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Helgi Sigurðsson - Rannsóknasérfræðingur

Helgi Sigurðsson

–

Verkfræði- og náttúruvísindasvið

Helgi SigurðssonHann/Hans

Rannsóknasérfræðingur

Rannsóknasérfræðingur

Aðsetur
VR-3 / V03-208
Tölvupóstur
helg [hjá] hi.is

Starfseining
Eðlisvísindastofnun, Eðlisfræðistofa
Vefsíða
https://www.liquid-light.fuw.edu.pl/

ORCID vefsíða
https://orcid.org/0000-0002-4156-4414
Rannsóknagátt – Helgi Sigurðsson

Útgefið efni

2024

Predesigned perovskite crystal waveguides for room-temperature exciton–polariton condensation and edge lasingNature Materials
Non-Hermitian polariton–photon coupling in a perovskite open microcavityNanophotonics
Versatile perovskites enable room-temperature topological polaritonicsNature Nanotechnology
Observation of spin precession resonance in a stirred quantum fluid of lightOptica
Dirac exciton–polariton condensates in photonic crystal gratingsNanophotonics
Reconfigurable quantum fluid molecules of bound states in the continuumNature Physics
Chiral and edge-lasing with perovskite crystals of arbitrary shape
Antiferromagnetic Ising model in a triangular vortex lattice of quantum fluids of lightScience advances
Occupancy-driven Zeeman suppression and inversion in trapped polariton condensatesPhysical Review B
All-optical triangular and honeycomb lattices of exciton–polaritonsApplied Physics Letters
Vortex clusters in a stirred polariton condensatePhysical Review B

2023

Magneto-optical induced supermode switching in quantum fluids of lightCommunications Physics
Quantum vortex formation in the “rotating bucket” experiment with polariton condensatesScience advances
Polariton vortex Chern insulator [Invited]Optical Materials Express
Next-nearest-neighbor coupling with spinor polariton condensatesPhysical Review B
Directional planar antennae in polariton condensatesApplied Physics Letters
Reservoir microlensing in polariton condensates
Minor embedding with Stuart-Landau oscillator networksPhysical Review Research

2022

Machine learning of phase transitions in nonlinear polariton latticesCommunications Physics
Electrically tunable Berry curvature and strong light-matter coupling in liquid crystal microcavities with 2D perovskiteScience advances
Spontaneous Formation of Time-Periodic Vortex Cluster in Nonlinear Fluids of LightPhysical Review Letters
Engineering Photon Statistics in a Spinor Polariton CondensatePhysical Review Letters
Enhanced coupling between ballistic exciton-polariton condensates through tailored pumpingPhysical Review B
Solving the max-3-cut problem with coherent networksPhysical Review Applied
Screening nearest-neighbor interactions in networks of exciton-polariton condensates through spin orbit couplingPhysical Review B
Persistent Self-Induced Larmor Precession Evidenced through Periodic Revivals of CoherencePhysical Review Letters

2021

Geometric frustration in polygons of polariton condensates creating vortices of varying topological chargeNature Communications
Engineering spatial coherence in lattices of polariton condensatesOptica
Realizing Optical Persistent Spin Helix and Stern-Gerlach Deflection in an Anisotropic Liquid Crystal MicrocavityPhysical Review Letters
Observation of second-order meron polarization textures in optical microcavitiesOptica
All-Optical Linear-Polarization Engineering in Single and Coupled Exciton-Polariton CondensatesPhysical Review Applied
Polariton spin jets through optical controlPhysical Review B
Quantum fluids of light in all-optical scatterer latticesNature Communications
Photonic Berry curvature in double liquid crystal microcavities with broken inversion symmetryPhysical Review B
Optically controlled polariton condensate moleculesPhysical Review B
Reservoir optics with exciton-polariton condensatesPhysical Review B
Vortex crystals in optically trapped exciton-polariton condensates
Quantum ﬂuids of light in all-optical scatterer latticesNature Communications

2020

Optical orientation, polarization pinning, and depolarization dynamics in optically confined polariton condensatesPhysical Review B
Pseudo-spin destabilization in optically confined exciton-polariton condensates
Lotka-Volterra population dynamics in coherent and tunable oscillators of trapped polariton condensatesPhysical Review B
Optical Control of Couplings in Polariton Condensate LatticesPhysical Review Letters
Synchronization in optically trapped polariton Stuart-Landau networksPhysical Review B
Synthetic band-structure engineering in polariton crystals with non-Hermitian topological phasesNature Communications
Time-delay polaritonicsCommunications Physics
Hysteresis in linearly polarized nonresonantly driven exciton-polariton condensatesPhysical Review Research

2019

All-to-All Intramodal Condensate Coupling by Multifrequency Excitation of PolaritonsACS Photonics
Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcationsPhysical Review B
Probabilistic solving of NP -hard problems with bistable nonlinear optical networksPhysical Review B
Optically trapped polariton condensates as semiclassical time crystalsPhysical Review A
Amplification of nonlinear polariton pulses in waveguidesOptics Express
Optical control of coupling in phase-locked polariton dyads
Observation of inversion, hysteresis, and collapse of spin in optically trapped polariton condensatesPhysical Review B

2018

Spin Domains in One-Dimensional Conservative Polariton SolitonsACS Photonics
Parity bifurcations in trapped multistable phase locked exciton-polariton condensatesPhysical Review B
Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by InteractionsPhysical Review Letters

2017

Spin Order and Phase Transitions in Chains of Polariton CondensatesPhysical Review Letters
Spontaneous and superfluid chiral edge states in exciton-polariton condensatesPhysical Review B
Electrical and optical switching in the bistable regime of an electrically injected polariton laserPhysical Review B
Parity solitons in nonresonantly driven-dissipative condensate channelsPhysical Review B
Driven-dissipative spin chain model based on exciton-polariton condensatesPhysical Review B

2016

Half-skyrmion spin textures in polariton microcavitiesPhysical Review B

2015

Aharonov-Bohm effect induced by circularly polarized lightSuperlattices and Microstructures
Aharonov-Bohm effect for excitons in a semiconductor quantum ring dressed by circularly polarized lightPhysical Review B - Condensed Matter and Materials Physics
Polariton spin whirlsPhysical Review B - Condensed Matter and Materials Physics
Switching waves in multilevel incoherently driven polariton condensatesPhysical Review B - Condensed Matter and Materials Physics

2014

Optically induced Aharonov-Bohm effect in mesoscopic ringsPhysical Review B - Condensed Matter and Materials Physics
Information processing with topologically protected vortex memories in exciton-polariton condensatesPhysical Review B - Condensed Matter and Materials Physics
Vortices in spinor cold exciton condensates with spin-orbit interactionPhysical Review B - Condensed Matter and Materials Physics

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