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Reducing ohmic losses in metamaterials by geometric tailoring

TitleReducing ohmic losses in metamaterials by geometric tailoring
Publication TypeJournal Article
Year of Publication2009
AuthorsGuney DO, Koschny T, Soukoulis CM
Journal TitlePhysical Review B
Volume80
Pages125129
Date Published09/01
ISBN Number1098-0121
Accession NumberISI:000270383300050
Keywordsexperimental-verification, negative-index, optical frequencies, refraction, split-ring resonators
Abstract

Losses in metamaterials render the applications of such exotic materials less practical unless an efficient way of reducing them is found. We present two different techniques to reduce ohmic losses at both lower and higher frequencies, based on geometric tailoring of the individual magnetic constituents. We show that an increased radius of curvature, in general, leads to the least losses in metamaterials. Particularly at higher THz frequencies, bulky structures outperform the planar structures.
URL<Go to ISI>://000270383300050
DOI10.1103/Physrevb.80.125129