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Polarization-dependent Rabi oscillations in single InGaAs quantum dots

By L. Besombes, J.J. Baumberg and J. Motohisa

Abstract

Measurements of optical Rabi oscillations in the excited states of individual InGaAs are presented. Under pulsed resonant excitation we observe Rabi oscillations with increasing pulse area, which are damped after the first maximum and minimum. We show that the observed damping comes from an additional non-resonant generation of carriers in the quantum dot. The observation of Rabi oscillations provides an efficient way of directly measuring the excitonic transitions' dipole moments. A polarization anisotropy of the dipole moment is resolved in some of the quantum dots

Topics: QC
Year: 2004
OAI identifier: oai:eprints.soton.ac.uk:14048
Provided by: e-Prints Soton

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