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Article Dans Une Revue Optics Letters Année : 2007

Electromagnetic analysis of cylindrical invisibility cloaks and the mirage effect

André Nicolet

Résumé

We present a finite-element analysis of a diffraction problem involving a coated cylinder enabling the electromagnetic cloaking of a lossy object with sharp wedges located within its core. The coating consists of a heterogeneous anisotropic material deduced from a geometrical transformation as first proposed by Pendry et al. [Science 312, 1780 (2006)]. We analyze the electromagnetic response of the cloak in the presence of an electric line source in p polarization and a loop of magnetic current in s polarization. We find that the electromagnetic field radiated by such a source located a fraction of a wavelength from the cloak is perturbed by less than 1%. When the source lies in the coating, it seems to radiate from a shifted location.
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Dates et versions

hal-00186683 , version 1 (11-11-2007)

Identifiants

  • HAL Id : hal-00186683 , version 1

Citer

Frédéric Zolla, Sébastien Guenneau, André Nicolet, Sir John Pendry. Electromagnetic analysis of cylindrical invisibility cloaks and the mirage effect. Optics Letters, 2007, 32 (9), pp.1069-1071. ⟨hal-00186683⟩
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