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arXiv · 1107.4489

A copper negative index metamaterial in the visible / near-infrared

James Parsons·Albert Polman
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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.

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James Parsons, Albert Polman. 2011-08-22. A copper negative index metamaterial in the visible / near-infrared. https://doi.org/10.1063/1.3654149

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