Dmitry S. Filonov, Alexey P. Slobozhanyuk, Pavel A. Belov and Yuri S. Kivshar Double-shell metamaterial coatings for plasmonic cloaking physica status solidi (RRL) - Rapid Research Letters 6
A cloak for both hiding objects and shielding their interiors is studied. The structure consisting of a dielectric layer and a layer of an epsilon-near-zero material can suppress substantially the scattering from a sphere and at the same time produce zero electric field inside. The double-layer coating allows to cloak different objects with various material and geometrical parameters, but with the dimensions less or comparable with the radiation wavelength.
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