolution of a stationary solution of nonlinear Schordinger equation with a periodic potential modulation. We emphasize that this new kind of composite soliton is different from the dipole soliton reported before though they seem alike. The components of the soliton exchange energy during the propagations and the total energy of soliton conserves.

关 键 词：稳态解 两维格子 孤子 光学格子 复合 两维 非线性薛定谔方程 总能量守恒 传播过程 数值分析 

分 类 号：O413[理学—理论物理]