Optimization of cloaking in all dielectric multi-layer structures

Author

Mirzaei, Abdolreza ; Shadrivov, I.V. ; Miroshnichenko, Andrey E. ; Kivshar, Yuri S.

Author_Institution

Nonlinear Phys. Center & Center for Ultra-high bandwidth Devices for Opt. Syst. (CUDOS), Australian Nat. Univ., Canberra, ACT, Australia

fYear

2014

fDate

25-28 Aug. 2014

Firstpage

208

Lastpage

210

Abstract

We employ a genetic algorithm to design multi-layer all-dielectric nanostructures with optimally reduced scattering cross-section. Using isotropic, homogeneous and nonmagnetic materials described by experimental data, our approach allows near 80 fold suppression of scattering cross section in optical wavelengths. We cover several dielectric cylindrical scatterers and demonstrate that after limited number of coating layers, adding more coatings does not result in improving the cloaking.

Keywords

conductors (electric); genetic algorithms; invisibility cloaks; magnetic materials; nanostructured materials; scattering; cloaking optimization; dielectric cylindrical scatterers; dielectric multilayer structures; genetic algorithm; homogeneous materials; isotropic materials; multilayer all-dielectric nanostructures; nonmagnetic materials; optical wavelengths; scattering cross-section; Coatings; Dielectrics; Gallium arsenide; Genetic algorithms; Optimization; Scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on

Conference_Location

Lyngby

Print_ISBN

978-1-4799-3450-8

Type

conf

DOI

10.1109/MetaMaterials.2014.6948649

Filename

6948649