Resonant Coupling of Nonradiating Anapole States to Quantum Emitters

Resonant excitation and manipulation of high-index dielectric nanostructures (such as Silicon, Germanium) provide great opportunities for engineering novel optical phenomena and applications. Here, we report the results of resonant coupling of nonradiating anapole states in silicon nanospheres to quantum emitters in the form of J-aggregates under excitation with radially polarized cylindrical vector beams. The results show that the resonance coupling is accompanied by a scattering peak around the exciton transition frequency, and the anapole mode splits into a pair of eigenmodes. Resonant coupling of the anapole states and heterostructures could be a promising platform for future nanophotonic applications such as in information processing and sensing.