Radiation from a current sheet at the interface between a conventional medium and anisotropic negative refractive medium

[摘要] In this paper we investigate the radiation from a current sheet at the interface between semiinfinite isotropic positive refractive medium and anisotropic negative refractive medium. The distribution of the electric and magnetic fields in two regions and Poynting vectors associated with propagating and evanescent waves are calculated. The reasons for the singularity of the electric or magnetic field are briefly provided if the waves are evanescent in two media.

[学科分类] 材料工程

[关键词] Negative refractive medium;radiation;Poynting vector.