Multiple channelling single-photon emission with scattering holography designed metasurfaces

Danylo Komisar (), Shailesh Kumar (), Yinhui Kan, Chao Meng, Liudmila F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov and Sergey I. Bozhevolnyi
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Danylo Komisar: University of Southern Denmark
Shailesh Kumar: University of Southern Denmark
Yinhui Kan: University of Southern Denmark
Chao Meng: University of Southern Denmark
Liudmila F. Kulikova: Russian Academy of Sciences
Valery A. Davydov: Russian Academy of Sciences
Viatcheslav N. Agafonov: GREMAN, CNRS, UMR 7347, INSA CVL, Université de Tours
Sergey I. Bozhevolnyi: University of Southern Denmark

Nature Communications, 2023, vol. 14, issue 1, 1-7

Abstract: Abstract Channelling single-photon emission in multiple well-defined directions and simultaneously controlling its polarization characteristics is highly desirable for numerous quantum technology applications. We show that this can be achieved by using quantum emitters (QEs) nonradiatively coupled to surface plasmon polaritons (SPPs), which are scattered into outgoing free-propagating waves by appropriately designed metasurfaces. The QE-coupled metasurface design is based on the scattering holography approach with radially diverging SPPs as reference waves. Using holographic metasurfaces fabricated around nanodiamonds with single Ge vacancy centres, we experimentally demonstrate on-chip integrated efficient generation of two well-collimated single-photon beams propagating along different 15° off-normal directions with orthogonal linear polarizations.

Date: 2023
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DOI: 10.1038/s41467-023-42046-3

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