title: Conformal carpet and grating cloaks.
abstract: 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.
authors.affiliation: Departement Physik, Universität Basel, Switzerland. Roman.Schmied@unibas.ch
authors.forename: Roman
authors.initials: R
authors.lastname: Schmied
authors.forename: Jad C
authors.initials: JC
authors.lastname: Halimeh
authors.forename: Martin
authors.initials: M
authors.lastname: Wegener