Phonon-induced Rabi-frequency renormalization of optically driven single InGaAs/GaAs quantum dots

A. J. Ramsay, T. M. Godden, S. J. Boyle, E. M. Gauger, Ahsan Nazir, B. W. Lovett, A. M. Fox, M. S. Skolnick

Research output: Contribution to journalArticle

143 Citations (Scopus)

Abstract

We study optically driven Rabi rotations of a quantum dot exciton transition between 5 and 50 K, and for pulse areas of up to 14p. In a high driving field regime, the decay of the Rabi rotations is nonmonotonic, and the period decreases with pulse area and increases with temperature. By comparing the experiments to a weak-coupling model of the exciton-phonon interaction, we demonstrate that the observed renormalization of the Rabi frequency is induced by fluctuations in the bath of longitudinal acoustic phonons, an effect that is a phonon analogy of the Lamb shift. © 2010 The American Physical Society.

Original languageEnglish
Article number177402
Pages (from-to)-
Number of pages4
JournalPhysical Review Letters
Volume105
Issue number17
DOIs
Publication statusPublished - 20 Oct 2010

Fingerprint Dive into the research topics of 'Phonon-induced Rabi-frequency renormalization of optically driven single InGaAs/GaAs quantum dots'. Together they form a unique fingerprint.

  • Cite this

    Ramsay, A. J., Godden, T. M., Boyle, S. J., Gauger, E. M., Nazir, A., Lovett, B. W., Fox, A. M., & Skolnick, M. S. (2010). Phonon-induced Rabi-frequency renormalization of optically driven single InGaAs/GaAs quantum dots. Physical Review Letters, 105(17), -. [177402]. https://doi.org/10.1103/PhysRevLett.105.177402