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Phys Rev Lett. 2010 Jul 2;105(1):013901. Epub 2010 Jun 28.

Superscattering of light from subwavelength nanostructures.

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  • 1Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA.

Abstract

We provide a theoretical discussion of the scattering cross section of individual subwavelength structures. We show that, in principle, an arbitrarily large total cross section can be achieved, provided that one maximizes contributions from a sufficiently large number of channels. As a numerical demonstration, we present a subwavelength nanorod with a plasmonic-dielectric-plasmonic layer structure, where the scattering cross section far exceeds the single-channel limit, even in the presence of loss.

PMID:
20867445
[PubMed]
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