title: Directional and dynamic modulation of the optical emission of an individual GaAs nanowire using surface acoustic waves.
abstract: We report on optical experiments performed on individual GaAs nanowires and the manipulation of their temporal emission characteristics using a surface acoustic wave. We find a pronounced, characteristic suppression of the emission intensity for the surface acoustic wave propagation aligned with the axis of the nanowire. Furthermore, we demonstrate that this quenching is dynamical as it shows a pronounced modulation as the local phase of the surface acoustic wave is tuned. These effects are strongly reduced for a surface acoustic wave applied in the direction perpendicular to the axis of the nanowire due to their inherent one-dimensional geometry. We resolve a fully dynamic modulation of the nanowire emission up to 678 MHz not limited by the physical properties of the nanowires.
authors.affiliation: Lehrstuhl für Experimentalphysik 1 and Augsburg Centre for Innovative Technologies, Universität Augsburg, Universitätsstrasse 1, 86159 Augsburg, Germany.
authors.forename: Jörg B
authors.initials: JB
authors.lastname: Kinzel
authors.forename: Daniel
authors.initials: D
authors.lastname: Rudolph
authors.forename: Max
authors.initials: M
authors.lastname: Bichler
authors.forename: Gerhard
authors.initials: G
authors.lastname: Abstreiter
authors.forename: Jonathan J
authors.initials: JJ
authors.lastname: Finley
authors.forename: Gregor
authors.initials: G
authors.lastname: Koblmüller
authors.forename: Achim
authors.initials: A
authors.lastname: Wixforth
authors.forename: Hubert J
authors.initials: HJ
authors.lastname: Krenner
mesh_terms: D000162:Acoustics; D001152:Arsenicals / Q000737:chemistry*; D005708:Gallium / Q000737:chemistry*; D008027:Light; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012542:Scattering, Radiation; D014732:Vibration
chemical_list: D001152:Arsenicals; C043055:gallium arsenide; D005708:Gallium