“…Moreover, it has been challenging to realize the desired multipole‐mode interference in complex hybrid resonant nanostructures or to provide suitable hotspots for coupling with optical emitters. The coupling between all‐dielectric nanoresonators or dielectric nanoparticles and either substrates or excitons has been demonstrated to address these challenges, giving rise to unique functionalities such as stronger far‐field scattering cross‐section, [ 183–187 ] directional Fano resonance, [ 39,104,188–190 ] subwavelength waveguiding, [ 43,191,192 ] splitting resonance phenomenon, [ 44,193 ] and near‐field confined local state density. [ 42,194–196 ] In this section, we review recent advances in the manipulation of scattering characteristics beyond single‐level resonators through the coupling effects that result from various particle dispositions, including but not limited to dimers, oligomers (trimers, tetramers, and hexamers), hybrid arrangements, and 1D/2D assemblies.…”