109 citations · 1.1k across the 58 of their papers we have counts for
6 papers · 1 filter
Structuring co- and counter-flowing currents of polariton condensates in concentric ring-shaped potentials
Franziska Barkhausen, Matthias Pukrop, Stefan Schumacher +1
We investigate the current flow of microcavity polariton condensates loaded into concentric ring-shaped potentials. The tunneling of the condensates between different potential rin…
Chiral condensates in a polariton hexagonal ring
Xuekai Ma, Yaroslav V. Kartashov, Alexey Kavokin +1
We model generation of vortex modes in exciton-polariton condensates in semiconductor micropillars, arranged into a hexagonal ring molecule, in the presence of TE-TM splitting. Thi…
Topological edge states of nonequilibrium polaritons in hollow honeycomb arrays
Xuekai Ma, Yaroslav V. Kartashov, Albert Ferrando +1
We address topological currents in polariton condensates excited by uniform resonant pumps in finite honeycomb arrays of microcavity pillars with a hole in the center. Such current…
Spiraling vortices in exciton-polariton condensates
Xuekai Ma, Yaroslav V. Kartashov, Tingge Gao +2
We introduce the phenomenon of spiraling vortices in driven-dissipative (non-equilibrium) exciton-polariton condensates excited by a non-resonant pump beam. At suitable low pump in…
Formation dynamics of exciton polariton vortices created by non-resonant annular pumping
Bernd Berger, Daniel Schmidt, Xuekai Ma +4
We study the spontaneous formation of exciton polariton vortices in an all-optical non-resonantly excited annular trap, which is formed by ring-shaped subpicosecond laser pulses. S…
Exciton interaction induced spin splitting in MoS monolayer
Yao Li, G. Li, Xiaokun Zhai +11
By pumping nonresonantly a MoS monolayer at K under a circularly polarized cw laser, we observe exciton energy redshifts that break the degeneracy between B excitons with…