【作者】 陈将伟； 张豹山； 唐东明； 杨燚； 鹿牧； 陆怀先；

【Author】 CHEN Jiangwei ZHANG Baoshan TANG Dongming YANG Yi LU Mu LU Huaixian (Department of physics,Nanjing University,Nanjing 210093)

【机构】 南京大学物理系；

【摘要】 通常的谐变电磁场边界条件方程在损耗媒质界面往往不能同时成立,这是因为界面两边媒质不同的损耗,可导致界面处电磁场相关的通量和环量不再是谐变函数。考虑了媒质损耗对谐变电磁场方程及其边界条件方程的影响,我们导出了"新"的斜入射波与反射波、折射波的振幅和方向关系式。关系式表明,传播常数的虚部和阻抗系数对折射波的传播方向也会有影响,进而影响界面的反射率和折射率。这些结论为在一定程度上检验文中提出的损耗媒质中谐变电磁场方程等提供了可能的实验途径,也为调节电磁波的传播方向、电磁波在界面的反射率、折射率等提供了新的可能方法。更多还原

【Abstract】 It is found that the ordinary boundary conditions of harmonic electromagetic fields at interface of lossy media may not be satisfied simultaneously,which is due to that the different damping terms between the two media may lead the flux at Gauss surface and circumfluence along close loop of electromagetic fields near interface to be no longer harmonic.Considering effects of media loss on equations of harmonic electromagnetic fields and their boundary coditions,we obtain new relations of amplitude and direction among the incident,reflected and refracted waves.It is shown that both imaginary part of propagation constant and wave resistivity may alter direction of the refraction wave, then alter the coefficients of reflection and refraction.These results offer the possible experiment way to test in some degree the equations of harmonic electromagnetic fields given in the text,and the feasible way to adjust direction of wave,coefficients of reflection and refraction,and so on.更多还原