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


Journal Article

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. © 2007 Elsevier B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Rahm, M; Schurig, D; Roberts, DA; Cummer, SA; Smith, DR; Pendry, JB

Published Date

  • April 1, 2008

Published In

Volume / Issue

  • 6 / 1

Start / End Page

  • 87 - 95

International Standard Serial Number (ISSN)

  • 1569-4410

Digital Object Identifier (DOI)

  • 10.1016/j.photonics.2007.07.013

Citation Source

  • Scopus