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Tessellated and stellated invisibility.

Authors
  • Diatta, André
  • Nicolet, André
  • Guenneau, Sébastien
  • Zolla, F
Type
Published Article
Journal
Optics Express
Publisher
The Optical Society
Publication Date
Aug 03, 2009
Volume
17
Issue
16
Pages
13389–13394
Identifiers
PMID: 19654744
Source
Medline
License
Unknown

Abstract

We derive the expression for the anisotropic heterogeneous matrices of permittivity and permeability associated with two-dimensional polygonal and star shaped cloaks. We numerically show using finite elements that the forward scattering worsens when we increase the number of sides in the latter cloaks, whereas it improves for the former ones. This antagonistic behavior is discussed using a rigorous asymptotic approach. We use a symmetry group theoretical approach to derive the cloaks design.

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