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.

Keywords

CloakMetamaterialOpticsMicrowavePhysicsObject (grammar)InvisibilityScatteringShadow (psychology)CylinderRealization (probability)Computer scienceMathematicsArtificial intelligenceGeometry

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Ulf Leonhardt

An invisibility device should guide light around an object as if nothing were there, regardless of where the light comes from. Ideal invisibility devices are impossible, owing t...

2006 Science 3910 citations

Publication Info

Year
2006
Type
article
Volume
314
Issue
5801
Pages
977-980
Citations
7374
Access
Closed

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Cite This

David Schurig, Jack J. Mock, B.J. Justice et al. (2006). Metamaterial Electromagnetic Cloak at Microwave Frequencies. Science , 314 (5801) , 977-980. https://doi.org/10.1126/science.1133628

Identifiers

DOI
10.1126/science.1133628