Hole-spin pumping and repumping in ap-type δ-doped InAs quantum dot

Hole-spin pumping and repumping in a p-type δ-doped InAs quantum dot

We have grown high quality p-type δ-doped InAs quantum dots and have demonstrated coherent spin pumping and repumping of a hole spin in a positively charged quantum dot by means of a single-laser driving scheme under a high magnetic field in the Voigt configuration. Modeling of our system shows excellent qualitative agreement with the experimental findings and further explores the performance o...

Strong hyperfine-induced modulation of an optically driven hole spin in an InAs quantum dot

S. G. Carter,1 Sophia E. Economou,1 A. Greilich,2,* Edwin Barnes,3 T. Sweeney,4,* A. S. Bracker,1 and D. Gammon1 1Naval Research Laboratory, Washington, D.C. 20375, USA 2University of Maryland contractor at the Naval Research Laboratory, Washington, D.C. 20375, USA 3Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA 4National Re...

Spin Properties in InAs/GaAs Quantum Dot based Nanostructures

Semiconductor quantum dots (QDs) are a promising building block of future spinfunctional devices for applications in spintronics and quantum information processing. Essential to the realization of such devices is our ability to create a desired spin orientation of charge carriers (electrons and holes), typically via injection of spin polarized carriers from other parts of the QD structures. In ...

Simulation of Direct Pumping of Quantum Dots in a Quantum Dot Laser

In this paper, the nonlinear rate equations governing a quantum dot laser isused to simulate the transient as well as the steady-state behaviors of the laser.Computation results show that the rate equations are capable of simulating true behaviorof a quantum dot laser. Then, the pump rates of the rate equations (which show indirectelectrical pumping of the quantum dots through a wetting layer) ...

Spin-phonon coupling in single Mn-doped CdTe quantum dot