| 多组元复合介质的高阶非线性极化率 |
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| 引用本文： | 吴去非.多组元复合介质的高阶非线性极化率[J].苏州大学学报(医学版),1996(4). |
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| 作者姓名： | 吴去非 |
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| 作者单位： | 苏州大学物理科学与技术学院 |
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| 摘 要： | 如果复合介质内的电场是均匀的,即各组元内的局域电场的空间涨落充分小,就可以用复合介质的有效非线性介电函数作泰勒展开的方法,导出n组元复合介质的有效高阶非线性极化率的公式。公式在低密度极限下对三组元的复合体系作了应用。
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| 关 键 词： | 复合介质 高阶非线性极化率 退耦近似 |
HIGH ORDER NONLINEAR SUSCEPTIBILITIES OF MULTICOMPONENT COMPOSITE MEDIUM |
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| Wu Qufei.HIGH ORDER NONLINEAR SUSCEPTIBILITIES OF MULTICOMPONENT COMPOSITE MEDIUM[J].Journal of Suzhou University(Natural Science),1996(4). |
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| Authors: | Wu Qufei |
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| Institution: | School of Physical Science and Technology |
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| Abstract: | We deal with the effective high - order nonlinear susceptibilities of a weakly nonlinear dielectric composite system by Taylor Expansion of effective nonlinear dielectric function of composite medium. General expressions for the susceptibilities are derived. These results are strictly valid if the electrical field in each component is uniform.That is,the fluctuation of local electrical field of each component is small enough. The expressions are applied to the case of three -component composite system in Low Density Limit. . |
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| Keywords: | Composite medium High order Nonlinear Susceptibilitits Decoupling Approximation |
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