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Superantenna made of transformation media

By Ulf Leonhardt


We show how transformation media can make a superantenna that is either completely invisible or focuses incoming light into a needle-sharp beam. Our idea is based on representating three-dimensional space as a foliage of sheets and performing two-dimensional conformal maps on each sheet. PACS 42.15.-i, 42.15.Eq, 42.15.Dp 1

Year: 2008
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