单轴各向异性半无限左手化材料中的表面极化激元

Surface polaritons in semi-infinite uniaxially anisotropic left-handed material

根据表面极化激元的电磁场,讨论了p偏振和s偏振情况下,单轴各向异性半无限左手化材料中的表面极化激元的存在区域,以及表面极化激元的色散关系.结果表明极化激元可以存在于非左手化材料中,同时还可以存在于单轴各向异性左手化材料中.研究了单轴各向异性左手化材料中平行于轴的介电分量和磁导率分量对表面极化激元的影响.

On the base of the electromagnetic fields of the surface polaritons,the existing region and the dispersion relations of the surface polaritons of a semiinfinite uniaxially anisotropic left-handed material are studied.And two typical cases are discussed,one is for p polarization,another is for s polarization.The results show that there can exist surface polaritons in the uniaxially anisotropic left-handed material. Moreover, the effect of the (uniaxially) anisotropic structure on the surface polaritons is also investigated.