Publications (5)
Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots
M. M. Glazov, I. A. Yugova, S. Spatzek +6
We have studied the Faraday rotation and ellipticity signals in ensembles of singly-charged (In,Ga)As/GaAs quantum dots by pump-probe spectroscopy. For degenerate pump and probe we…
Generation and detection of mode-locked spin coherence in (In,Ga)As/GaAs quantum dots by laser pulses of long duration
S. Spatzek, S. Varwig, M. M. Glazov +5
Using optical pulses of variable duration up to 80 ps, we report on spin coherence initialization and its subsequent detection in n-type singly-charged quantum dots, subject to a t…
Optical control of coherent interactions between quantum dot electron spins
S. Spatzek, A. Greilich, Sophia E. Economou +7
Coherent interactions between spins in quantum dots are a key requirement for quantum gates. We have performed pump-probe experiments in which pulsed lasers emitting at different p…
Temperature dependence of hole spin coherence in (In,Ga)As quantum dots measured by mode-locking and echo techniques
S. Varwig, A. René, A. Greilich +4
The temperature dependence of the coherence time of hole spins confined in self-assembled (In,Ga)As/GaAs quantum dots is studied by spin mode-locking and spin echo techniques. Cohe…
All-optical implementation of a dynamic-decoupling protocol for hole spins in (In,Ga)As quantum dots
S. Varwig, E. Evers, A. Greilich +4
We demonstrate the potential of a periodic laser-pulse protocol for dynamic decoupling of hole spins in (In,Ga)As quantum dots from surrounding baths. When doubling the repetition…