Angle-Resonant Stimulated Polariton Amplifier

Savvidis, P. G.; Baumberg, Jeremy J.; Stevenson, R. M.; Skolnick, M. S.; Whittaker, D. M.; Roberts, J.S.

doi:10.1103/physrevlett.84.1547

Cited by 804 publications

(789 citation statements)

References 17 publications

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“…In the case of optical parametric amplification experiments, parametric scattering is stimulated by a weak additional probe field. OPA was first observed in an InGaAs/GaAs/AlGaAs microcavity [49], where a substantial signal gain of up to 70 was measured. Much experimental work has followed this first result [50,51,52,53,54,55,56,57,58,59].…”

Section: Polariton Parametric Scattering and Optical Parametric Amplimentioning

confidence: 99%

Vortices in Polariton OPO Superfluids

Marchetti

Szymańska

2012

Exciton Polaritons in Microcavities

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This chapter reviews the occurrence of quantised vortices in polariton fluids, primarily when polaritons are driven in the optical parametric oscillator (OPO) regime. We first review the OPO physics, together with both its analytical and numerical modelling, the latter being necessary for the description of finite size systems. Pattern formation is typical in systems driven away from equilibrium. Similarly, we find that uniform OPO solutions can be unstable to the spontaneous formation of quantised vortices. However, metastable vortices can only be injected externally into an otherwise stable symmetric state, and their persistence is due to the OPO superfluid properties. We discuss how the currents charactering an OPO play a crucial role in the occurrence and dynamics of both metastable and spontaneous vortices.

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Section: Polariton Parametric Scattering and Optical Parametric Amplimentioning

confidence: 99%

Vortices in Polariton OPO Superfluids

Marchetti

Szymańska

2012

Exciton Polaritons in Microcavities

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“…Coupled microcavities introduce additional degrees of freedom, both for materials and the cavity interactions, and have attracted increasing attention. Quantum well based coupled inorganic microcavites (MCs) have been well studied for theory and optical devices [4][5][6][7][8][9][10][11] . Cavity polariton-induced splitting of excitonic states and optical reflection asymmetry were reported by Armitage et al in quantum well based coupled inorganic MCs 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Coupling of exciton-polaritons inlow−Qcoupled microcavities beyond the rotating wave approximation

et al. 2015

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We have demonstrated coupling between a pair of ultrastrong light-matter coupled microcavities composed of neat glassy organic dye films between metallic (silver) mirrors at room temperature. Based upon our modified coupled oscillator model, we have observed that the degeneracy between the Rabi splittings associated with the symmetric and antisymmetric cavity modes is broken by the higher-order anti-resonant terms in the Hamiltonian associated with the breakdown of the rotating wave approximation in the ultrastrong coupling regime. These results are in quantitative agreement with both experiment and transfer matrix modeling. The component cavities are characterized by Q factors around 12 and display a large vacuum Rabi splitting around 1.12 eV between the upper and lower polariton branches, which is about 52% of the excited state energy, thus indicating ultrastrong coupling in each individual cavity. This large splitting is due to the large oscillator strength of the neat dye glass. We have also observed large polariton-induced incidence-side asymmetry in reflection spectra in a coupled cavity pair with one cavity having no exciton.

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“…The details of the W matrix elements have been described in detail in Ref. 1 . We present results for the following set of parameters: Well width of L z = 60Ȧ, Rabi splitting Ω = 4.8meV , n = 3.07, electron (hole) deformation potential D e(h) = 12(−7)eV , longitudinal sound velocity u = 4.81 × 10 3 m/s, mass density of the solid ρ = 5.3 × 10 3 kg/m 3 , radiative cavity(exciton) times τ c(x) = 50(200ps) The decay and generation rates as a function of k are taken from Ref.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…However, in semiconductor microcavities, under non-resonant excitation, acoustic phonons provide an effective channel for polaritons relaxation 14,15 . Moreover, recent experiments 1,16 have shown the importance of electron-polariton scattering at densities where the electron-electron interaction are insufficiently effective due to the their fast relaxation. This two relaxation mechanisms could be the most relevant to relax the huge population at the bottleneck.…”

Section: Introductionmentioning

confidence: 99%

Time resolved scattering relaxation mechanisms of microcavity polaritons

Chaves¹,

Rodríguez²

2005

Solid State Communications

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We study the polariton relaxation dynamics for different scattering mechanisms as: Phonon and electron scattering procesess. The relaxation polariton is obtained at very short times by solving the Boltzman equation. Instead of the well-known relaxation process by phonons, we show that the bottleneck effect relaxes to the ground state more efficiently at low pump power intensity when the electron relaxation process is included. In this way, we clearly demonstrate that different relaxation times exist, for which any of these two mechanism is more efficient to relax the polariton population to the ground state.

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Angle-Resonant Stimulated Polariton Amplifier

Cited by 804 publications

References 17 publications

Vortices in Polariton OPO Superfluids

Vortices in Polariton OPO Superfluids

Coupling of exciton-polaritons inlow−Qcoupled microcavities beyond the rotating wave approximation

Time resolved scattering relaxation mechanisms of microcavity polaritons

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