A copper negative index metamaterial in the visible / near-infrared
Abstract
We propose a design for a plasmonic copper metamaterial with a negative index of refraction at visible/near-infrared wavelengths. Using numerical simulations, we demonstrate negative refraction by a copper metamaterial prism, and perform a parameter extraction technique to verify the sign of the effective, electric permittivity and magnetic permeability. Our proposed design has a figure of merit comparable to similar silver-based metamaterials operating in the visible/near-infrared range. These findings have implications for the design of low cost plasmonic devices and negative-index metamaterials in the visible / near-infrared.
Keywords
Cite
@article{arxiv.1107.4489,
title = {A copper negative index metamaterial in the visible / near-infrared},
author = {James Parsons and Albert Polman},
journal= {arXiv preprint arXiv:1107.4489},
year = {2011}
}
Comments
4 figures Inclusion of additional simulations referee request addition and correction of references, journal formatting style