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 nonlinearity 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   作者單位： Institute of Optics and Photonics, Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China  刊 名： 理論物理通訊(英文版)  ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS  年，卷(期)： 2004 42(7)  分類號(hào)：   關(guān)鍵詞： cascaded nonlinearity   dark spatial soliton  

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