Generalized Kerker Effects in All-Dielectric Conical Nanoparticles

All-dielectric nanophotonics allows the study of new optical phenomena and different scattering characteristics from dielectric nanoparticles. These resonators have unique optical properties spanning both electrical and magnetic responses in the visible spectrum, offering promising applications in nano-optics, biology, sensing, and various other fields. Our research focuses on truncated cone resonators, which demonstrate the full range of generalized Kerker effects. This achievement is attributed to an inherent characteristic of cones—their asymmetry along the primary axis. Through a simple geometric approach, these effects enable the optimization of the fabrication of photonic devices with diverse functionalities.