A Reusable Metasurface Template
arXiv:2104.14891 · doi:10.1021/acs.nanolett.0c02876
Abstract
Metasurfaces have revolutionized the design concepts for opticalcomponents, fostering an excitingfield offlat optics. Thanks to theflat and ultrathinnature, metasurfaces possess unique advantages over conventional optical components,such as lightweight, high compatibility, among others. To comply with potential appli-cations, further research endeavors need to be exerted for advancing the reusability andpracticality of metasurfaces. In this work, we demonstrate a reusable template approachto achieve optical multifunctionality with metasurfaces, utilizing both the geometric andpropagation phases to shape light waves. In principle, such a metasurface template can beemployed infinite times to enable a large variety of optical functions. As proof-of-conceptexperiments, we demonstrate metalensing, holography, and vortex beam shaping. Ourwork will leverage the high scalability aspects of metasurface devices for practical applications.
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