Nanowire metamaterials with extreme optical anisotropy

Abstract

We study perspectives of nanowire metamaterials for negative-refraction waveguides, high-performance polarizers, and polarization-sensitive biosensors. We demonstrate that the behavior of these composites is strongly influenced by the concentration, distribution, and geometry of the nanowires, derive an analytical description of electromagnetism in anisotropic nanowire-based metamaterials, and explore the limitations of our approach via three-dimensional numerical simulations. Finally, we illustrate the developed approach on the examples of nanowire-based high energy-density waveguides and non-magnetic negative index imaging systems with far-field resolution of one-sixth of vacuum wavelength.

Updated version; accepted to Appl.Phys.Lett

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• Non-magnetic nano-composites for optical and infrared negative refraction index media
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• Electrodynamics of metallic photonic crystals and problem of left-handed materials
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