Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3654149
Keywords
copper; infrared spectra; magnetic permeability; metamaterials; numerical analysis; permittivity; plasmonics; refractive index; visible spectra
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Funding
- NWO
- European Research Council
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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. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3654149]
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