Generalized Lorentz-Lorenz method for the retrieval of plasmonic nanocluster metamaterial effective parameters

Author

Vallecchi, A. ; Sozio, V. ; Albani, Matteo ; Capolino, Filippo

Author_Institution

Dept. of Inf. Eng., Univ. of Siena, Siena, Italy

fYear

2013

fDate

8-12 April 2013

Firstpage

2994

Lastpage

2996

Abstract

Generalized Lorentz-Lorenz formulas are developed for the effective parameters of metamaterials composed of a periodic arrangement of plasmonic nanoclusters (NCs). Each NC exhibits both electric and magnetic polarizabilities but its dimension is in general not very subwavelength. The obtained formulas for the metamaterial effective electric and magnetic characteristics duly consider both electric and magnetic polarizabilities and naturally describe the effects of frequency and spatial dispersion. Homogenization results for a material considered here show the effects of spatial dispersion near the fundamental electric resonance.

Keywords

nanophotonics; nanostructured materials; optical metamaterials; permeability; permittivity; plasmonics; polarisability; electric polarizabilities; electric resonance; frequency dispersion; generalized Lorentz-Lorenz method; homogenization; magnetic polarizabilities; plasmonic nanocluster metamaterial effective parameters; spatial dispersion; Lattices; Magnetic materials; Magnetic resonance; Metamaterials; Permittivity; Plasmons; Metamaterials; constitutive relations; electromagnetic multipoles; scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2013 7th European Conference on

Conference_Location

Gothenburg

Print_ISBN

978-1-4673-2187-7

Electronic_ISBN

978-88-907018-1-8

Type

conf

Filename

6546852