Isotropic nonmagnetic flat cloaks degenerated from homogeneous anisotropic trapeziform cloaks
Han, T. Qiu, C.-W.
Han, T.
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Abstract
We propose a novel kind of trapeziform cloak requiring only homogeneous anisotropic materials. Large-scale flat cloaks can be degenerated from the general trapeziform cloak with PEC inner boundary, and be realized by isotropic nonmagnetic materials for optical frequencies with controlled index profiles and improved invisibility. With the support of PEC inner boundary, large vehicles and objects of arbitrary shape can be concealed between the PEC and ground, and PEC can be firm by adding pillars in the cloaking space. Full-wave simulations validate the proposed cloaking concept, which is not only based on simple isotropic nonmagnetic materials but also realizable in practice. © 2010 Optical Society of America.
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Optics Express
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Date
2010-06-07
DOI
10.1364/OE.18.013038
Type
Article