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, 314 (5801), 977-80

Metamaterial Electromagnetic Cloak at Microwave Frequencies

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Metamaterial Electromagnetic Cloak at Microwave Frequencies

D Schurig et al. Science.

Abstract

A recently published theory has suggested that a cloak of invisibility is in principle possible, at least over a narrow frequency band. We describe here the first practical realization of such a cloak; in our demonstration, a copper cylinder was "hidden" inside a cloak constructed according to the previous theoretical prescription. The cloak was constructed with the use of artificially structured metamaterials, designed for operation over a band of microwave frequencies. The cloak decreased scattering from the hidden object while at the same time reducing its shadow, so that the cloak and object combined began to resemble empty space.

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