Co-excitation of magnetic anapole and quasi-BICs in an all-dielectric Si dimer metasurface

-factors are 321.0 at 1508.5 nm, 313.4 at 1535.5 nm, and 287.1 at 1693.7 nm, respectively. Additionally, the magnetic anapole state always persists throughout the entire structural transformation processes, and the effect of structural parameter variation on its formation is investigated. Our work provides insights into the design of multifunctional metasurfaces supporting multiple non-radiative scattering states; it also could advance magnetic anapole applications associated with magnetic molecules or magneto-optic effects.