Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices

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Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices.

Near-infrared metamaterials that possess a reconfigurable index of refraction from negative through zero to positive values are presented. Reconfigurability is achieved by cladding thin layers of liquid crystal both as a superstrate and a substrate on an established negative-index metamaterial, and adjusting the permittivity of the liquid crystal. Numerical results show that the index of refrac...

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ژورنال

عنوان ژورنال: Optics Express

سال: 2007

ISSN: 1094-4087

DOI: 10.1364/oe.15.003342