Mid-Infrared intersubband polaritons in dispersive metal-insulator-metal resonators

Abstract

We demonstrate room-temperature strong-coupling between a mid-infrared ($\lambda$=9.9 $\mu$m) intersubband transition and the fundamental cavity mode of a metal-insulator-metal resonator. Patterning of the resonator surface enables surface-coupling of the radiation and introduces an energy dispersion which can be probed with angle-resolved reflectivity. In particular, the polaritonic dispersion presents an accessible energy minimum at k=0 where - potentially - polaritons can accumulate. We also show that it is possible to maximize the coupling of photons into the polaritonic states and - simultaneously - to engineer the position of the minimum Rabi splitting at a desired value of the in-plane wavevector. This can be precisely accomplished via a simple post-processing technique. The results are confirmed using the temporal coupled mode theory formalism and their significance in the context of the concept of strong critical coupling is highlighted.

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• Quantum fluids of light
• Giant Optical Non-linearity induced by a Single Two-Level System interacting with a Cavity in the Purcell Regime
• Stimulated scattering and lasing of intersubband cavity polaritons
• Terahertz lasing from intersubband polariton-polariton scattering in asymmetric quantum wells
• Quantum model of microcavity intersubband electroluminescent devices
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• Mid-Infrared intersubband polaritons in dispersive metal-insulator-metal resonators
• Optical phonon scattering of cavity polaritons in an electroluminescent device

Cited by in corpus (9)

• Mid-Infrared intersubband polaritons in dispersive metal-insulator-metal resonators
• Intersubband polariton-polariton scattering in a dispersive microcavity
• Immunity of intersubband polaritons to inhomogeneous broadening
• Resonant intersubband polariton-LO phonon scattering in an optically pumped polaritonic device
• THz ultra-strong light-matter coupling up to 200K with continuously-graded parabolic quantum wells
• Saturation and bistability of defect-mode intersubband polaritons
• A generalized Gross-Pitaevskii model for intersubband polariton lasing
• Multiple vibro-polaritons formation from a thin polyethylene film embedded in a resonant mid-infrared cavity
• Direct polariton-to-electron tunneling in quantum cascade detectors operating in the strong light-matter coupling regime