title: Quantum dot opto-mechanics in a fully self-assembled nanowire.
abstract: We show that optically active quantum dots (QDs) embedded in MBE-grown GaAs/AlGaAs core-shell nanowires (NWs) are coupled to the NW mechanical motion. Oscillations of the NW modulate the QD emission energy in a broad range exceeding 14 meV. Furthermore, this opto-mechanical interaction enables the dynamical tuning of two neighboring QDs into resonance, possibly allowing for emitter-emitter coupling. Both the QDs and the coupling mechanism, i.e. material strain, are intrinsic to the NW structure and do not depend on any functionalization or external field. Such systems open up the prospect of using QDs to probe and control the mechanical state of a NW, or conversely of making a quantum nondemolition readout of a QD state through a position measurement.
authors.affiliation: Department of Physics, University of Basel , Klingelbergstrasse 82, 4056 Basel, Switzerland.
authors.forename: Michele
authors.initials: M
authors.lastname: Montinaro
authors.forename: Gunter
authors.initials: G
authors.lastname: Wüst
authors.forename: Mathieu
authors.initials: M
authors.lastname: Munsch
authors.forename: Yannik
authors.initials: Y
authors.lastname: Fontana
authors.forename: Eleonora
authors.initials: E
authors.lastname: Russo-Averchi
authors.forename: Martin
authors.initials: M
authors.lastname: Heiss
authors.forename: Anna
authors.initials: A
authors.lastname: Fontcuberta I Morral
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Warburton
authors.forename: Martino
authors.initials: M
authors.lastname: Poggio