Adding a spin to Kerker's condition: arbitrary scattering direction tuning of nano-antennas with designed excitation

Abstract

We describe a method to control the directional scattering of a high index dielectric nanosphere, which utilizes the unique focusing properties of an azimuthally polarized phase vortex and a radially polarized beam to independently excite insde the nanosphere a spinning magnetic dipole and a linearly polarized electric dipole mode normal to the magnetic dipole. We show that by simply adjusting the phase and amplitude of the field on the exit pupil of the optical system, the scattering of the nanosphere can be tuned to any direction within a plane and the method works over a broad wavelength range.

References in corpus (3)

• Directional visible light scattering by silicon nanoparticles
• Magnetic light
• Chiral nanophotonic waveguide interface based on spin-orbit coupling of light

Cited by in corpus (9)

• Generalized Kerker Effects in Nanophotonics and Meta-Optics
• Janus and Huygens' dipolar sources for near-field directionality
• Constructing a chiral dipolar mode in an achiral nanostructure
• Transverse Kerker effect of localized electromagnetic sources
• Interferometric evanescent wave excitation of nano-antenna for ultra-sensitive displacement and phase metrology
• Huygens' Dipole for Polarization-Controlled Nanoscale Light Routing
• Directional scattering from particles under evanescent wave illumination: the role of reactive power
• Momentum-space geometric structure of helical evanescent waves and its implications on near-field directionality
• Selective Excitation of Subwavelength Atomic Clouds