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Bunching visibility for correlated photons from single GaAs quantum dots
T. Kuroda, T. Belhadj, M. Abbarchi +11
We study photon bunching phenomena associated with biexciton-exciton cascade in single GaAs self-assembled quantum dots. Experiments carried out with a pulsed excitation source sho…
Hole - Nuclear Spin Interaction in Quantum Dots
B. Eble, C. Testelin, P. Desfonds +7
We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe photo-induced circular dichroism and time-resolved photoluminescence experiments. We show…
Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy
Thomas Belhadj, Takashi Kuroda, Claire-Marie Simon +6
We report optical orientation experiments in individual, strain free GaAs quantum dots in AlGaAs grown by droplet epitaxy. Circularly polarized optical excitation yields strong cir…
Exciton and hole spin dynamics in ZnO
D. Lagarde, A. Balocchi, P. Renucci +7
The carrier spin dynamics in ZnO is investigated by time-resolved optical orientation experiments. We evidence a clear circular polarization of the donor-bound exciton luminescence…
Light-induced nuclear quadrupolar relaxation in semiconductors
Daniel Paget, Thierry Amand, J. P. Korb
Light excitation of a semiconductor, known to dynamically-polarize the nuclear spins by hyperfine contact interaction with the photoelectrons, also generates an intrinsic nuclear d…