Dissipationless Flow and Sharp Threshold of a Polariton Condensate with Long Lifetime

Nelsen, Bryan; Liu, Gangqiang; Steger, Mark; Snoke, D. W.; Balili, Ryan; West, K. W.; Pfeiffer, L. N.

doi:10.1103/physrevx.3.041015

Cited by 123 publications

(164 citation statements)

References 39 publications

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“…This is comparable to reports of tens of picoseconds in similar optimized systems 4,21 and up to 100 s of picoseconds in ultra-high-Q microcavities. 22 Fig . 4(g) shows a pseudo-color image of the emission in the strongly relaxed sample under similar conditions in which the condensate is strongly fragmented, forming in a regular lattice pattern in sympathy with the crosshatch disorder.…”

mentioning

confidence: 99%

Design and characterization of high optical quality InGaAs/GaAs/AlGaAs-based polariton microcavities

Tinkler

Walker

Clarke

et al. 2015

Applied Physics Letters

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The presence of dislocations arising from strain relaxation strongly affects polaritons through their photonic component and ultimately limits experiments involving polariton propagation. In this work, we investigate the range of growth parameters to achieve high optical quality GaAs/AlxGa1−xAs-based microcavities containing strained InxGa1−xAs quantum wells and using differential interference contrast (Nomarski) microscopy deduce a design rule for homogeneous versus disordered structures. We illustrate the effect of disorder by contrasting observations of polariton condensates in relaxed and unrelaxed microcavities. In our optimized device, we generate a polariton condensate and deduce a lifetime for the interacting polariton fluid of 39 ± 2 ps.

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mentioning

confidence: 99%

Design and characterization of high optical quality InGaAs/GaAs/AlGaAs-based polariton microcavities

Tinkler

Walker

Clarke

et al. 2015

Applied Physics Letters

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“…We choose two parameters sets corresponding to (i) the currently available SWG cavities and (ii) the best available high quality cavities (conventional top and bottom DBR, not SWG). Current SWG based cavities have a polariton lifetime in the region of 1/γ ∼ 6 ps, while the best available conventional polariton cavities are in the region of 1/γ ∼ 100 ps [37,49]. However the lifetime of polaritons in SWG cavities can be improved if the grating design and fabrication are further refined, improving the lateral confinement.…”

Section: B Master Equationmentioning

confidence: 99%

Steady-state generation of negative-Wigner-function light using feedback

Joana¹,

Loock²,

Deng³

et al. 2016

Phys. Rev. A

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We propose a method of producing steady-state coherent light with negative Wigner functions in nonlinear media combined with feedback control. While the nonlinearities are essential to produce the Wigner negativities, this alone is insufficient to stabilize steady-state light with negativities. Using feedback control to control the phase in the cavity we find that this produces significant total negativities for reasonable experimental parameters. The negative Wigner function is produced continuously and does not appear to be restricted to low amplitude light. The technique is applicable to systems such as exciton-polaritons, where strong natural nonlinearities are present.

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“…Here, we introduced the dispersion of polaritons, characterized by an effective mass m L . We consider a high Q-factor microcavity, approaching the equilibrium limit [60,61], and consequently we neglected the nonequilibrium terms. We note that this might not be the case for low-Q samples, and leave the study of full driven-dissipative dynamics for future investigation.…”

Section: B Spatial Dynamicsmentioning

confidence: 99%

Interactive optomechanical coupling with nonlinear polaritonic systems

et al. 2017

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We study a system of interacting matter quasiparticles strongly coupled to photons inside an optomechanical cavity. The resulting normal modes of the system are represented by hybrid polaritonic quasiparticles, which acquire effective nonlinearity. Its strength is influenced by the presence of a mechanical mode and depends on the resonance frequency of the cavity. This leads to an interactive type of optomechanical coupling, which is distinct from previously studied dispersive and dissipative couplings in optomechanical systems. The emergent interactive coupling is shown to generate effective optical nonlinearity terms of high order, which are quartic in the polariton number. We consider particular systems of exciton polaritons and dipolaritons, and show that the induced effective optical nonlinearity due to interactive coupling can exceed in magnitude the strength of Kerr nonlinear terms, such as those arising from polariton-polariton interactions. As applications, we show that the higher-order terms give rise to localized bright flattop solitons, which may form spontaneously in polariton condensates.

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Dissipationless Flow and Sharp Threshold of a Polariton Condensate with Long Lifetime

Cited by 123 publications

References 39 publications

Design and characterization of high optical quality InGaAs/GaAs/AlGaAs-based polariton microcavities

Design and characterization of high optical quality InGaAs/GaAs/AlGaAs-based polariton microcavities

Steady-state generation of negative-Wigner-function light using feedback

Interactive optomechanical coupling with nonlinear polaritonic systems

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