Departmental Papers (ESE)
Title
Single-Negative, Double-Negative, and Low-index Metamaterials and their Electromagnetic Applications
Document Type
Journal Article
Date of this Version
February 2007
Abstract
Metamaterials that are engineered media characterized by electromagnetic constitutive parameters with anomalous values may show counterintuitive properties in their interactions with electromagnetic waves. Here, we review some of the properties and potential applications we have recently presented in the technical literature: properties and applications in which plasmonic materials and metamaterials may be utilized to overcome some conventional physical limits. Resonances arising in electrically small regions of interface where these materials are paired with common materials are shown to be potentially attractive for this purpose in some electromagnetic problems, for instance, in guiding and radiating structures. The anomalous refractive properties at such "complementary" interfaces and the negative values of polarizability attainable in such materials are also shown to offer potentials for several applications.
Keywords
metamaterials, permittivity, permeability, composite materials, resonators, waveguides, antennas, negative index material, negative refraction
Date Posted: 13 July 2007
This document has been peer reviewed.
Comments
Copyright 2007 IEEE. Reprinted from IEEE Transactions on Antennas and Propagation Magazine, Volume 49, Issue 1, February 2007, pages 23-36.
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