Directional and dynamic modulation of the optical emission of an individual GaAs nanowire using surface acoustic waves
arXiv:1410.2027 · doi:10.1021/nl1042775
Abstract
We report on optical experiments performed on individual GaAs nanowires and the ma- nipulation 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 SAW 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.
arXiv commentThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright \c{opyright} American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/nl1042775
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