248 citations · 1.7k across the 41 of their papers we have counts for
32 papers · 1 filter
Deterministic Vortex Generation from Coupled Trapped Polariton Condensate Triad
X. Qin, N. Pitanios, S. Dam +4
We present the deterministic generation and all-optical switching of ternary topologically distinct vortex states in a triad of trapped exciton-polariton condensates with direct st…
Stochastic circular persistent currents of exciton polaritons
J. Borat, Roman Cherbunin, Evgeny Sedov +8
We keep track of the orbital degree of freedom of an exciton polariton condensate, confined in an optical trap, and reveal the stochastic switching of persistent annular polariton…
Steady state oscillations of circular currents in concentric polariton condensates
Vladimir Lukoshkin, Evgeny Sedov, Vladimir Kalevich +3
Concentric ring exciton polariton condensates emerging under non-resonant laser pump in an annular trapping potential support persistent circular currents of polaritons. The trappi…
Double ring polariton condensates with polariton vortices
Evgeny Sedov, Vladimir Lukoshkin, Vladimir Kalevich +4
We study formation of superfluid currents of exciton polaritons in annular polariton condensates in a cylindrical micropillar cavity under the spatially localised nonresonant optic…
Ultralong temporal coherence in optically trapped exciton-polariton condensates
K. Orfanakis, A. F. Tzortzakakis, D. Petrosyan +2
We investigate an optically trapped exciton-polariton condensate and observe temporal coherence beyond 1~ns duration. Due to the reduction of the spatial overlap with the thermal r…
On the remote coherence of polariton condensates in 1D microcavities: a photoluminescence study
M. D. Martín, E. Rozas, C. Antón +2
In this manuscript we will gather clear experimental evidences of remote coherence between two polariton condensate droplets that have never overlapped in real space and discuss ho…
Spin noise signatures of the self-induced Larmor precession
I. I. Ryzhov, V. O. Kozlov, N. S. Kuznetsov +7
Bose-Einstein condensates of exciton-polaritons are known for their fascinating coherent and polarization properties. The spin state of the condensate is reflected in polarization…
Superfluid currents in half-moon polariton condensates
E. S. Sedov, V. A. Lukoshkin, V. K. Kalevich +3
We excite exciton-polariton condensates in half-moon shapes by the non-resonant optical excitation of GaAs-based cylindrical pillar microcavities. In this geometry, the π-jump of t…
Determination of polariton condensates' critical temperature
E. Rozas, M. D. Martín, C. Tejedor +4
We investigate the thermal robustness of traveling polariton condensates. We create remote condensates that have never been in contact, and study their interference in momentum spa…
Strain-assisted optomechanical coupling of polariton condensate spin to a micromechanical resonator
O. Be'er, H. Ohadi, Y. del Valle-Inclan Redondo +5
We report spin and intensity coupling of an exciton-polariton condensate to the mechanical vibrations of a circular membrane microcavity. We optically drive the microcavity resonat…
Temperature dependence of the coherence in polariton condensates
E. Rozas, M. D. Martín, C. Tejedor +4
We present a time-resolved experimental study of the temperature effect on the coherence of traveling polariton condensates. The simultaneous detection of their emission both in re…
Optical bistability under non-resonant excitation in spinor polariton condensates
L. Pickup, K. Kalinin, A. Askitopoulos +4
We realise bistability in the spinor of polariton condensates under non-resonant optical excitation and in the absence of biasing external fields. Numerical modelling of the system…
Persistent circular currents of exciton-polaritons in cylindrical pillar microcavities
V. A. Lukoshkin, V. K. Kalevich, M. M. Afanasiev +5
We have experimentally observed an eddy current of exciton polaritons arising in a cylindrical GaAs/AlGaAs pillar microcavity under the nonresonant optical pumping. The polariton c…
Spin order and phase transitions in chains of polariton condensates
H. Ohadi, A. J. Ramsay, H. Sigurdsson +8
We demonstrate that multiply-coupled spinor polariton condensates can be optically tuned through a sequence of spin-ordered phases by changing the coupling strength between nearest…
Inverse-phase Rabi oscillations in semiconductor microcavities
A. V. Trifonov, N. E. Kopteva, M. V. Durnev +7
We study experimentally the oscillations of a non stationary transient signal of a semiconductor microcavity with embedded InGaAs quantum wells. The oscillations occur as a result…
Spin noise of a polariton laser
I. I. Ryzhov, M. M. Glazov, A. V. Kavokin +3
We report on experimental study of the exciton-polariton emission (PE) polarization noise below and above the polariton lasing threshold under continuous wave nonresonant excitatio…
Dynamics of the Energy Relaxation in a Parabolic Quantum Well Laser
A. V. Trifonov, E. D. Cherotchenko, J. L. Carthy +6
We explore two parabolic quantum well (PQW) samples, with and without Bragg mirrors, in order to optimise the building blocks of a Bosonic Cascade Laser. The photoluminescence spec…
Spontaneous spin bifurcations and ferromagnetic phase transitions in a spinor exciton-polariton condensate
H. Ohadi, A. Dreismann, Y. G. Rubo +6
We observe a spontaneous parity breaking bifurcation to a ferromagnetic state in a spatially trapped exciton-polariton condensate. At a critical bifurcation density under nonresona…
Spin Selective Filtering of Polariton Condensate Flow
T. Gao, C. Antón, T. C. H. Liew +5
Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge wave…
Optical control of spin textures in quasi-one-dimensional polariton condensates
C. Antón, S. Morina, T. Gao +7
We investigate, through polarization-resolved spectroscopy, the spin transport by propagating polariton condensates in a quasi one-dimensional microcavity ridge along macroscopic d…
Ignition and formation dynamics of a polariton condensate on a semiconductor microcavity pillar
C. Antón, D. Solnyshkov, G. Tosi +6
We present an experimental study on the ignition and decay of a polariton optical parametric oscillator (OPO) in a semiconductor microcavity pillar. The combination of a continuous…
Relaxation Oscillations in the Formation of a Polariton Condensate
Milena De Giorgi, Dario Ballarini, Paolo Cazzato +7
We report observation of oscillations in the dynamics of a microcavity polariton condensate formed under pulsed non resonant excitation. While oscillations in a condensate have alw…
Operation speed of polariton condensate switches gated by excitons
C. Antón, T. C . H. Liew, D. Sarkar +5
We present a time-resolved photoluminescence (PL) study in real- and momentum-space of a polariton condensate switch in a quasi-1D semiconductor microcavity. The polariton flow acr…
Quantum coherence in momentum space of light-matter condensates
C. Antón, G. Tosi, M. D. Martín +6
We show that the use of momentum-space optical interferometry, which avoids any spatial overlap between two parts of a macroscopic quantum state, presents a unique way to study coh…