Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots
Abstract
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.
Citation
Ramsay , A J , Gopal , A , Gauger , E M , Nazir , A , Lovett , B W , Fox , A M & Skolnick , M S 2010 , ' Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots ' , Physical Review Letters , vol. 104 , no. 1 , 017402 . https://doi.org/10.1103/PhysRevLett.104.017402
Publication
Physical Review Letters
Status
Peer reviewed
ISSN
0031-9007Type
Journal article
Description
The authors thank the EPSRC (UK) EP/G001642, the QIPIRC UK, and the UK-India Education Research Initiative/ Department of Science and Technology (India) for financial support. A. N. is supported by the EPSRC, and BWL by the Royal Society.Collections
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