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Proceedings Paper

Labyrinth-based left-handed metamaterials and subwavelength focusing of electromagnetic waves
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Paper Abstract

We propose and demonstrate a new labyrinth based metamaterial structure that solves two major problems related to the split-ring resonator based structures. One of the problems related to the split-ring resonator structure is the bianisotropy, and the other problem is the electric coupling to the magnetic resonance of the split-ring resonator structure. These two problems introduce difficulties in obtaining isotropic left-handed metamaterial mediums. The new structure that we propose here solves both of these problems. We further show that in addition to the magnetic resonance, when combined with a suitable wire medium, the structure that we propose exhibits left-handed transmission band. A two-dimensional metamaterial based on the labyrinth structure is used to study imaging of a point source. Our experimental results show that it is possible to image the point source with half widths as small as λ/4 by using the labyrinth based metamaterial.

Paper Details

Date Published: 1 March 2006
PDF: 11 pages
Proc. SPIE 6128, Photonic Crystal Materials and Devices IV, 612813 (1 March 2006); doi: 10.1117/12.649548
Show Author Affiliations
Ekmel Ozbay, Bilkent Univ. (Turkey)
Irfan Bulu, Bilkent Univ. (Turkey)
Humeyra Caglayan, Bilkent Univ. (Turkey)

Published in SPIE Proceedings Vol. 6128:
Photonic Crystal Materials and Devices IV
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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