Design of electromagnetic cloaks and concentrators using form-invariant coordinate transformations of Maxwell's equations

被引：665

作者：

Rahm, Marco ^{[1
]}

Schurig, David ^{[1
]}

Roberts, Daniel A. ^{[1
]}

Cummer, Steven A. ^{[1
]}

Smith, David R. ^{[1
]}

Pendry, John B. ^{[2
]}

机构：

[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Dept Phys, London SW7 2AZ, England

来源：

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2008年 / 6卷 / 01期

关键词：

transformation optical design; form-invariant coordinate transformations of Maxwell's equations; electromagnetic theory; metamaterials; cloaking; anisotropic media; inhomogeneous media; numerical full-wave simulations; finite-element method;

D O I：

10.1016/j.photonics.2007.07.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The technique of applying form-invariant, spatial coordinate transformations of Maxwell's equations can facilitate the design of structures with unique electromagnetic or optical functionality. Here, we illustrate the transformation-optical approach in the designs of a square electromagnetic cloak and an omni-directional electromagnetic field concentrator. The transformation equations are described and the functionality of the devices is numerically confirmed by two-dimensional finite element simulations. The two devices presented demonstrate that the transformation optic approach leads to the specification of complex, anisotropic and inhomogeneous materials with well directed and distinct electromagnetic behavior. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：87 / 95

页数：9

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