
Surface plasmon polaritons of symmetric and asymmetric metamaterial slabs
Zhang HuiFang(张惠芳), Cao Di(曹迪), Tao Feng(陶峰), Yang XiHua(杨希华), Wang Yan(王燕), Yan XiaoNan(阎晓娜), and Bai LiHua(白丽华)
Chin. Phys. B, 2010, 19 (2):
027301.
DOI: 10.1088/16741056/19/2/027301
The p and spolarized surface plasmon polaritons (SPPs) of symmetric and asymmetric slabs formed arbitrarily by four types of conventional materials: dielectrics, negative dielectric permittivity materials, negative magnetic permeability materials, and lefthanded materials are comprehensively analysed. The existence regions, dispersion relations, and excitation of SPPs in different frequency regions are investigated in detail. For symmetric slabs, the numbers and the frequency positions of surface polariton branches are quite different. At the same time, the pairs of the p or spolarized SPP branches occur in the same frequency range. For asymmetric slabs, the SPP branches in mid and highfrequency ranges are greatly different. In addition, the slab thickness has a great effect on SPPs of asymmetric and symmetric slabs. The attenuated total reflection spectra for the cases of p and s polarizations in these slabs are also calculated.
