A negative permeability material at red light

Abstract

Experimental demonstration of a negative permeability due to near-field coupling of periodic thin silver strips is presented. Two samples with different strip thicknesses are fabricated; optical measurements of the samples confirm our initial design projections by showing the real part of permeability to be about -1 for the sample with thinner strips and -0.8 for the sample with thicker strips at wavelengths of 770 nm and 720 nm.

6 pages, 3 figures

References in corpus (4)

• Magnetic metamaterials at telecommunication and visible frequencies
• Negative-index metamaterial at 780 nm wavelength
• Negative index metamaterial combining magnetic resonators with metal films
• Comment on "Negative Refractive Index in Artificial Metamaterials" [A. N. Grigorenko, Opt. Lett., 31, 2483 (2006)]

Cited by in corpus (3)

• Dual-Band Negative Index Metamaterial: Double-Negative at 813 nm and Single-Negative at 772 nm
• Optical Magnetism: from Red to Blue
• Reply to comment by A.V. Kildishev et al. [physics/0609234] and V. M. Shalaev et al. [Opt. Lett. 30, 3345 (2005)]