Print Email Facebook Twitter Adding a spin to Kerker’s condition: angular tuning of directional scattering with designed excitation Title Adding a spin to Kerker’s condition: angular tuning of directional scattering with designed excitation Author Wei, L. (TU Delft ImPhys/Optics) Bhattacharya, N. (TU Delft ImPhys/Optics) Urbach, Paul (TU Delft ImPhys/Optics) Date 2017-04-26 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 inside 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. To reference this document use: http://resolver.tudelft.nl/uuid:4e201b3b-95a5-4686-9fd4-942c718343e8 DOI https://doi.org/10.1364/OL.42.001776 ISSN 0146-9592 Source Optics Letters, 42 (9), 1776-1779 Part of collection Institutional Repository Document type journal article Rights © 2017 L. Wei, N. Bhattacharya, Paul Urbach Files PDF spin_ol_acceptedversion.pdf 780.19 KB Close viewer /islandora/object/uuid:4e201b3b-95a5-4686-9fd4-942c718343e8/datastream/OBJ/view