Abstract
In this paper, a bilayer ultrathin (≈0.153λ) metalens is presented by exploring the advantage of the metasurface with catenary shape and symmetry transformation. The simulation results show that the proposed metalens has high polarization conversion efficiency (>90% even when the incidence angle is 60°), and the wide-angle beam steering ability is beyond ± 70°. Compared with the previous beam steering lens with transmitted array, the metalens in this paper exhibits obvious advantages. Moreover, the longitudinal local catenary fields existing in this metalens can ensure the wide-angle operation for this structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
