Broadband Invisibility by Non-Euclidean Cloaking

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Authors	LEONHARDT Ulf TYC Tomáš
Year of publication	2009
Type	Article in Periodical
Magazine / Source	Science
MU Faculty or unit	Faculty of Science
Citation
Web	http://www.sciencemag.org/cgi/content/abstract/sci;323/5910/110?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&fulltext=tyc&searchid=1&FIRSTINDEX=0&resourcetype=HWCIT
Field	Optics, masers and lasers
Keywords	Invisibility; cloaking; non-Euclidean; geometry
Description	Invisibility is an application 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. All of the previous proposals for invisibility require materials with extreme properties. We show that transformation optics of a curved, non-Euclidean space relax these requirements and can lead to invisibility in a broad band of the spectrum.
Related projects:	Highly Parallel and Distributed Computing Systems Mathematical structures and their physical applications