Polarization-dependent ultrafast rabi oscillations in single InGaAs quantum dots

Besombes, L., Baumberg, J.J. and Motohisa, J. (2004) Polarization-dependent ultrafast rabi oscillations in single InGaAs quantum dots. Semiconductor Science and Technology, 19, (4), S148-S151. (doi:10.1088/0268-1242/19/4/052).


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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.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1088/0268-1242/19/4/052
ISSNs: 0268-1242 (print)
Related URLs:
Subjects: Q Science > QC Physics
Divisions : University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 14048
Accepted Date and Publication Date:
Date Deposited: 03 Feb 2005
Last Modified: 31 Mar 2016 11:26
URI: http://eprints.soton.ac.uk/id/eprint/14048

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