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Berlin 2018 – scientific programme

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DS: Fachverband Dünne Schichten

DS 27: New Twists for Nanoquakes on a Chip - Emerging Applications of Surface Acoustic Waves in Condensed Matter Physics (Focussed Session): Session I

DS 27.5: Talk

Thursday, March 15, 2018, 11:45–12:00, H 2032

Surface acoustic wave modulation of a coherently driven quantum dot in a pillar microcavity — •Bruno Villa1,2, Anthony J. Bennett1, David J. P. Ellis1, James P. Lee1,3, Joanna Skiba-Szymanska1, Thomas A. Mitchell2, Jonathan Griffiths2, Ian Farrer2, David A. Ritchie1, Christopher J. B. Ford2, and Andrew J. Shields11Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Cambridge Science Park, Milton Road, Cambridge CB4 0GZ, United Kingdom — 2Cavendish Laboratory, University of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, United Kingdom — 3Engineering Department, University of Cambridge, 9 J. J. Thomson Avenue, Cambridge, CB3 0FA, United Kingdom

In this work we demonstrate the generation of a high-frequency pulsed single-photon stream. A quantum dot embedded in a pillar microcavity efficiently scatters photons when driven coherently with a narrow-band continuous wave laser. Simultaneously, the transition energy is periodically tuned by a surface acoustic wave (SAW) propagating along the substrate at 1 GHz. The combined action of the light and strain fields on the quantum dot yields a periodic signal displaying anti-bunching. In addition we are able to resolve multiple phonon sidebands in the emission spectrum.

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