A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings

Abstract Metasurfaces have attracted progressive attention as 2D metamaterials in recent years. Due to the ability to manipulate the phase, amplitude, and polarization of electromagnetic waves, metasurfaces have become a feasible way to control the wavefront. Here, two main platforms for exciting mu...

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Main Authors: Yuxiang Wang, Yueyi Yuan, Kuang Zhang
Format: Article
Language:English
Published: Wiley-VCH 2024-12-01
Series:Advanced Physics Research
Subjects:
Online Access:https://doi.org/10.1002/apxr.202400076
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author Yuxiang Wang
Yueyi Yuan
Kuang Zhang
author_facet Yuxiang Wang
Yueyi Yuan
Kuang Zhang
author_sort Yuxiang Wang
collection DOAJ
description Abstract Metasurfaces have attracted progressive attention as 2D metamaterials in recent years. Due to the ability to manipulate the phase, amplitude, and polarization of electromagnetic waves, metasurfaces have become a feasible way to control the wavefront. Here, two main platforms for exciting multi‐order diffraction beams in the far field based on metasurfaces, i.e., phase gradient metasurfaces (PGMs) and metagratings (MGs) are reviewed. First, the concept of generalized Snell's law (GSL) as well as the related works are presented. Then the connection between GSL and diffraction law is elaborated. The multi‐order diffraction methods based on the combination of the two principles are introduced. Following the discussion on several kinds of PGMs platforms for achieving multiple beams, the physical mechanisms of MGs are reviewed and recent progress is summarized. Finally, the typical challenges are outlined and the future development directions are prospected.
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spelling doaj-art-67fbd821c8ec4638ba735de3ec2b0f7a2025-08-20T02:50:07ZengWiley-VCHAdvanced Physics Research2751-12002024-12-01312n/an/a10.1002/apxr.202400076A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to MetagratingsYuxiang Wang0Yueyi Yuan1Kuang Zhang2School of Electronics and Information Engineering Harbin Institute of Technology Harbin 150001 ChinaSchool of Electronics and Information Engineering Harbin Institute of Technology Harbin 150001 ChinaSchool of Electronics and Information Engineering Harbin Institute of Technology Harbin 150001 ChinaAbstract Metasurfaces have attracted progressive attention as 2D metamaterials in recent years. Due to the ability to manipulate the phase, amplitude, and polarization of electromagnetic waves, metasurfaces have become a feasible way to control the wavefront. Here, two main platforms for exciting multi‐order diffraction beams in the far field based on metasurfaces, i.e., phase gradient metasurfaces (PGMs) and metagratings (MGs) are reviewed. First, the concept of generalized Snell's law (GSL) as well as the related works are presented. Then the connection between GSL and diffraction law is elaborated. The multi‐order diffraction methods based on the combination of the two principles are introduced. Following the discussion on several kinds of PGMs platforms for achieving multiple beams, the physical mechanisms of MGs are reviewed and recent progress is summarized. Finally, the typical challenges are outlined and the future development directions are prospected.https://doi.org/10.1002/apxr.202400076metagratingsmulti‐order diffractionphase gradient metasurphase
spellingShingle Yuxiang Wang
Yueyi Yuan
Kuang Zhang
A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
Advanced Physics Research
metagratings
multi‐order diffraction
phase gradient metasurphase
title A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
title_full A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
title_fullStr A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
title_full_unstemmed A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
title_short A Review of Multi‐Order Diffraction Beams: From Phase Gradient Metasurface to Metagratings
title_sort review of multi order diffraction beams from phase gradient metasurface to metagratings
topic metagratings
multi‐order diffraction
phase gradient metasurphase
url https://doi.org/10.1002/apxr.202400076
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