title: Electromechanical control of nitrogen-vacancy defect emission using graphene NEMS.
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.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Antoine
authors.initials: A
authors.lastname: Reserbat-Plantey
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Kevin G
authors.initials: KG
authors.lastname: Schädler
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Louis
authors.initials: L
authors.lastname: Gaudreau
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Gabriele
authors.initials: G
authors.lastname: Navickaite
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Johannes
authors.initials: J
authors.lastname: Güttinger
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Darrick
authors.initials: D
authors.lastname: Chang
authors.affiliation: CNR-INO, Istituto Nazionale di Ottica, LENS Via Carrara 1, Sesto Fiorentino (FI) 50019, Italy.
authors.forename: Costanza
authors.initials: C
authors.lastname: Toninelli
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.
authors.forename: Adrian
authors.identifier: http://orcid.org/0000-0002-6145-2479
authors.initials: A
authors.lastname: Bachtold
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, Barcelona 08860, Spain.|ICREA - Institució Catalana de Recerça i Estudis Avancats, Barcelona, Spain.
authors.forename: Frank H L
authors.initials: FH
authors.lastname: Koppens