Ramsay, AJ;
Godden, TM;
Boyle, SJ;
Gauger, EM;
Nazir, A;
Lovett, BW;
Fox, AM;
(2010)
Phonon-Induced Rabi-Frequency Renormalization of Optically Driven Single InGaAs/GaAs Quantum Dots.
PHYS REV LETT
, 105
(17)
, Article 177402. 10.1103/PhysRevLett.105.177402.
Preview |
PDF
80970.pdf Download (948kB) |
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 14 pi. 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.
Type: | Article |
---|---|
Title: | Phonon-Induced Rabi-Frequency Renormalization of Optically Driven Single InGaAs/GaAs Quantum Dots |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1103/PhysRevLett.105.177402 |
Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.105.177402 |
Language: | English |
Additional information: | © 2010 The American Physical Society |
Keywords: | DYNAMICS, SYSTEM |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
URI: | https://discovery.ucl.ac.uk/id/eprint/80970 |
Archive Staff Only
View Item |