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Optica Publishing Group
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference
  • OSA Technical Digest (CD) (Optica Publishing Group, 2009),
  • paper JThC1
  • https://doi.org/10.1364/CLEO.2009.JThC1

Non-Euclidean Ideas for Broadband Invisibility

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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 backwards in space or time. All the previous proposals for invisibility require materials with extreme properties. We show that transformation optics of a curved, non-Euclidean space, such as the surface of a virtual sphere, relaxes these requirements and can lead to invisibility in a broad band of the spectrum.

© 2009 Optical Society of America

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