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Proceedings Paper

Tuning of terahertz metamaterials’ resonances via near field coupling
Author(s): Abul K. Azad; Dibakar Roy Chowdhury; Hou-Tong Chen; Antoinette J. Taylor
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Paper Abstract

Electromagnetic metamaterials (MMs) consisting of highly conducting sub-wavelength metallic resonators enable many unusual electromagnetic properties at designed frequencies which are not permissible with the naturally occurring materials. The electromagnetic properties of metamaterial are typically controlled by the clever design of the MM unit cell, often termed as meta-molecule, consisting of metallic split ring resonators (SRRs) or meta-atoms. The near field coupling between meta-atoms plays a vital role in tuning the natural resonances of individual SRR and, therefore, has the ability to modify the far-field radiation properties significantly. It is shown that near field coupling between the meta-atoms could lead to resonance tuning, mode splitting, and ultrafast switching in passive and active resonators. In this article, we present a brief review on tuning the metamaterial properties by active and passive manipulation of near field coupling between neighboring split ring resonators.

Paper Details

Date Published: 13 May 2015
PDF: 9 pages
Proc. SPIE 9483, Terahertz Physics, Devices, and Systems IX: Advanced Applications in Industry and Defense, 94830G (13 May 2015); doi: 10.1117/12.2182969
Show Author Affiliations
Abul K. Azad, Los Alamos National Lab. (United States)
Dibakar Roy Chowdhury, Los Alamos National Lab. (United States)
Mahindra Ecole Centrale (India)
Hou-Tong Chen, Los Alamos National Lab. (United States)
Antoinette J. Taylor, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 9483:
Terahertz Physics, Devices, and Systems IX: Advanced Applications in Industry and Defense
Mehdi F. Anwar; Thomas W. Crowe; Tariq Manzur, Editor(s)

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