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Dual-Band Negative Index Metamaterial: Double-Negative at 813 nm and Single-Negative at 772 nm

Uday K. Chettiar·Alexander V. Kildishev·Hsiao-Kuan Yuan·Wenshan Cai·Shumin Xiao·Vladimir P. Drachev·Vladimir M. Shalaev
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Abstract

This work is concerned with the experimental demonstration of a dual-band negative index metamaterial. The sample is double-negative (showing both a negative effective permeability and a negative effective permittivity) for wavelengths between 799 and 818 nm of linearly polarized light with a real part of refractive index of about -1.0 at 813 nm; the ratio -Re(n)/Im(n) is close to 1.3 at that wavelength. For an orthogonal polarization, the same sample also exhibits a negative refractive index in the visible (at 772 nm). The spectroscopic measurements of the material are in good agreement with the results obtained from a finite element electromagnetic solver for the actual geometry of the fabricated sample at both polarizations.

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Uday K. Chettiar, Alexander V. Kildishev, Hsiao-Kuan Yuan, Wenshan Cai, Shumin Xiao, Vladimir P. Drachev, Vladimir M. Shalaev. 2006-12-28. Dual-Band Negative Index Metamaterial: Double-Negative at 813 nm and Single-Negative at 772 nm. https://doi.org/10.1364/ol.32.001671

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