Dark Spatial Solitary Wave Due to Cascaded x(2) Nonlinearity
The formation of the dark spatial solitary wave in cascaded second harmonic generation processes is numerically studied based on the nonlinear-coupled equations. It is shown that the solitary wave exists when the effective three-order no
nlinearity induced by cascaded second-order nonlinearity is negative.
作 者：
GAO Guan-Qie CHEN Xian-Feng CHEN Yu-Ping WANG Fei-yu XIA Yu-Xing
作者单位：
Institute of Optics and Photonics, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China
刊 名：
理论物理通讯(英文版) ISTIC SCI
英文刊名：
COMMUNICATIONS IN THEORETICAL PHYSICS
年，卷(期)：
200442(7)
分类号：
关键词：
cascaded nonlinearity dark spatial soliton
染雾