277 citations · 899 across the 14 of their papers we have counts for
5 papers · 1 filter
Electric field tunable exchange interaction in InAs/GaAs coupled quantum dots
Kushal C. Wijesundara, Mauricio Garrido, Swati Ramanathan +4
Spin manipulation in coupled quantum dots is of interest for quantum information applications. Control of the exchange interaction between electrons and holes via an applied electr…
Characterization of the Shell Structure in Coupled Quantum Dots through Resonant Optical Probing
Mauricio Garrido, Kushal C. Wijesundara, Swati Ramanathan +4
Excited states in single quantum dots (QDs) have been shown to be useful for spin state initialization and manipulation. For scalable quantum information processing it is necessary…
Photoluminescence Spectroscopy of the Molecular Biexciton in Vertically Stacked Quantum Dot Pairs
M. Scheibner, I. V. Ponomarev, E. A. Stinaff +5
We present photoluminescence studies of the molecular neutral biexciton-exciton spectra of individual vertically stacked InAs/GaAs quantum dot pairs. We tune either the hole or the…
Polarized fine structure in the excitation spectrum of a negatively charged quantum dot
M. E. Ware, E. A. Stinaff, D. Gammon +7
We report polarized photoluminescence excitation spectroscopy of the negative trion in single charge tunable InAs/GaAs quantum dots. The spectrum exhibits a p-shell resonance with…
Suppression of Dyakonov-Perel Spin Relaxation in high mobility n-GaAs
R. I. Dzhioev, K. V. Kavokin, V. L. Korenev +7
We report a large and unexpected suppression of the free electron spin relaxation in lightly-doped n-GaAs bulk crystals. The spin relaxation rate shows weak mobility dependence and…