Loss enhanced transmission and collimation in anisotropic epsilon-near-zero metamaterials

Abstract

We verify the extraordinary transmission enhancement and collimation induced by the material loss in anisotropic near-zero permittivity (ENZ) metamaterials, and reveal the physical mechanism of this exotic electromagnetic phenomenon via the iso-frequency contour (IFC) analysis. In addition, we demonstrate the possibility in realization of such loss enhanced transmission of Gaussian beam in realistic silver-germanium multilayered structures by applying full-wave numerical simulations.

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Cited by in corpus (6)

• Hyperbolic Metamaterials: From Dispersion Manipulation to Application
• Tunneling of Obliquely-Incident Waves through PT-Symmetric Epsilon-Near-Zero Bi-Layers
• $\mathcal{P}\mathcal{T}$-Symmetry-Induced Wave Confinement and Guiding in Epsilon-Near-Zero Metamaterials
• Giant optical nonlocality near the Dirac point in metal-dielectric multilayer metamaterials
• Diffraction-free optical beam propagation with near-zero phase variation in extremely anisotropic metamaterials
• Fast-response silicon photonic microheater induced by parity-time symmetry breaking