Cylindrical Invisibility Cloak with Simplified Material Parameters is Inherently Visible
Top Cited Papers
- 4 December 2007
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 99 (23), 233901
- https://doi.org/10.1103/physrevlett.99.233901
Abstract
It was proposed that perfect invisibility cloaks can be constructed for hiding objects from electromagnetic illumination [J. B. Pendry, D. Schurig, and D. R. Smith, Science 312, 1780 (2006)]. The cylindrical cloaks experimentally demonstrated [D. Schurig et al., Science 314, 977 (2006)] and theoretically proposed [W. Cai et al., Nat. Photon. 1, 224 (2007)] have however simplified material parameters in order to facilitate easier realization as well as to avoid infinities in optical constants. Here we show that the cylindrical cloaks with simplified material parameters inherently allow the zeroth-order cylindrical wave to pass through the cloak as if the cloak is made of a homogeneous isotropic medium, and thus visible. To all high-order cylindrical waves, our numerical simulation suggests that the simplified cloak inherits some properties of the ideal cloak, but finite scatterings exist.Other Versions
This publication has 12 references indexed in Scilit:
- Ideal Cylindrical Cloak: Perfect but Sensitive to Tiny PerturbationsPhysical Review Letters, 2007
- Full-Wave Invisibility of Active Devices at All FrequenciesCommunications in Mathematical Physics, 2007
- Optical cloaking with metamaterialsNature Photonics, 2007
- On perfect cloakingOptics Express, 2006
- Metamaterial Electromagnetic Cloak at Microwave FrequenciesScience, 2006
- On cloaking for elasticity and physical equations with a transformation invariant formNew Journal of Physics, 2006
- Optical Conformal MappingScience, 2006
- Controlling Electromagnetic FieldsScience, 2006
- Achieving transparency with plasmonic and metamaterial coatingsPhysical Review E, 2005
- Anisotropic conductivities that cannot be detected by EITPhysiological Measurement, 2003