Dephasing of Polarons in InAs/GaAs Self-Assembled Quantum Dots

Evgeny A. Zibik; Ben A. Carpenter; Luke R. Wilson; John W. Cockburn; P. Jonathan Phillips; Nguyen Q. Vinh; Matthew J. Steer; Mark Hopkinson

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
Technical Digest (CD) (Optica Publishing Group, 2006),
paper QTuK2

Dephasing of Polarons in InAs/GaAs Self-Assembled Quantum Dots

Evgeny A. Zibik, Ben A. Carpenter, Luke R. Wilson, John W. Cockburn, P. Jonathan Phillips, Nguyen Q. Vinh, Matthew J. Steer, and Mark Hopkinson

Quantum Electronics and Laser Science Conference 2006

Long Beach, California United States
21–26 May 2006
ISBN: 1-55752-813-6

From the session
Dynamics of Dots, Rods and Tubes (QTuK)

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E. A. Zibik, B. A. Carpenter, L. R. Wilson, J. W. Cockburn, P. J. Phillips, N. Q. Vinh, M. J. Steer, and M. Hopkinson, "Dephasing of Polarons in InAs/GaAs Self-Assembled Quantum Dots," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optica Publishing Group, 2006), paper QTuK2.

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Abstract

Polaron dephasing processes are investigated using far-infrared degenerate four wave mixing. Long (~80ps) dephasing times are measured and a clear change from phonon-mediated to Auger-mediated dephasing is observed as the dot carrier population increases.

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