Power propagation in homogeneous isotropic frequency-dispersive left-handed media

被引：135

作者：

Pacheco, J ^{[1
]}

Grzegorczyk, TM ^{[1
]}

Wu, BI ^{[1
]}

Zhang, Y ^{[1
]}

Kong, JA ^{[1
]}

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.89.257401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study transmission at a boundary between a right-handed medium (RHM: epsilon>0, mu>0) and a frequency dispersive left-handed medium [LHM: epsilon(omega)<0, mu(omega)<0 for some omega], both homogeneous and isotropic. In order to account for the dispersion, two types of signal spectra are considered. The first consists of two discrete frequencies, while the second is Gaussian. Explicit expressions for the time-domain fields are obtained, from which the time-averaged Poynting vectors and hence power flow vectors are calculated. In both cases, we find that waves refract at negative angles at a RHM-LHM interface.

引用

页码：1 / 257401

页数：4

共 13 条

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Brillouin L., 1960, WAVE PROPAGATION GRO

[2] Negative refractive index metamaterials supporting 2-D waves [J].