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Total transmission and total reflection by zero index metamaterials with defects

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Total transmission and total reflection by zero index metamaterials with defects

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Title: Total transmission and total reflection by zero index metamaterials with defects
Author: Nguyen, Viet Cuong; Chen, Lang; Halterman, Klaus
Copyright year: 2010
Abstract: In this Letter, we theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave can be achieved. The proposed defect structure can offer advances in shielding or cloaking technologies without restricting the object’s viewpoint. Active control of the observed exotic transmission and reflection signatures can occur by incorporating tunable refractive index materials such as liquid crystals and BaSr TiO3.
Subject: DRNTU::Science::Physics::Optics and lightDRNTU::Engineering::Materials::Photonics and optoelectronics materials
Type: Journal Article
Series/ Journal Title: Physical review letters
School: School of Materials Science and Engineering
Rights: © 2010 American Physical Society. This is the author created version of a work that has been peer reviewed and accepted for publication by International Physical Review Letters, American Physical Society. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at DOI: http://dx.doi.org/10.1103/PhysRevLett.105.233908.
Version: Accepted version

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