Bilayer metamaterial: analysis of left-handed transmission and retrieval of effective medium parameters

TitleBilayer metamaterial: analysis of left-handed transmission and retrieval of effective medium parameters
Publication TypeJournal Article
Year of Publication2007
AuthorsGuven K, Cakmak AO, Caliskan MD, Gundogdu TF, Kafesaki M, Soukoulis CM, Ozbay E
Journal TitleJournal of Optics a-Pure and Applied Optics
Volume9
PagesS361-S365
Date PublishedSep
Type of ArticleProceedings Paper
ISBN Number1464-4258
Accession NumberISI:000248953700014
Keywordsmetamaterial, negative index, negative refraction, negative-index, optical metamaterials, refraction, split-ring resonator, wire pairs
Abstract

We report an experimental and numerical analysis of a planar metamaterial designed for normal-to-plane propagation, and operating at microwave frequencies. The metamaterial consists of cutwire and wire patterns, which are arranged periodically on both sides of a dielectric layer, in the form of a bilayer. The left-handed transmission band of the metamaterial is demonstrated experimentally. The effective index of refraction retrieved from the S parameters is found to be negative within this transmission band. An independent negative refraction experiment supports the existence of the negative index of refraction for the metamaterial.

DOI10.1088/1464-4258/9/9/s13
Alternate JournalJ. Opt. A-Pure Appl. Opt.