Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

A. J. Ramsay; T. M. Godden; S. J. Boyle; E. M. Gauger; A. Nazir; B. W. Lovett; Achanta Venu Gopal; A. M. Fox; M. S. Skolnick

doi:10.1063/1.3577963

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

A. J. Ramsay^*, T. M. Godden, S. J. Boyle, E. M. Gauger, A. Nazir, B. W. Lovett, Achanta Venu Gopal, A. M. Fox, M. S. Skolnick

^*Corresponding author for this work

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

Abstract

Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity damped Rabi rotations in the case of detuned laser pulses. The results have implications for the coherent optical control of both excitons and spins using detuned laser pulses.

Original language	English
Article number	102415
Number of pages	5
Journal	Journal of Applied Physics
Volume	109
Issue number	10
DOIs	https://doi.org/10.1063/1.3577963
Publication status	Published - May 2011
Event	30th International Conference on the Physics of Semiconductors (ICPS-30) - Seoul, United Kingdom Duration: 25 Jul 2010 → 30 Jul 2010

Keywords

Dephasing
Excitons
Phonons
Quantum dots
Absorption spectra
Exctiton mediated interactions
III-V semiconductors

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10.1063/1.3577963

1.3577963
Copyright 2011, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics, Vol 109, Issue 10, and may be found at: http://scitation.aip.org/content/aip/journal/jap/109/10/10.1063/1.3577963
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title = "Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots",

abstract = "Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity damped Rabi rotations in the case of detuned laser pulses. The results have implications for the coherent optical control of both excitons and spins using detuned laser pulses.",

keywords = "Dephasing, Excitons, Phonons, Quantum dots, Absorption spectra, Exctiton mediated interactions, III-V semiconductors",

author = "Ramsay, {A. J.} and Godden, {T. M.} and Boyle, {S. J.} and Gauger, {E. M.} and A. Nazir and Lovett, {B. W.} and Gopal, {Achanta Venu} and Fox, {A. M.} and Skolnick, {M. S.}",

year = "2011",

month = may,

doi = "10.1063/1.3577963",

language = "English",

volume = "109",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "10",

note = "30th International Conference on the Physics of Semiconductors (ICPS-30) ; Conference date: 25-07-2010 Through 30-07-2010",

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TY - JOUR

T1 - Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

AU - Ramsay, A. J.

AU - Godden, T. M.

AU - Boyle, S. J.

AU - Gauger, E. M.

AU - Nazir, A.

AU - Lovett, B. W.

AU - Gopal, Achanta Venu

AU - Fox, A. M.

AU - Skolnick, M. S.

PY - 2011/5

Y1 - 2011/5

N2 - Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity damped Rabi rotations in the case of detuned laser pulses. The results have implications for the coherent optical control of both excitons and spins using detuned laser pulses.

AB - Recently, longitudinal acoustic phonons have been identified as the main source of the intensity damping observed in Rabi rotation measurements of the ground-state exciton of a single InAs/GaAs quantum dot. Here we report experiments of intensity damped Rabi rotations in the case of detuned laser pulses. The results have implications for the coherent optical control of both excitons and spins using detuned laser pulses.

KW - Dephasing

KW - Excitons

KW - Phonons

KW - Quantum dots

KW - Absorption spectra

KW - Exctiton mediated interactions

KW - III-V semiconductors

U2 - 10.1063/1.3577963

DO - 10.1063/1.3577963

M3 - Article

SN - 0021-8979

VL - 109

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

M1 - 102415

T2 - 30th International Conference on the Physics of Semiconductors (ICPS-30)

Y2 - 25 July 2010 through 30 July 2010

ER -

Effect of detuning on the phonon induced dephasing of optically driven InGaAs/GaAs quantum dots

Abstract

Keywords

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