Fast electrical modulation of strong near-field interactions between erbium emitters and graphene

Daniel Cano, Alban Ferrier, Karuppasamy Soundarapandian, Antoine Reserbat-Plantey, Marion Scarafagio, Alexandre Tallaire, Antoine Seyeux, Philippe Marcus, Hugues de Riedmatten, Philippe Goldner, Frank H. L. Koppens () and Klaas-Jan Tielrooij ()
Additional contact information
Daniel Cano: ICFO – Institut de Ciències Fotòniques
Alban Ferrier: Université PSL, Chimie ParisTech, CNRS
Karuppasamy Soundarapandian: ICFO – Institut de Ciències Fotòniques
Antoine Reserbat-Plantey: ICFO – Institut de Ciències Fotòniques
Marion Scarafagio: Université PSL, Chimie ParisTech, CNRS
Alexandre Tallaire: Université PSL, Chimie ParisTech, CNRS
Antoine Seyeux: Université PSL, Chimie ParisTech, CNRS
Philippe Marcus: Université PSL, Chimie ParisTech, CNRS
Hugues de Riedmatten: ICFO – Institut de Ciències Fotòniques
Philippe Goldner: Université PSL, Chimie ParisTech, CNRS
Frank H. L. Koppens: ICFO – Institut de Ciències Fotòniques
Klaas-Jan Tielrooij: Catalan Institute of Nanoscience and Nanotechnology (ICN2), BIST and CSIC

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Combining the quantum optical properties of single-photon emitters with the strong near-field interactions available in nanophotonic and plasmonic systems is a powerful way of creating quantum manipulation and metrological functionalities. The ability to actively and dynamically modulate emitter-environment interactions is of particular interest in this regard. While thermal, mechanical and optical modulation have been demonstrated, electrical modulation has remained an outstanding challenge. Here we realize fast, all-electrical modulation of the near-field interactions between a nanolayer of erbium emitters and graphene, by in-situ tuning the Fermi energy of graphene. We demonstrate strong interactions with a >1000-fold increased decay rate for ~25% of the emitters, and electrically modulate these interactions with frequencies up to 300 kHz – orders of magnitude faster than the emitter’s radiative decay (~100 Hz). This constitutes an enabling platform for integrated quantum technologies, opening routes to quantum entanglement generation by collective plasmon emission or photon emission with controlled waveform.

Date: 2020
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DOI: 10.1038/s41467-020-17899-7

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