103 citations · 144 across the 6 of their papers we have counts for
6 papers
Theoretical derivation of the bi- and tri-molecular trion formation coefficients
J. Berney, M. T. Portella-Oberli, B. Deveaud-Plédran
A theoretical investigation of the trion formation process from free carriers in a single GaAs/Al_{1-x}Ga_{x}As quantum well is presented. The mechanism for the formation process i…
Determination of Trion and Exciton Lineshapes in Modulation-Doped Quantum Wells
J. Berney, L. Schifferle, M. T. Portella-Oberli +1
We investigate the effect of a two dimensional electron gas on the linear optical properties of CdTe quantum wells. We evidence experimentally the high energy tail of the exciton a…
Dynamics of trion formation in GaAs quantum wells
M. T. Portella-Oberli, J. Berney, L. Kappei +3
We propose a double channel mechanism for the formation of charged excitons (trions); they are formed through bi- and tri-molecular processes. This directly implies that both negat…
Light dressed-excitons in an incoherent-electron sea: Evidence for Mollow-triplet and Autler-Townes doublet
Jean Berney, Marcia T. Portella-Oberli, Benoit Deveaud
We demonstrate that the interaction between excitons and a sea of incoherent electrons does not preclude excitons dressing by light. We investigate the role of exciton-electron sca…
Interacting many-body systems in quantum wells: Evidence for exciton-trion-electron correlations
M. T. Portella-Oberli, V. Ciulin, J. H. Berney +3
We report on the nonlinear optical dynamical properties of excitonic complexes in CdTe modulation-doped quantum wells, due to many-body interactions among excitons, trions and elec…
Direct measure of the exciton formation in quantum wells from time resolved interband luminescence
J. Szczytko, L. Kappei, J. Berney +3
We present the results of a detailed time resolved luminescence study carried out on a very high quality InGaAs quantum well sample where the contributions at the energy of the exc…