Abstract

A dielectric nanoantenna with a relatively large refractive index possesses magnetodielectric properties that can offer the unique opportunity to tailor unidirectional scattering. Herein, we demonstrate that the interference from electric and magnetic multipoles in the silicon hollow nanodisk suppresses backscattering and enhances forward scattering of light. This concept is implemented to design a lossless dielectric collector element, which constitutes an enabling technology for applications that require backward scattering suppression, such as nanoantennas and photovoltaic devices.

© 2018 Optical Society of America

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