Damping of exciton Rabi rotations by acoustic phonons in optically excited InGaAs/GaAs quantum dots.
We report experimental evidence identifying acoustic phonons as the principal source of the excitation-induced-dephasing (EID) responsible for the intensity damping of quantum dot excitonic Rabi rotations. The rate of EID is extracted from temperature dependent Rabi rotation measurements of the ground-state excitonic transition, and is found to be in close quantitative agreement with an acoustic-phonon model.
Ramsay
A J
AJ
Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, United Kingdom. a.j.ramsay@shef.ac.uk
Gopal
Achanta Venu
AV
Gauger
E M
EM
Nazir
A
A
Lovett
B W
BW
Fox
A M
AM
Skolnick
M S
MS