248 citations · 1.7k across the 41 of their papers we have counts for
44 papers
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…
Precision Hamiltonian Encoding in Full-Aperture Spatial Photonic Ising Machines
P. S. Karavelas, D. Karanikolopoulos, L. Mouchliadis +11
Spatial photonic Ising machines (SPIMs) offer compact, room-temperature hardware with inherently parallel, energy-efficient, single-shot optical evaluation of the Ising Hamiltonian…
Mapping the strong-to-weak coupling crossover in polymer-film microcavity lasers
Denis A. Sannikov, Nailya M. Urazova, Maksim D. Kolker +10
Organic semiconductors are particularly attractive for polaritonics due to their large exciton binding energies and oscillator strengths. Among them, the ladder-type conjugated pol…
Fully Programmable Spatial Photonic Ising Machine by Focal Plane Division
Daniele Veraldi, Davide Pierangeli, Silvia Gentilini +10
Ising machines are an emerging class of hardware that promises ultrafast and energy-efficient solutions to NP-hard combinatorial optimization problems. Spatial photonic Ising machi…
Optically and remotely controlling localization of exciton polariton condensates in a potential lattice
Qiang Ai, Jan Wingenbach, Xinmiao Yang +6
Exciton polaritons are inherently tunable systems with adjustable potential landscape. In this work we show that exciton polariton condensates can be selectively localized in a fix…
Qubit Analog with Polariton Superfluid in an Annular Trap
J. Barrat, A. F. Tzortzakakis, M. Niu +4
We report on the experimental realization and characterization of a qubit analog with semiconductor exciton-polaritons. In our system, a condensate of exciton-polaritons is confine…
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…
Switching off microcavity polariton condensate near the exceptional point
Yao Li, Xuekai Ma, Zaharias Hatzopoulos +3
Gain and loss modulation are ubiquitous in nature. An exceptional point arises when both the eigenvectors and eigenvalues coalesce, which in a physical system can be achieved by en…
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…
Synchronization crossover of polariton condensates in weakly disordered lattices
H. Ohadi, Y. del Valle-Inclan Redondo, A. J. Ramsay +5
We demonstrate that the synchronization of a lattice of solid-state condensates when inter-site tunnelling is switched on, depends strongly on the weak local disorder. This finding…
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…
Tunable magnetic alignment between trapped exciton-polariton condensates
H. Ohadi, Y. del Valle-Inclan Redondo, A. Dreismann +6
Tunable spin correlations are found to arise between two neighboring trapped exciton-polariton condensates which spin-polarize spontaneously. We observe a crossover from an antifer…
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…