Gyromagnetically Induced Transparency of Meta-Surfaces

Abstract

We demonstrate that the violation of the time-reversal (TR) symmetry in the presence of a gyromagnetic substrate can produce an analog of electromagnetically induced transparency in metallic meta-molecules. The simplest implementation of such gyromagnetically induced transparency (GIT) in a meta-surface comprised of an array of resonant antenna pairs placed on a gyromagnetic substrate and illuminated by a normally incident electromagnetic wave is analyzed. TR symmetry breaking introduced by the magnetic field makes meta-molecules bi-anisotropic and causes spectrally-sharp Fano interference between the otherwise uncoupled electric and magnetic dipolar resonances of the meta-molecules. The applied magnetic field results in a sharp transmission peak through the otherwise reflective meta-surface. We show that, for oblique wave incidence, one-way GIT can be achieved by the combination of spatial dispersion and TR symmetry breaking. These theoretically predicted phenomena pave the way to non-reciprocal switches and isolators that can be dynamically controlled by electric currents.

arXiv comment9 pages, 5 figures

References in corpus (13)

• Fano resonances in nanoscale structures
• Possible Realization of Directional Optical Waveguides in Photonic Crystals with Broken Time-Reversal Symmetry
• Reflection-Free One-Way Edge Modes in a Gyromagnetic Photonic Crystal
• Sharp dark-mode resonances in planar metamaterials with broken structural symmetry
• A metamaterial analog of electromagnetically induced transparency
• Nonlinear properties of left-handed metamaterials
• First-Principle Homogenization Theory for Periodic Metamaterials
• Broadband Slow Light Metamaterial Based on a Double-Continuum Fano Resonance
• Optical Activity of Planar Achiral Metamaterials
• Tunable split-ring resonators for nonlinear negative-index metamaterials
• Analysis of Nonlinear Electromagnetic Metamaterials
• Observation of backscattering-immune chiral electromagnetic modes without time reversal breaking
• Optical properties of Fano-resonant metallic metasurfaces on a substrate

Cited by in corpus (11)

• Tutorial on Electromagnetic Nonreciprocity and Its Origins
• Tunable nonlinear graphene metasurfaces
• Faraday-Rotation in Iron Garnet Films Beyond Elemental Substitutions
• Giant Non-reciprocity Near Exceptional Point Degeneracies
• Storage and retrieval of electromagnetic waves using electromagnetically induced transparency in a nonlinear metamaterial
• A metasurface with bidirectional hyperbolic surface modes and positionsensing applications
• Implementation of electromagnetically induced transparency in a metamaterial controlled with auxiliary waves
• Strong magneto-optical response enabled by quantum two level systems
• Fano Resonance in a Subwavelength Mie-based Metamolecule with Split Ring Resonator
• Nonreciprocity and One-Way Topological Transitions in Hyperbolic Metamaterials
• Collective Resonances in Nanoparticle Oligomers