107 citations · 314 across the 7 of their papers we have counts for
7 papers
Anomalous Hanle Effect in Quantum Dots : Evidence for Strong Dynamical Nuclear Polarization in Transverse Magnetic Field
O. Krebs, P. Maletinsky, T. Amand +5
Hanle effect is ubiquitous in the study of spin-related phenomena and has been used to determine spin lifetime, precession and transport in semiconductors. Here, we report an exper…
Hyperfine interaction in InAs/GaAs self-assembled quantum dots : dynamical nuclear polarization versus spin relaxation
O. Krebs, B. Eble, A. Lemaître +4
We report on the influence of hyperfine interaction on the optical orientation of singly charged excitons X+ and X- in self-assembled InAs/GaAs quantum dots. All measurements were…
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…
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…
Efficient dynamical nuclear polarization in quantum dots: Temperature dependence
B. Urbaszek, P. -F. Braun, X. Marie +4
We investigate in micro-photoluminescence experiments the dynamical nuclear polarization in individual InGaAs quantum dots. Experiments carried out in an applied magnetic field of…
Electrical spin injection into p-doped quantum dots through a tunnel barrier
L. Lombez, P. Renucci, P. Gallo +14
We have demonstrated by electroluminescence the injection of spin polarized electrons through Co/Al2O3/GaAs tunnel barrier into p-doped InAs/GaAs quantum dots embedded in a PIN GaA…