Surface acoustic wave modulation of a coherently driven quantum dot in a pillar microcavity

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• Mr Bruno Villa, University of Cambridge
• Wednesday 07 March 2018, 14:00-15:00
• Mott Seminar Room (Mott Building Room 531), Cavendish Laboratory.

If you have a question about this talk, please contact Dr Kaveh Delfanazari.

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 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.

This talk is part of the Semiconductor Physics Group Seminars series.

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