Low-Loss Multilayered Metamaterial Exhibiting a Negative Index of Refraction at Visible Wavelengths

Carlos Garcia-Meca, Juan Hurtado, Javier Marti, Alejandro Martinez, Wayne Dickson, Anatoly V. Zayats

Research output: Contribution to journalArticlepeer-review

168 Citations (Scopus)

Abstract

We experimentally demonstrate a low-loss multilayered metamaterial exhibiting a double-negative refractive index in the visible spectral range. To this end, we exploit a second-order magnetic resonance of the so-called fishnet structure. The low-loss nature of the employed magnetic resonance, together with the effect of the interacting adjacent layers, results in a figure of merit as high as 3.34. A wide spectral range of negative index is achieved, covering the wavelength region between 620 and 806 nm with only two different designs.
Original languageEnglish
Article number067402
Number of pages4
JournalPhysical Review Letters
Volume106
Issue number6
DOIs
Publication statusPublished - 11 Feb 2011

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