| 二阶光学非线性方程的摄动解与系统的极化率 |
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| 引用本文： | 项颖,罗诗裕,邵明珠.二阶光学非线性方程的摄动解与系统的极化率[J].东莞理工学院学报,2008,15(3):48-52. |
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| 作者姓名： | 项颖 罗诗裕 邵明珠 |
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| 作者单位： | 1. 广东工业大学,信息工程学院,广州,510006
2. 东莞理工学院,电子系,广东东莞,523808 |
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| 摘 要： | 对于非中心对称的介质，在经典力学框架内，把偶极子的运动方程化为含有二次项的二阶非线性微分方程，并用摄动法找到了系统的零阶近似解和一阶近似解．由于二阶非线性的存在，当输入信号为单色光时，系统将输出直流信号、倍频信号与和频或差频信号等，并进一步分析了介质的零阶极化率和一阶极化率．
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| 关 键 词： | 非线性极化 摄动法 倍频 极化率 |
Perturbation Solution of 2-Order Optical Nonlinear Equation and Polarizability in the System |
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| XIANG Ying,LUO Shi-yu,SHAO Ming-zhu.Perturbation Solution of 2-Order Optical Nonlinear Equation and Polarizability in the System[J].Journal of Dongguan Institute of Technology,2008,15(3):48-52. |
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| Authors: | XIANG Ying LUO Shi-yu SHAO Ming-zhu |
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| Institution: | XIANG Ying Information Engineering College of Guangdong University of Technology,Guangzhou 510006,China,LUO Shi-yu SHAO Ming-zhu Department of Electronic Engineering,Dongguan University of technology,Dongguan 523808 |
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| Abstract: | For a medium with the non-center symmetry,the motion equation of dipole is reduced to 2-order nonlinear differential equation which contains 2-order term in the frame of classical mechanics.The zero-order and 1-order approximation solution are found by using perturbed method.The direct current signal,double frequency signal, summed frequency signal and different frequency signal may be discovered from the perturbed solution if the input signal is single colored light.From the relation between polarized inte... |
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| Keywords: | nonlinearity polarization perturbed method double frequency polarizability |
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