title: Dephasing of triplet-sideband optical emission of a resonantly driven InAs/GaAs quantum dot inside a microcavity.
abstract: Detailed properties of resonance fluorescence from a single quantum dot in a micropillar cavity are investigated, with particular focus on emission coherence in the dependence on optical driving field power and detuning. A power-dependent series over a wide range reveals characteristic Mollow triplet spectra with large Rabi splittings of |Ω|≤15  GHz. In particular, the effect of dephasing in terms of systematic spectral broadening ∝Ω(2) of the Mollow sidebands is observed as a strong fingerprint of excitation-induced dephasing. Our results are in excellent agreement with predictions of a recently presented model on phonon-dressed quantum dot Mollow triplet emission in the cavity-QED regime.
authors.affiliation: Institut für Halbleiteroptik und Funktionelle Grenzflächen Research Center SCoPE, Universität Stuttgart, Stuttgart, Germany. s.ulrich@ihfg.uni-stuttgart.de
authors.forename: S M
authors.initials: SM
authors.lastname: Ulrich
authors.forename: S
authors.initials: S
authors.lastname: Ates
authors.forename: S
authors.initials: S
authors.lastname: Reitzenstein
authors.forename: A
authors.initials: A
authors.lastname: Löffler
authors.forename: A
authors.initials: A
authors.lastname: Forchel
authors.forename: P
authors.initials: P
authors.lastname: Michler