| Dark Spatial Solitary Wave Due to Cascaded x^（2） Nonlinearity |
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| 作者姓名： | GAOGuan-Qie CHENXian-Feng CHENYu-Ping WANGFei-Yu XIAYu-Xing |
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| 作者单位： | InstituteofOpticsandPhotonics,DepartmentofPhysics,ShanghaiJiaoTongUniversity,Shanghai200240,China |
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| 摘 要： | 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.
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| 关 键 词： | 级联非线性 非线性薛定谔方程 计算物理 空间孤立子 量子光学 |
| 收稿时间： | 2003-10-27 |
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