Negative refraction in time-varying, strongly-coupled plasmonic antenna-ENZ systems
arXiv:1908.03908 · doi:10.1103/PhysRevLett.124.043902
Abstract
Time-varying metasurfaces are emerging as a powerful instrument for the dynamical control of the electromagnetic properties of a propagating wave. Here we demonstrate an efficient time-varying metasurface based on plasmonic nano-antennas strongly coupled to an epsilon-near-zero (ENZ) deeply sub-wavelength film. The plasmonic resonance of the metal resonators strongly interacts with the optical ENZ modes, providing a Rabi level spitting of ~30%. Optical pumping at frequency ω induces a nonlinear polarisation oscillating at 2ω responsible for an efficient generation of a phase conjugate and a negative refracted beam with a conversion efficiency that is more than four orders of magnitude greater compared to the bare ENZ film. The introduction of a strongly coupled plasmonic system therefore provides a simple and effective route towards the implementation of ENZ physics at the nanoscale
References in corpus (14)
- Strong coupling between surface plasmon polaritons and emitters
- Observation of Superfluidity of Polaritons in Semiconductor Microcavities
- Stimulating uncertainty: Amplifying the quantum vacuum with superconducting circuits
- Enhanced nonlinear refractive index in epsilon-near-zero materials
- Space-time gradient metasurfaces
- Revisiting time reversal and holography with spacetime transformations
- Quantum vacuum radiation spectra from a semiconductor microcavity with a time-modulated vacuum Rabi frequency
- Enhanced third harmonic generation from the epsilon-near-zero modes of ultrathin films
- Optical time reversal from time-dependent Epsilon-Near-Zero media
- Controlling hybrid nonlinearities in transparent conducting oxides via two-colour excitation
- Strong Coupling of Epsilon-Near-Zero Phonon Polaritons in Polar Dielectric Heterostructures
- Polariton excitation in epsilon-near-zero slabs: transient trapping of slow light
- Spontaneous photon production in time-dependent epsilon-near-zero materials
- Experimental quantum cosmology in time-dependent optical media
Cited by in corpus (20)
- Photonics of Time-Varying Media
- Observation of Temporal Reflections and Broadband Frequency Translations at Photonic Time-Interfaces
- Double-slit time diffraction at optical frequencies
- Minireview on Disordered Optical Metasurfaces
- Light Emission by Free Electrons in Photonic Time-Crystals
- Wood Anomalies and Surface-Wave Excitation with a Time-Grating
- Post-2000 Nonlinear Optical Materials and Measurements: Data Tables and Best Practices
- Low-loss Zero-Index Materials
- Superluminal k-gap solitons in nonlinear photonic time-crystals
- New horizons in near-zero refractive index photonics and hyperbolic metamaterials
- Spatiotemporal refraction of light in an epsilon-near-zero ITO layer
- Electrodynamics of Conductive Oxides: Intensity-dependent anisotropy, reconstruction of the effective dielectric constant, and harmonic generation
- Dynamic coherent perfect absorption in nonlinear metasurfaces
- Photon localisation and Bloch symmetry breaking in luminal gratings
- Dispersion engineering of infrared epsilon-near-zero modes by strong coupling to optical cavities
- Doping-Dependent Optical Response of a Hybrid Transparent Conductive Oxide/Plasmonic Medium
- Hybrid Epsilon-Near-Zero Modes of Photonic Gap Antennas
- Programming of refractive functions
- Fast and slow nonlinearities in ENZ materials
- Time-Reversed Water Waves Generated from an Instantaneous Time Mirror