Broadband Invisibility by Non-Euclidean Cloaking

Ulf Leonhardt, Tomas Tyc

Research output: Contribution to journalArticlepeer-review

370 Citations (Scopus)

Abstract

Invisibility and negative refraction are both applications of transformation optics where the material of a device performs a coordinate transformation for electromagnetic fields. The device creates the illusion that light propagates through empty flat space, whereas in physical space, light is bent around a hidden interior or seems to run backward in space or time. All of the previous proposals for invisibility require materials with extreme properties. Here we show that transformation optics of a curved, non- Euclidean space ( such as the surface of a virtual sphere) relax these requirements and can lead to invisibility in a broad band of the spectrum.

Original languageEnglish
Pages (from-to)110-112
Number of pages3
JournalScience
Volume323
Issue number5910
DOIs
Publication statusPublished - 2 Jan 2009

Keywords

  • NEGATIVE REFRACTIVE-INDEX
  • METAMATERIALS

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