Home | About Journal | Web Links | E-mail Alerts | RSS RSS Icon | Browse
Previous Article Next Article

Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots

Source: Phys. Rev. Lett. 104, 017402 (2010); doi:10.1103/PhysRevLett.104.017402

Published 8 January 2010

PACS
  • 78.67.Hc
    Optical properties of quantum dots
  • 42.50.Hz
    Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift
  • 71.38.-k
    Polarons and electron-phonon interactions
  • YEAR: 2010
PUBLICATION DATA
ISSN:
1553-9601 (online)
Publisher:
AIP is a member of CrossRef APS
A. J. Ramsay,1 Achanta Venu Gopal,2 E. M. Gauger,3 A. Nazir,4 B. W. Lovett,3 A. M. Fox,1 and M. S. Skolnick1
1Department of Physics and Astronomy, University of Sheffield, Sheffield, S3 7RH, United Kingdom
2DCMP & MS, Tata Institute of Fundamental Research, Mumbai 400 005, India
3Department of Materials, University of Oxford, Oxford OX1 3PH, United Kingdom
4Department of Physics and Astronomy, University College London, London, WC1E 6BT, United Kingdom
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. ©2010 The American Physical Society
History: Received 31 March 2009; published 8 January 2010
Permalink: http://link.aps.org/abstract/PRL/v104/e017402
ADVERTISEMENT