Conformal carpet and grating cloaks

Details Conformal carpet and grating cloaks Conformal carpet and grating cloaks

2010-09-06

arxiv.org/abs/1009.1044v2

Physics

Optics

added Ref. 12; added 2 figures; reformatted

Scientific paper

We introduce a class of conformal versions of the previously introduced quasi-conformal carpet cloak, and show how to construct such conformal cloaks for different cloak shapes. Our method provides exact refractive-index profiles in closed mathematical form for the usual carpet cloak as well as for other shapes. By analyzing their asymptotic behavior, we find that the performance of finite-size cloaks becomes much better for metal shapes with zero average value, e.g., for gratings.

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