Journal
OPTICS EXPRESS
Volume 14, Issue 19, Pages 8685-8693Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.008685
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We demonstrate experimentally the double-negative (epsilon < 0, mu < 0) transmission band of a one-dimensional metamaterial structure under normal-to-plane propagation in the microwave regime. The structure consists of stacked bilayers of metal cutwire and wire pairs, which are separated by a thin dielectric layer. The existence of the negative index of refraction is inferred from the transmission and phase spectra obtained by using multilayer metamaterial samples. Another metamaterial structure incorporating non-magnetic (electrically shorted) cutwire pairs does not exhibit the corresponding transmission band, which supports the true left-handed behavior of the metamaterial. (c) 2006 Optical Society of America
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