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A negative permeability material at red light

Hsiao-Kuan Yuan·Uday K. Chettiar·Wenshan Cai·Alexander V. Kildishev·Vladimir P. Drachev·Alexandra Boltasseva·Vladimir M. Shalaev
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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.

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Hsiao-Kuan Yuan, Uday K. Chettiar, Wenshan Cai, Alexander V. Kildishev, Vladimir P. Drachev, Alexandra Boltasseva, Vladimir M. Shalaev. 2006-12-27. A negative permeability material at red light. https://doi.org/10.1364/oe.15.001076

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