Nonlocal Optics of Plasmonic Nanowire Metamaterials

Abstract

We present an analytical description of the nonlocal optical response of plasmonic nanowire metamaterials that enable negative refraction, subwavelength light manipulation, and emission lifetime engineering. We show that dispersion of optical waves propagating in nanowire media results from coupling of transverse and longitudinal electromagnetic modes supported by the composite and derive the nonlocal effective medium approximation for this dispersion. We derive the profiles of electric field across the unit cell, and use these expressions to solve the long-standing problem of additional boundary conditions in calculations of transmission and reflection of waves by nonlocal nanowire media. We verify our analytical results with numerical solutions of Maxwell's equations and discuss generalization of the developed formalism to other uniaxial metamaterials.

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• Optical Hyperlens: Far-field imaging beyond the diffraction limit
• Nanowire metamaterials with extreme optical anisotropy
• Nonlocal Homogenization Model for a Periodic Array of Epsilon-Negative Rods
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Cited by in corpus (9)

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• Spontaneous Emission in Nonlocal Materials
• Circular Dichroism Enhancement in Plasmonic Nanorod Metamaterials
• Purcell effect in Hyperbolic Metamaterial Resonators
• Optical Characterization of Epsilon-Near-Zero, Epsilon-Near-Pole and Hyperbolic Response in Nanowire Metamaterials
• Scattering Suppression from Arbitrary Objects in Spatially-Dispersive Layered Metamaterials
• Roadmap on Nonlocality in Photonic Materials and Metamaterials
• Beyond local effective material properties for metamaterials
• Bistability in mushroom-type metamaterials