Near-Infrared Invisibility Cloak Engineered With Two-Phase Metal-Dielectric Composites

Author

Kormoczi, Koppany ; Szabo, Zsolt

Author_Institution

Dept. of Broadband Infocommunications & Electromagn. Theor., Budapest Univ. of Technol. & Econ., Budapest, Hungary

Volume

50

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

209

Lastpage

212

Abstract

An electromagnetic cloaking device made with composite materials and operating in the range of near-infrared light is presented. The invisibility cloak is designed with transformation optics and consists of 15 concentric rings of different anisotropic two-phase metal-dielectric composites. The anisotropic material parameters of the nanocomposites are expressed with the Maxwell-Garnett mixing rule. The finite element simulation of the concealment produced by the multilayer nanocomposite is discussed. The geometry of the inclusions and the material parameters of the composites are determined with differential evolution-based optimization.

Keywords

Maxwell equations; finite element analysis; nanocomposites; optical cloaking; optical design techniques; optical multilayers; Maxwell-Garnett mixing rule; anisotropic material parameters; anisotropic two-phase metal-dielectric composites; composite materials; concentric rings; differential evolution-based optimization; electromagnetic cloaking device; finite element simulation; inclusion geometry; multilayer nanocomposite; nanocomposites; near-infrared invisibility cloak; near-infrared light; transformation optics; Electromagnetic scattering; Electromagnetics; Magnetic multilayers; Nanocomposites; Nonhomogeneous media; Permittivity; Finite element method; meta-materials; nanocomposites; optimization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2281224

Filename

6749051