We present a metalens composed of integrated metasurfaces to achieve an optical needle with ultra-small optical resolution of λ/5. This metalens is promising for non-intrusive, far-field super-resolution optical imaging.
© 2019 The Author(s)
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription