Nonradiating sources for efficient wireless power transfer

Abstract Nonradiating sources of energy realized under a wave scattering on high-index dielectric nanoparticles have attracted lot attention in nano-optics and nanophotonics. They do not emit to the far-field, but simultaneously provides strong near-field confinement. Near-field wireless power transfer technologies suffer from low efficiency short operation distance. The key factor improve is reduce radiation loss resonators included transmitter receiver. In this paper, we develop system based nonradiating implemented using colossal permittivity disk resonator subwavelength metal loop. We demonstrate that nature due hybrid anapole state originated by destructive interference fields generated multipole moments different parts source, without contribution toroidal moments. experimentally investigate prototype higher can be achieved when operating compared systems magnetic dipole quadrupole modes suppression.