期刊
OPTICS COMMUNICATIONS
卷 271, 期 2, 页码 470-474出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2006.10.056
关键词
Bergman-Milton bounds; Maxwell Garnett estimates; Hashin-Shtrikman bounds; metamaterials
类别
The Bergman-Milton bounds provide limits on the effective permittivity of a composite material comprising two isotropic dielectric materials. These provide tight bounds for composites arising from many conventional materials. We reconsider the Bergman-Milton bounds in light of the recent emergence of metamaterials, in which unconventional parameter regimes for relative permittivities are encountered. Specifically, it is demonstrated that: (a) for nondissipative materials the bounds may be unlimited if the constituent materials have relative permittivities of opposite signs; (b) for weakly dissipative materials characterized by relative permittivities with real parts of opposite signs, the bounds may be exceedingly large. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据