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
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