title: Phonon-mediated coupling of InGaAs/GaAs quantum-dot excitons to photonic crystal cavities.
abstract: We demonstrate that the emission characteristics of site-controlled InGaAs/GaAs single quantum dots embedded in photonic crystal slab cavities correspond to single confined excitons coupled to cavity modes, unlike previous reports of similar systems based on self-assembled quantum dots. By using polarization-resolved photoluminescence spectroscopy at different temperatures and a theoretical model, we show that the exciton-cavity interaction range is limited to the phonon sidebands. Photon-correlation and pump-power dependence experiments under nonresonant excitation conditions further establish that the cavity is fed only by a single exciton.
authors.affiliation: Laboratory of Physics of Nanostructures, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland. milan.calic@epfl.ch
authors.forename: M
authors.initials: M
authors.lastname: Calic
authors.forename: P
authors.initials: P
authors.lastname: Gallo
authors.forename: M
authors.initials: M
authors.lastname: Felici
authors.forename: K A
authors.initials: KA
authors.lastname: Atlasov
authors.forename: B
authors.initials: B
authors.lastname: Dwir
authors.forename: A
authors.initials: A
authors.lastname: Rudra
authors.forename: G
authors.initials: G
authors.lastname: Biasiol
authors.forename: L
authors.initials: L
authors.lastname: Sorba
authors.forename: G
authors.initials: G
authors.lastname: Tarel
authors.forename: V
authors.initials: V
authors.lastname: Savona
authors.forename: E
authors.initials: E
authors.lastname: Kapon