Demonstration of Near-Infrared Negative-Index Materials

Details Demonstration of Near-Infrared Negative-Index Materials Demonstration of Near-Infrared Negative-Index Materials

2005-04-28

arxiv.org/abs/physics/0504208v1

Physics

Optics

16 pages, 5 figures, submitted to Physical Review Letters on March 07, 2005

Scientific paper

10.1103/PhysRevLett.95.137404

Metal-based negative refractive index materials have been extensively studied in the microwave region. However, negative-index metamaterials have not been realized at near-IR or visible fre-quencies due to difficulties of fabrication and to the generally poorer optical properties of metals at these wavelengths. In this paper, we report the first fabrication and experimental verification of a transversely structured metal-dielectric-metal multilayer exhibiting a negative refractive in-dex around 2 mm. Both the amplitude and the phase of the transmission and reflection were measured experimentally, and are in good agreement with a rigorous coupled wave analysis.

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