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The ongoing effort to implement compact and cheap optical systems is the maindriving force for the recent flourishing research in the field of opticalmetalenses. Metalenses are a type of metasurface, used for focusing and imagingapplications, and are implemented based on the nanopatterning of an opticalsurface. The challenge faced by metalens research is to reach high levels ofperformance, using simple fabrication methods suitable for mass-production. Inthis paper we present a Huygens nanoantenna based metalens, designed foroutdoor photographic/surveillance applications in the near-infra-red. We showthat good imaging quality can be obtained over a field-of-view (FOV) as largeas +/-15 degrees. This first successful implementation of metalenses foroutdoor imaging applications is expected to provide insight and inspiration forfuture metalens imaging applications.

Near-IR wide field-of-view Huygens metalens for outdoor imaging applications