非均匀P-偏振电磁波在导电界面的反射系数曲线  

The curves of reflection coefficient of inhomogeneous P-electromagnetic wave at the interface of conductive media

作　　者：李瑞忠[1] 刘福平[2] 杨长春[1] 张红梅[1] 陈辉国[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]北京印刷学院,北京102600

出　　处：《地球物理学进展》2005年第2期342-347,共6页Progress in Geophysics

基　　金：中国科学院知识创新工程重大项目(KZCX1SW18)资助.

摘　　要：基于非均匀电磁波在导电媒质中传播时其相移常数和振幅衰减常数方向的不一致性,利用电磁波在导电媒质界面的边界条件,导出了非均匀P-偏振电磁波的反射系数.反射系数随入射角的变化曲线显示:当电磁波由电导率大的介质射向电导率小的介质时,在相移常数临界角和衰减常数临界角附近存在峰值,且反射系数的数值小于1,这一结果与全反射光的结果有明显的差异.Based on the difference between directions of phase shift constant and attenuation constant when the electromagnetic wave propagates in conductive medium, we use the boundary conditions of electromagnetic wave at the interface of conductive media and derive the reflection coefficient of inhomogeneous P-electromagnetic wave. The curves show that: When the electromagnetic wave incident from the medium with greater conductivity to the medium with smaller conductivity, there are peak values near the critical angles of phase shift constant and attenuation constant, and the reflection coefficient is smaller than 1. This conclusion is different from that of total reflection light obviously.

关 键 词：反射系数 P-偏振电磁波 相移常数 衰减常数 类全反射 

分 类 号：P631[天文地球—地质矿产勘探]