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      Revisit the carpet cloak from optical conformal mapping

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          Abstract

          The original carpet cloak [Phys. Rev. Lett. 101, 203901 (2008)] was designed by a numerical method, the quasi-conformal mapping. Therefore its refractive index profile was obtained numerically. In this letter, we propose a new carpet cloak based on the optical conformal mapping, with an analytical form of a refractive index profile, thereby facilitating future experimental designs.

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          Transformation optics and metamaterials.

          Huanyang Chen, C. T. Chan, Ping Sheng (2010)
          Underpinned by the advent of metamaterials, transformation optics offers great versatility for controlling electromagnetic waves to create materials with specially designed properties. Here we review the potential of transformation optics to create functionalities in which the optical properties can be designed almost at will. This approach can be used to engineer various optical illusion effects, such as the invisibility cloak.
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            Optical Cloaking with Non-Magnetic Metamaterials

            Vladimir M. Shalaev, Alexander Kildishev, Uday K Chettiar … (2006)
            Artificially structured metamaterials have enabled unprecedented flexibility in manipulating electromagnetic waves and producing new functionalities, including the cloak of invisibility based on coordinate transformation. Here we present the design of a non-magnetic cloak operating at optical frequencies. The principle and structure of the proposed cylindrical cloak are analyzed, and the general recipe for the implementation of such a device is provided. The cloaking performance is verified using full-wave finite-element simulations.
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              Dielectric Optical Cloak

              , , … (2009)
              Invisibility or cloaking has captured human's imagination for many years. With the recent advancement of metamaterials, several theoretical proposals show cloaking of objects is possible, however, so far there is a lack of an experimental demonstration at optical frequencies. Here, we report the first experimental realization of a dielectric optical cloak. The cloak is designed using quasi-conformal mapping to conceal an object that is placed under a curved reflecting surface which imitates the reflection of a flat surface. Our cloak consists only of isotropic dielectric materials which enables broadband and low-loss invisibility at a wavelength range of 1400-1800 nm.
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                Author and article information

                Journal
                Publication date Created: 11 April 2013
                Article
                ArXiV ID: 1304.3349
                SO-VID: e46be799-bcc6-426a-960f-2715f4b1db41
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                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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                Comments 5 pages, 3 figures
                Categories physics.optics

                ScienceOpen disciplines: Optical materials & Optics
                Data availability:
                ScienceOpen disciplines: Optical materials & Optics

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