Determination of effective parameters in negative-index optical metamaterials

Author

Ding, Min ; Huang, Zhi-xiang ; Wu, Xian-liang ; Wang, Wang ; Wu, Ying-ying

Author_Institution

Key Lab. of Intell. Comput. & Signal Process., Anhui Univ., Hefei, China

Volume

3

fYear

2012

fDate

5-8 May 2012

Firstpage

1

Lastpage

4

Abstract

We present an enhanced algorithm based on the Kramers-Kronig (K-K) relations, which extracts the effective parameters such as the electric permittivity ε and magnetic permeability μ of a composite electromagnetic structure from calculated or measured transmission and reflection data. For the general structure, the retrieved parameters are broadly similar whether obtained by the traditional retrieval algorithm or the improved one. For the multilayer negative-index optical metamaterials, the improved algorithm is competent instead of the traditional one due to the calculation involves a branching problem, and the K-K relations can be applied to remove the problem.

Keywords

Kramers-Kronig relations; magnetic permeability; metamaterials; microwave spectra; optical multilayers; parameter estimation; permittivity; K-K relations; Kramers-Kronig relations; branching problem; composite electromagnetic structure; effective parameter determination; effective parameter extraction; electric permittivity; general structure; magnetic permeability; multilayer negative-index optical metamaterials; reflection data; transmission data; Magnetic materials; Metamaterials; Nonhomogeneous media; Optical reflection; Optical refraction; Optical variables control; Refractive index; Kramers-Kronig relations; effective parameters; multilayer; negative-index optical metamaterials;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4673-2184-6

Type

conf

DOI

10.1109/ICMMT.2012.6230136

Filename

6230136