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Updated: Jul 31, 2026

Fabricating Metamaterials Using the Fiber Drawing Method
Published on: October 18, 2012
Experimental demonstration of subwavelength focusing of electromagnetic waves by labyrinth-based two-dimensional
Irfan Bulu1, Humeyra Caglayan, Ekmel Ozbay
1Department of Physics and the Nanotechnology Research Center, Bilkent University, Bilkent, 06800 Ankara, Turkey. irfan@fen.bilkent.edu.tr
Abstract:
We studied focusing in a two-dimensional metamaterial that was based on a labyrinth structure. We theoretically showed that the labyrinth-based metamaterial exhibits negative indices of refraction between 6 and 6.4 GHz. We experimentally studied the focusing effect by measuring electric field intensities on the output side of the metamaterial when the source was placed in front of the input side of the metamaterial. Our experimental results showed that it is in fact possible to focus the source field with half-widths as small as wavelength/4 by using the labyrinth-based metamaterial.

