A. Högele, S. Seidl, M. Kroner, K. Karrai, M. Atatüre, J. Dreiser, A. Imamoglu, R. J. Warburton, B. D. Gerardot, P. M. Petroff
Published 2004-10-27, updated 2005-09-06Version 2
The ground state of neutral and negatively charged excitons confined to a single self-assembled InGaAs quantum dot is probed in a direct absorption experiment by high resolution laser spectroscopy. We show how the anisotropic electron-hole exchange interaction depends on the exciton charge and demonstrate how the interaction can be switched on and off with a small dc voltage. Furthermore, we report polarization sensitive analysis of the excitonic interband transition in a single quantum dot as a function of charge with and without magnetic field.
Comments: Conference Proceedings, Physics and Applications of Spin-Related Phenomena in Semiconductors, Santa Barbara (CA), 2004. 4 pages, 4 figures; content as published
Journal: Journal of Superconductivity 18 (2), 245-249 (2005)
Transform-limited single photons from a single quantum dot
Photonic engineering of InP-based structures to improve the emission extraction efficiency from a single quantum dot at 1.55 μm
Absorptive and dispersive optical responses of excitons in a single quantum dot
