Single-gate electro-optic beam switching metasurfaces.

ABSTRACT: Electro-optic active metasurfaces have attracted attention due to their ability to electronically control optical wavefronts with unprecedented spatiotemporal resolutions. In most studies, such devices require gate arrays composed of a large number of independently-controllable local gate electrodes that address the local scattering response of individual metaatoms. Although this approach in principle enables arbitrary wavefront control, the complicated driving mechanism and low optical efficiency have been hindering its practical applications. In this work, we demonstrate an active beam switching device that provides highly directional beam profiles and significant and uniform optical efficiencies across diffraction orders separated by a large deflection angle. The device operates with on

SUBMITTER: Han S 

PROVIDER: S-EPMC12381093 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature