Superconducting complementary metasurfaces for THz ultrastrong light-matter coupling

Abstract

A superconducting metasurface operating in the THz range and based on the complementary metamaterial approach is discussed. Experimental measurements as a function of temperature and magnetic field display a modulation of the metasurface with a change in transmission amplitude and frequency of the resonant features. Such a metasurface is successively used as a resonator for a cavity quantum electrodynamic experiment displaying ultrastrong coupling to the cyclotron transition of a 2DEG. A finite element modeling is developed and its results are in good agreement with the experimental data. In this system a normalized coupling ratio of $\frac{\Omega }{{\omega }_c}=0.27$ is measured and a clear modulation of the polaritonic states as a function of the temperature is observed.

References in corpus (7)

• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
• Superconducting Metamaterials
• Intersubband Polaritons in the Electrical Dipole Gauge
• Nonclassical Radiation from Thermal Cavities in the Ultrastrong Coupling Regime
• Charge induced coherence between intersubband plasmons in a quantum structure
• Terahertz Time-Domain Magnetospectroscopy of a High-Mobility Two-Dimensional Electron Gas

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• Landau polaritons in highly non-parabolic 2D gases in the ultra-strong coupling regime
• Topologically non-trivial Floquet band structure in a system undergoing photonic transitions in the ultra-strong coupling regime
• Collective Radiance Effects in the Ultrastrong Coupling Regime
• Cavity Quantum Electrodynamics with Hyperbolic van der Waals Materials
• Berry Phase and Topology in Ultrastrongly Coupled Quantum Light-Matter Systems
• Cavity Moiré Materials: Controlling Magnetic Frustration with Quantum Light-Matter Interaction
• Multielectron Ground State Electroluminescence
• THz Discrimination of materials: demonstration of a bioinspired apparatus based on metasurfaces selective filters
• Cavity-enhanced Kondo effect
• Ultrastrong light-matter coupling in near-field coupled split-ring resonators revealed by photocurrent spectroscopy