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Optimal arrangement of meta-atoms composing metamaterials

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Optimal arrangement of meta-atoms composing metamaterials

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Title: Optimal arrangement of meta-atoms composing metamaterials
Author: Chuang, Yi-Chen; Dudley, Richard; Fiddy, Michael A.
Copyright year: 2012
Abstract: In order to better understand how to improve the performance of a superlens, structural and geometrical arrangements of meta-atoms are investigated. Each meta-atom (i.e. the unit element composing a metamaterial) in our study is an asymmetric 3D “S”-shaped resonator. This structure radiates an enhanced scattered field at several possible resonant frequencies, some of which are out of phase with the incident wave. We retrieve the effective parameters of different metamaterials and discuss the role of meta-atom symmetries and dimensions in affecting the effective refractive index of a metamaterial slab. Relative locations and orientations of individual meta-atoms are investigated to provide desired properties with low loss despite the inevitable finite size of each meta-atom. The results presented provide insights for designing superlenses, resonant antennas, and other potential applications.
Subject: DRNTU::Engineering::Electrical and electronic engineering
Type: Conference Paper
Conference name: Photonic and Phononic Properties of Engineered Nanostructures (2nd : 2012 : San Francisco, US)
School: School of Electrical and Electronic Engineering
Related Organization: Department of Physics and Optical Science, Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte, USA
Rights: © 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - Photonic and Phononic Properties of Engineered Nanostructures II and is made available as an electronic reprint (preprint) with permission of SPIE. The paper can be found at DOI: [http://dx.doi.org/10.1117/12.906331]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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