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Enhancement of the Binding Energy of Charged Excitons in Disordered Quantum Wires
T. Otterburg, D. Y. Oberli, M. -A. Dupertuis +5
Negatively and positively charged excitons are identified in the spatially-resolved photoluminescence spectra of quantum wires. We demonstrate that charged excitons are weakly loca…
Excitonic lasing in semiconductor quantum wires
L. Sirigu, D. Y. Oberli, L. Degiorgi +2
Direct experimental evidences for excitonic lasing is obtained in optically pumped V-groove quantum wire structures. We demonstrate that laser emission at a temperature of 10 K ari…
Effect of disorder on the temperature dependence of radiative lifetimes in V-groove quantum wires
D. Y. Oberli, M. -A. Dupertuis, F. Reinhardt +1
We have studied the effect of disorder on the radiative properties of semiconductor quantum wires by time-resolved photoluminescence spectroscopy. The dependence of the radiative l…