Microwave and THz sensing using slab-pair-based metamaterials

TitleMicrowave and THz sensing using slab-pair-based metamaterials
Publication TypeJournal Article
Year of Publication2012
AuthorsKenanakis G, Shen NH, Mavidis C, Katsarakis N, Kafesaki M, Soukoulis CM, Economou EN
Journal TitlePhysica B-Condensed Matter
Volume407
Pages4070-4074
Date Published10
Type of ArticleArticle; Proceedings Paper
ISBN Number0921-4526
Accession NumberWOS:000308907300014
Keywordsmetamaterials, Microwaves, sensors, Slab-pair design
Abstract

In this work the sensing capability of an artificial magnetic metamaterial based on pairs of metal slabs is demonstrated, both theoretically and experimentally, in the microwave regime. The demonstration is based on transmission measurements and simulations monitoring the shift of the magnetic resonance frequency as one changes a thin dielectric layer placed between the slabs of the pairs. Strong dependence of the magnetic resonance frequency on both the permittivity and the thickness of the dielectric layer under detection was observed. The sensitivity to the dielectrics' permittivity (epsilon) is larger for dielectrics of low epsilon values, which makes the approach suitable for sensing organic materials also in the THz regime. The capability of our approach for THz sensing is also demonstrated through simulations. (c) 2012 Elsevier B.V. All rights reserved.

URL<Go to ISI>://WOS:000308907300014
DOI10.1016/j.physb.2012.04.050
Alternate JournalPhysica B