for the recent flourishing research in the field of optical metalenses. Metalenses are a type of
metasurface, used for focusing and imaging applications, and are implemented based on
the nanopatterning of an optical surface. The challenge faced by metalens research is to
reach high levels of performance using simple fabrication methods suitable for mass
production. In this paper, we present a Huygens nanoantenna-based metalens, designed for …