A Reusable Metasurface Template

TL;DR

This paper introduces a reusable metasurface template that can be employed multiple times to achieve various optical functions, enhancing the practicality and scalability of metasurface-based optical devices.

Contribution

The authors present a novel reusable metasurface template that utilizes geometric and propagation phases for multifunctional light shaping, enabling repeated use for diverse optical applications.

Findings

Successfully demonstrated metalensing, holography, and vortex beam shaping.

Template can be employed infinitely for different optical functions.

Enhances scalability and practicality of metasurface devices.

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.