Self-assembled hexagonal double fishnets as negative index materials
Optics
2012-01-05 v1
Abstract
We show experimentally the successful use of colloidal lithography for the fabrication of negative index metamaterials in the near-infrared wavelength range. In particular, we investigated a specific implementation of the widely studied double fishnet metamaterials, consisting of a gold-silica-gold layer stack perforated by a hexagonal array of round holes. Tuning of the hole diameter allows us to tailor these self-assembled metamaterials both as single- ({\epsilon} < 0) and double ({\epsilon} < 0 and {\mu} < 0) negative metamaterials.
Cite
@article{arxiv.1010.5138,
title = {Self-assembled hexagonal double fishnets as negative index materials},
author = {Kristof Lodewijks and Niels Verellen and Willem Van Roy and Gustaaf Borghs and Pol Van Dorpe},
journal= {arXiv preprint arXiv:1010.5138},
year = {2012}
}