Strong Purcell effect in anisotropic $\epsilon$-near-zero metamaterials

Abstract

We theoretically demonstrate the strong Purcell effect in $\epsilon$-near-zero ultra-anisotropic uniaxial metamaterials with elliptic isofrequency surface. Contrary to the hyperbolic metamaterials, the effect does not rely on the diverging density of states and evanescent waves. As a result, both the radiative decay rate and the far-field emission power are enhanced. The effect can be realized in the periodic layered metal-dielectric nanostructures with complex unit cell containing two different metallic layers.

arXiv comment4 pages, 3 figures

References in corpus (11)

• Epsilon-Near-Zero (ENZ) Metamaterials and Electromagnetic Sources: Tailoring the Radiation Phase Pattern
• Quantum nanophotonics using hyperbolic metamaterials
• High temperature epsilon-near-zero and epsilon-near-pole metamaterial emitters for thermophotovoltaics
• Engineered Optical Nonlocality in Nanostructured Metamaterials
• Nanophotonic control of Forster Resonance Energy Transfer
• Spontaneous radiation of a finite-size dipole emitter in hyperbolic media
• Microscopic model of Purcell enhancement in hyperbolic metamaterials
• Realizing bending waveguides with anisotropic epsilon-near-zero metamaterials
• Enhanced Super-Radiance in Epsilon-Near-Zero Plasmonic Channels
• Tunneling of Obliquely-Incident Waves through PT-Symmetric Epsilon-Near-Zero Bi-Layers
• Graphene-Dielectric Composite Metamaterials: Evolution from Elliptic to Hyperbolic Wavevector Dispersion and The Transverse Epsilon-Near-Zero Condition

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• Switching Purcell effect with nonlinear epsilon-near-zero media
• All-optical modulation in wavelength-sized epsilon-near-zero media
• Granular permittivity representation in extremely near-field light-matter interactions processes
• Density of states effects on emission and scattering of photons in plasmas
• Different regimes of ultrashort pulse propagation in disordered layered media with resonant loss and gain
• All-optical transmission modulation due to inelastic interactions of ultrashort pulses in a disordered resonant medium
• Nonlinear Metasurfaces: A Paradigm Shift in Nonlinear Optics