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

A. J. Ramsay; AchantaVenu Gopal; E. M. Gauger; A. Nazir; Brendon William Lovett; A. M. Fox; M. S. Skolnick

doi:10.1103/PhysRevLett.104.017402

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

A. J. Ramsay^*, AchantaVenu Gopal, E. M. Gauger, A. Nazir, Brendon William Lovett, A. M. Fox, M. S. Skolnick

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	017402
Number of pages	4
Journal	Physical Review Letters
Volume	104
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.104.017402
Publication status	Published - 8 Jan 2010

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10.1103/PhysRevLett.104.017402

ramsay2010physrevlett017402
© 2010. The American Physical Society.
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title = "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.",

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author = "Ramsay, \{A. J.\} and AchantaVenu Gopal and Gauger, \{E. M.\} and A. Nazir and Lovett, \{Brendon William\} and Fox, \{A. M.\} and Skolnick, \{M. S.\}",

note = "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.",

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AU - Ramsay, A. J.

AU - Gopal, AchantaVenu

AU - Gauger, E. M.

AU - Nazir, A.

AU - Lovett, Brendon William

AU - Fox, A. M.

AU - Skolnick, M. S.

N1 - 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.

PY - 2010/1/8

Y1 - 2010/1/8

N2 - 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.

AB - 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.

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DO - 10.1103/PhysRevLett.104.017402

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JO - Physical Review Letters

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ER -

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

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