Robust manipulation of electron spin coherence in an ensemble of singly charged quantum dots

Abstract

Using the recently reported mode locking effect we demonstrate a highly robust control of electron spin coherence in an ensemble of (In,Ga)As quantum dots during the single spin coherence time. The spin precession in a transverse magnetic field can be fully controlled up to 25 K by the parameters of the exciting pulsed laser protocol such as the pulse train sequence, leading to adjustable quantum beat bursts in Faraday rotation. Flipping of the electron spin precession phase was demonstrated by inverting the polarization within a pulse doublet sequence.

5 Pages, 3 figures

References in corpus (7)

• Single-shot read-out of an individual electron spin in a quantum dot
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
• Optical control of spin coherence in singly charged (In,Ga)As/GaAs quantum dots
• Optical Read-Out and Initialization of an Electron Spin in a Single Quantum Dot
• Measurement, control, and decay of quantum-dot spins
• Theory of nonlinear optical spectroscopy of electron spin coherence in quantum dots

Cited by in corpus (3)

• Nuclear Spins in Nanostructures
• Pump-Probe Faraday Rotation and Ellipticity in an Ensemble of Singly Charged Quantum Dots
• Temperature induced spin coherence dissipation in quantum dots