Exciton-polaritons gas as a nonequilibrium coolant
arXiv:1412.2630 · doi:10.1103/PhysRevLett.114.186403
Abstract
Using angle-resolved Raman spectroscopy, we show that a resonantly excited ground-state exciton-polariton fluid behaves like a nonequilibrium coolant for its host solid-state semiconductor microcavity. With this optical technique, we obtain a detailed measurement of the thermal fluxes generated by the pumped polaritons. We thus find a maximum cooling power for a cryostat temperature of K and below where optical cooling is usually suppressed, and we identify the participation of an ultrafast cooling mechanism. We also show that the nonequilibrium character of polaritons constitutes an unexpected resource: each scattering event can remove more heat from the solid than would be normally allowed using a thermal fluid with normal internal equilibration.
arXiv comment5 pages, 3 figures + supplemental material
References in corpus (4)
- Laser cooling of a nanomechanical oscillator into its quantum ground state
- Radiation-pressure cooling and optomechanical instability of a micro-mirror
- Self-cooling of a micro-mirror by radiation pressure
- Cavity polariton optomechanics: Polariton path to fully resonant dispersive coupling in optomechanical resonators
Cited by in corpus (19)
- Perspective: Quantum Thermodynamics
- Real-space collapse of a polariton condensate
- Heat meets light on the nanoscale
- Observation of quantum depletion in a nonequilibrium exciton-polariton condensate
- Valley polarized relaxation and upconversion luminescence from Tamm-Plasmon Trion-Polaritons with a MoSe2 monolayer
- Polariton condensates at room temperature
- Generation of Anti-Stokes Fluorescence in a Strongly Coupled Organic Semiconductor Microcavity
- Polariton lasing in high-quality Selenide-based micropillars in the strong coupling regime
- Angular dependence of giant Zeeman effect for semi-magnetic cavity polaritons
- Phonon cooling by an optomechanical heat pump
- Strong coupling and polariton lasing in Te based microcavities embedding (Cd,Zn)Te quantum wells
- Self-trapping of exciton-polariton condensates
- Bogoliubov excitations of a polariton condensate in dynamical equilibrium with an incoherent reservoir
- Coherent and incoherent aspects of polariton dynamics in semiconductor microcavities
- Heat-assisted self-localization of exciton polaritons
- Polariton lasing and energy-degenerate parametric scattering in non-resonantly driven coupled planar microcavities
- An Advanced Kinetic Theory For Morphing Continuum With Inner Structures
- Quantum thermodynamics of driven-dissipative condensates
- Determination of polariton condensates' critical temperature