Electromechanical control of nitrogen-vacancy defect emission using graphene NEMS

Antoine Reserbat-Plantey, Kevin G. Schädler, Louis Gaudreau, Gabriele Navickaite, Johannes Güttinger, Darrick Chang, Costanza Toninelli, Adrian Bachtold () and Frank H. L. Koppens ()
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Antoine Reserbat-Plantey: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Kevin G. Schädler: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Louis Gaudreau: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Gabriele Navickaite: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Johannes Güttinger: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Darrick Chang: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Costanza Toninelli: CNR-INO, Istituto Nazionale di Ottica, LENS Via Carrara 1
Adrian Bachtold: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology
Frank H. L. Koppens: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology

Nature Communications, 2016, vol. 7, issue 1, 1-6

Abstract: Abstract Despite recent progress in nano-optomechanics, active control of optical fields at the nanoscale has not been achieved with an on-chip nano-electromechanical system (NEMS) thus far. Here we present a new type of hybrid system, consisting of an on-chip graphene NEMS suspended a few tens of nanometres above nitrogen-vacancy centres (NVCs), which are stable single-photon emitters embedded in nanodiamonds. Electromechanical control of the photons emitted by the NVC is provided by electrostatic tuning of the graphene NEMS position, which is transduced to a modulation of NVC emission intensity. The optomechanical coupling between the graphene displacement and the NVC emission is based on near-field dipole–dipole interaction. This class of optomechanical coupling increases strongly for smaller distances, making it suitable for nanoscale devices. These achievements hold promise for selective control of emitter arrays on-chip, optical spectroscopy of individual nano-objects, integrated optomechanical information processing and open new avenues towards quantum optomechanics.

Date: 2016
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DOI: 10.1038/ncomms10218

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