| 高斯波在媒质界面上的反射和折射 |
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| 引用本文： | 蔡祥宝.高斯波在媒质界面上的反射和折射[J].南京邮电大学学报(自然科学版),1996(1). |
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| 作者姓名： | 蔡祥宝 |
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| 作者单位： | 南京邮电学院基础课部 |
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| 摘 要： | 应用平面波谱分析法和菲涅耳公式，导出了高斯型电磁波入射到一平面媒质界面后反射波和折射波的积分公式，在傍轴近似下得到了反射波和折射波的近似解析解。从结果中可以看出，当入射高斯波是圆型高斯波时，反射波和折射波一般是椭圆型高斯波。
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| 关 键 词： | 电磁理论，高斯波，反射波，折射波，平面波谱 |
Reflection and Refraction of a Gaussian Beam from a Dielectric Interface |
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| Cai Xiangbao.Reflection and Refraction of a Gaussian Beam from a Dielectric Interface[J].Journal of Nanjing University of Posts and Telecommunications,1996(1). |
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| Authors: | Cai Xiangbao |
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| Abstract: | he plane wave spectrum analysis is applied to determined the reflection and refraction of a Gaussian beam from a dielectric interface. Using the Fresnel formulas, the reflected wave and refracted wave with both perpendicular and parallel polarization are derived. The approximate analytic solutions of the reflected and refracted waves under paraxial approximation are obtained. It is shown that the reflected wave and refracted wave are, in general,elliptical Gaussian beam when the incident Gaussian beam is circular. |
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| Keywords: | Electromagnetic theory Gaussian beam Reflected wave Refracted wave Plane wave spectrum |
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