Low scattering broadband cylindrical invisibility cloak in free-space

Details Low scattering broadband cylindrical invisibility cloak in free-space Low scattering broadband cylindrical invisibility cloak in free-space

2011-08-04

arxiv.org/abs/1108.1204v1

Physics

Classical Physics

16 pages, 5 figures

Scientific paper

The challenge to true invisibility is known to be cloaking of a non-ground plane object in a broad range of wavelength. By using a Mie scattering analytical model combined with an optimization algorithm, we present the first experimental verification of the broadband cylindrical invisibility cloak in free space. The cloak is realized with finite positive permittivity and positive permeability, which is a remarkable advantage of our approach. The experimental results demonstrate the feasibility of a new route to realize practical invisibility cloaks.

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