Self-assembled hexagonal double fishnets as negative index materials

Details Self-assembled hexagonal double fishnets as negative index materials Self-assembled hexagonal double fishnets as negative index materials

2010-10-18

arxiv.org/abs/1010.5138v1

Physics

Optics

Scientific paper

10.1063/1.3560444

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.

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