Photon-pair generation via bound states in the continuum in nonlinear metasurfaces

Parry, MatthewMazzanti, AndreaPoddubny, AlexanderXu, LeiMiroshnichenko, AndreyValle, Giuseppe DellaNeshev, Dragomir N.Sukhorukov, Andrey A.2025-06-242025-06-249780646825045ORCID:/0000-0002-4508-8646/work/162528487http://www.scopus.com/inward/record.url?scp=85098048070&partnerID=8YFLogxKhttps://hdl.handle.net/1885/733764628We present a novel nonlinear metasurface featuring reconfigurable symmetry protected bound states in the continuum. It enhances photon-pair generation at non-degenerate photon frequencies via spontaneous parametric down-conversion, opening new opportunities for quantum spectroscopy and sensing.enPublisher Copyright: © 2020 IEEE.Photon-pair generation via bound states in the continuum in nonlinear metasurfaces202010.1364/CLEOPR.2020.C8G_285098048070