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.

4 figures Inclusion of additional simulations referee request addition and correction of references, journal formatting style

References in corpus (3)

• Negative-index metamaterial at 780 nm wavelength
• Dual-Band Negative Index Metamaterial: Double-Negative at 813 nm and Single-Negative at 772 nm
• Experimental demonstration of negative index of refraction

Cited by in corpus (2)

• Dual-band, double-negative, polarization-independent metamaterial for the visible spectrum
• An Expedient Approach to FDTD-based Modeling of Finite Periodic Structures