Chip-integrated metasurface-enabled single-photon skyrmion sources

• URL: http://arxiv.org/abs/2601.06657v1
• Date: Sat, 10 Jan 2026 19:20:35 GMT
• Title: Chip-integrated metasurface-enabled single-photon skyrmion sources
• Authors: Xujing Liu, Yinhui Kan, Shailesh Kumar, Liudmilla F. Kulikova, Valery A. Davydov, Viatcheslav N. Agafonov, Sergey I. Bozhevolnyi,
• Abstract summary: metaQE platform enables room-temperature on-chip generation of single-photon skyrmions.<n>Near-field coupling between QEs and propitiously designed surface arrays of meta-atoms mediates spin-orbit interaction.<n>We realize diverse skyrmionic states, including high-order anti-skyrmions and skyrmionium.
• Score: 0.6840587119863305
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Skyrmions, topologically stable field configurations, have recently emerged in classical optics as structured light for high-density data applications. Achieving controllable on-chip generation of single-photon skyrmions, while being highly desirable for quantum information technologies, remains challenging due to the nanoscale confinement of quantum emitters (QEs). Here we demonstrate a metasurface-integrated quantum emitter (metaQE) platform enabling room-temperature on-chip generation of single-photon skyrmions. Near-field coupling between QEs and propitiously designed surface arrays of meta-atoms mediates spin-orbit interaction, transforming nanoscale-localized dipole emission into free-propagating topologically structured photonic modes. By exploiting this approach for structuring quantum emission from different color centers in nanodiamonds, we realize diverse skyrmionic states, including high-order anti-skyrmions and skyrmionium, and thereby demonstrate its universality across QEs. Our work establishes a unified framework for on-chip structured quantum light sources, offering versatile control of high-dimensional topological states, such as skyrmions, and advancing scalable quantum photonic technologies.

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