Journal
NATURE COMMUNICATIONS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms15225
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Funding
- National Basic Research Program of China
- Strategic Priority Research Program of the Chinese Academy of Sciences
- Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities
- Hefei Science Center of the Chinese Academy of Sciences
- Department of Education of the Basque Government [IT756/13]
- Spanish Ministry of Economy and Competitiveness [FIS2016-80174-P]
- European Union
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The coherent interaction between quantum emitters and photonic modes in cavities underlies many of the current strategies aiming at generating and controlling photonic quantum states. A plasmonic nanocavity provides a powerful solution for reducing the effective mode volumes down to nanometre scale, but spatial control at the atomic scale of the coupling with a single molecular emitter is challenging. Here we demonstrate sub-nanometre spatial control over the coherent coupling between a single molecule and a plasmonic nanocavity in close proximity by monitoring the evolution of Fano lineshapes and photonic Lamb shifts in tunnelling electron-induced luminescence spectra. The evolution of the Fano dips allows the determination of the effective interaction distance of similar to 1nm, coupling strengths reaching similar to 15meV and a giant self-interaction induced photonic Lamb shift of up to similar to 3meV. These results open new pathways to control quantum interference and field-matter interaction at the nanoscale.
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