2007/06/30 by Min Yan, Zhichao Ruan, Min Qiu · 1 citation
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Cloak #Electromagnetic Scattering and Analysis #Electromagnetic radiation #Ideal (ethics) #Invisibility #Isotropy #Mathematics #Metamaterial #Metamaterials and Metasurfaces Applications #Optics #Photon #Physics #Realization (probability) #physics.optics
paper · pdf · doi:10.1103/physrevlett.99.233901
published as Phys. Rev. Lett. 99, 233901, 2007 · 10 pages, 3 figures
openalex publication_date 2007/12/04 · arxiv created 2008/02/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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)10.1126/science.1125907]. The cylindrical cloaks experimentally demonstrated [D. Schurig, Science 314, 977 (2006)10.1126/science.1133628] and theoretically proposed [W. Cai, Nat. Photon. 1, 224 (2007)10.1038/nphoton.2007.28] 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.