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Viability of focusing effect by left-handed stacked subwavelength hole arrays

Navarro-Cia, M; Beruete, M; Sorolla, M; Campillo, I; (2010) Viability of focusing effect by left-handed stacked subwavelength hole arrays. Physica B: Condensed Matter , 405 (14) 2950 - 2954. 10.1016/j.physb.2010.01.011.

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Abstract

In this work we present advances in the design of lenses based on left-handed extraordinary transmission metamaterials which provide high transmission and focusing despite the subwavelength size of their constituent apertures. Due to the effective negative index of refraction of the close-stack of subwavelength hole arrays, concave profiles are required for focusing instead of the convex geometries of dielectric lenses. An analysis of the foci produced by plano- and bi-concave lens is carried out.. © 2010 Elsevier B.V. All rights reserved.

Type:Article
Title:Viability of focusing effect by left-handed stacked subwavelength hole arrays
DOI:10.1016/j.physb.2010.01.011
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering

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