78 citations · 342 across the 23 of their papers we have counts for
5 papers · 1 filter
Anomalous dispersion via dissipative coupling in a quantum well exciton-polariton microcavity
Dąbrówka Biegańska, Maciej Pieczarka, Christian Schneider +3
Although energy level repulsion is typically observed in interacting quantum systems, non-Hermitian physics predicts the effect of level attraction, which occurs when significant e…
Optical properties and dynamics of direct and spatially and momentum indirect excitons in AlGaAs/AlAs quantum wells
Dąbrówka Biegańska, Maciej Pieczarka, Krzysztof Ryczko +5
We present an experimental study on optical properties and dynamics of direct and spatially and momentum indirect excitons in AlGaAs/AlAs quantum wells near the crossover between $…
Motional narrowing, ballistic transport, and trapping of room-temperature exciton polaritons in an atomically-thin semiconductor
M. Wurdack, E. Estrecho, S. Todd +7
Atomically-thin transition metal dichalcogenide crystals (TMDCs) hold great promise for future semiconductor optoelectronics due to their unique electronic and optical properties.…
Long-lived populations of momentum- and spin-indirect excitons in monolayer WSe
Shao-Yu Chen, Maciej Pieczarka, Matthias Wurdack +6
Monolayer transition metal dichalcogenides are a promising platform to investigate many-body interactions of excitonic complexes. In monolayer tungsten diselenide, the ground-state…
Ghost Branch Photoluminescence From a Polariton Fluid Under Nonresonant Excitation
Maciej Pieczarka, Marcin Syperek, Łukasz Dusanowski +8
An expanding polariton condensate is investigated under pulsed nonresonant excitation with a small laser pump spot. Far above the condensation threshold we observe a pronounced inc…