All-optical quantum coherent control of electron spin in semiconductor quantum dots

G Slavcheva, Ortwin Hess

Research output: Contribution to journalArticle

Abstract

We develop and apply a new dynamical model for rigorous description of circularly (elliptically) polarized ultrashort optical pulse interactions with the resonant nonlinearities in semiconductor optical waveguides. The method is based on self‐consistent solution in the time domain of the vector Maxwell equations for electromagnetic wave propagation coupled via macroscopic polarization to the coherent time‐evolution equations of a discrete N‐level system in terms of the real pseudospin (coherence) vector. We investigate theoretically the optically‐induced ultrafast resonant coherent spin dynamics in a singly charged semiconductor quantum dot. Onset of Rabi oscillations at sufficiently high excitation intensities is demonstrated numerically resulting in suppression of the spin relaxation and a longer decay time of the polarized photoluminescence.
Original languageEnglish
Article number969-970
JournalAIP Conference Proceedings
Volume893
DOIs
Publication statusPublished - 2007
Event28th International Conference on the Physics of Semiconductors, ICPS 2006 - Vienna, Austria
Duration: 24 Jul 200628 Jul 2006

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