Nanophotonic engineering of structured single-photon emission

Controlling single-photon emission at the nanoscale is vital for enabling scalable quantum information technologies. Nanophotonic structures have demonstrated remarkable capabilities in manipulating single-photon emission across multiple degrees of freedom. By exploiting nanoscale light-matter interactions, crucial functionalities, such as on-chip scalability, flexible wavefront shaping, and dynamic emission control, become feasible. This review summarizes recent advances in nanostructure-empowered single-photon emission and outlines key challenges and future opportunities.