Resonant intersubband polariton-LO phonon scattering in an optically pumped polaritonic device
arXiv:1803.07510 · doi:10.1063/1.5029893
Abstract
We report experimental evidence of longitudinal optical (LO) phonon-intersubband polariton scattering processes under resonant injection of light. The scattering process is resonant with both the initial (upper polariton) and final (lower polariton) states and is induced by the interaction of confined electrons with longitudinal optical phonons. The system is optically pumped with a mid-IR laser tuned between 1094 cm-1 and 1134 cm-1 (lambda=9.14 um and lambda=8.82 um). The demonstration is provided for both GaAs/AlGaAs and InGaAs/AlInAs doped quantum well systems whose intersubband plasmon lies at lambda=10 um wavelength. In addition to elucidating the microscopic mechanism of the polariton-phonon scattering, that is found to differ substantially from the standard single particle electron-LO phonon scattering mechanism, this work constitutes the first step towards the hopefully forthcoming demonstration of an intersubband polariton laser.
arXiv comment10 pages, 5 figures
References in corpus (14)
- Quantum vacuum properties of the intersubband cavity polariton field
- Ultra-Strong Light-Matter Coupling Regime with Polariton Dots
- Input-output theory of cavities in the ultra-strong coupling regime: the case of a time-independent vacuum Rabi frequency
- Ultra strong coupling regime and plasmon-polaritons in parabolic semiconductor quantum wells
- Stimulated scattering and lasing of intersubband cavity polaritons
- The parametric oscillation threshold of semiconductor microcavities in the strong coupling regime
- Electrically injected cavity polaritons
- Terahertz lasing from intersubband polariton-polariton scattering in asymmetric quantum wells
- Room temperature terahertz polariton emitter
- Quantum theory of electron tunneling into intersubband cavity polariton states
- Intersubband electroluminescent devices operating in the strong coupling regime
- Mid-Infrared intersubband polaritons in dispersive metal-insulator-metal resonators
- Optical phonon scattering of cavity polaritons in an electroluminescent device
- Immunity of intersubband polaritons to inhomogeneous broadening
Cited by in corpus (9)
- Perspective: Phonon polaritons for infrared optoelectronics
- Ultra-fast amplitude modulation of mid-IR free-space beams at room-temperature
- Excitons bound by photon exchange
- Strong coupling of ionising transitions
- Intersubband polariton-polariton scattering in a dispersive microcavity
- Unified description of saturation and bistability of intersubband transitions in the weak and strong light-matter coupling regimes
- Low intensity saturation of an ISB transition by a mid-IR quantum cascade laser
- III-V on CaF2: a possible waveguiding platform for mid-IR photonic devices
- An effective density matrix approach for intersubband plasmons coupled to a cavity field: electrical extraction/injection of intersubband polaritons