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Paper Abstract

Transformation optics1-5 uses the fact5 that optical media alter the geometry of space and time for light. A transformation medium performs an active coordinate transformation: electromagnetism in physical space, including the effect of the medium, is equivalent to electromagnetism in transformed coordinates where space appears to be empty. Some of the most striking applications of transformation optics include invisibility 1,2,4 or perfect lensing based on negative refraction.5 Here we discuss an idea for a superantenna based on coordinate transformations. This device is invisible for most of the rays while it condenses others into a single point. Our device relies on a three-dimensional extension of optical conformal mapping 2,3 as we describe below.

Paper Details

Date Published: 4 September 2008
PDF: 6 pages
Proc. SPIE 7029, Metamaterials: Fundamentals and Applications, 70290D (4 September 2008);
Show Author Affiliations
Tomáš Tyc, Masaryk Univ. (Czech Republic)
Univ. of St. Andrews (United Kingdom)
Ulf Leonhardt, Univ. of St. Andrews (United Kingdom)

Published in SPIE Proceedings Vol. 7029:
Metamaterials: Fundamentals and Applications
Mikhail A. Noginov; Nikolay I. Zheludev; Allan D. Boardman; Nader Engheta, Editor(s)

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