4 papers
Revealing the dark side of a bright exciton polariton condensate
J. -M. Mènárd, C. Poellmann, M. Porer +5
Condensation of bosons causes spectacular phenomena such as superfluidity or superconductivity. Understanding the nature of the condensed particles is crucial for active control of…
Microcavity design for low threshold polariton condensation with ultrashort optical pulse excitation
C. Poellmann, U. Leierseder, E. Galopin +5
We present a microcavity structure with a shifted photonic stop-band to enable efficient non-resonant injection of a polariton condensate with spectrally broad femtosecond pulses.…
Direct observation of internal quantum transitions and femtosecond radiative decay of excitons in monolayer WSe_2
C. Poellmann, P. Steinleitner, U. Leierseder +7
Atomically thin two-dimensional crystals have revolutionized materials science. In particular, monolayer transition metal dichalcogenides promise novel optoelectronic applications,…
Non-thermal separation of electronic and structural orders in a persisting charge density wave
M. Porer, U. Leierseder, J. -M. Ménard +7
The simultaneous ordering of different degrees of freedom in complex materials undergoing spontaneous symmetry-breaking transitions often involves intricate couplings that have rem…