The Principle and Application of Achromatic Metalens

Metalenses, as ultrathin planar optical devices based on metasurfaces, have attracted significant research interest in recent years due to their compact structure and versatile light manipulation, showing great potential to replace traditional lenses in specific applications. This review focuses on...

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Main Authors: Runsheng Liu, Lihua Li, Jian Zhou
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/16/6/660
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author Runsheng Liu
Lihua Li
Jian Zhou
author_facet Runsheng Liu
Lihua Li
Jian Zhou
author_sort Runsheng Liu
collection DOAJ
description Metalenses, as ultrathin planar optical devices based on metasurfaces, have attracted significant research interest in recent years due to their compact structure and versatile light manipulation, showing great potential to replace traditional lenses in specific applications. This review focuses on the fundamental principles of geometric and propagation phases of metalenses, introducing their applications in achromatic aberration correction, and emphasizing their advantages and limitations. We further discuss the application of multilayer metalenses in zoom optical systems and summarize methods such as topology optimization and inverse design to enhance the efficiency of metalenses. Special attention is given to comparing broadband and discrete achromatic correction, highlighting their respective working principles, design challenges, and practical implications. Additionally, recent advances in using deep learning for image-side aberration correction are briefly discussed. Finally, we highlight various practical applications of metalenses and discuss future research directions.
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spelling doaj-art-1195bdcbabb74bdc8ff11bbe159f8d692025-08-20T02:21:14ZengMDPI AGMicromachines2072-666X2025-05-0116666010.3390/mi16060660The Principle and Application of Achromatic MetalensRunsheng Liu0Lihua Li1Jian Zhou2Guangdong-Hongkong-Macao Critical Optical Components Precision Manufacturing Research Center, Sino German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen 518118, ChinaGuangdong-Hongkong-Macao Critical Optical Components Precision Manufacturing Research Center, Sino German College of Intelligent Manufacturing, Shenzhen Technology University, Shenzhen 518118, ChinaSchool of Mechanical Engineering, Hefei University of Technology, Hefei 230009, ChinaMetalenses, as ultrathin planar optical devices based on metasurfaces, have attracted significant research interest in recent years due to their compact structure and versatile light manipulation, showing great potential to replace traditional lenses in specific applications. This review focuses on the fundamental principles of geometric and propagation phases of metalenses, introducing their applications in achromatic aberration correction, and emphasizing their advantages and limitations. We further discuss the application of multilayer metalenses in zoom optical systems and summarize methods such as topology optimization and inverse design to enhance the efficiency of metalenses. Special attention is given to comparing broadband and discrete achromatic correction, highlighting their respective working principles, design challenges, and practical implications. Additionally, recent advances in using deep learning for image-side aberration correction are briefly discussed. Finally, we highlight various practical applications of metalenses and discuss future research directions.https://www.mdpi.com/2072-666X/16/6/660achromatic metalensesapplication of metalenses
spellingShingle Runsheng Liu
Lihua Li
Jian Zhou
The Principle and Application of Achromatic Metalens
Micromachines
achromatic metalenses
application of metalenses
title The Principle and Application of Achromatic Metalens
title_full The Principle and Application of Achromatic Metalens
title_fullStr The Principle and Application of Achromatic Metalens
title_full_unstemmed The Principle and Application of Achromatic Metalens
title_short The Principle and Application of Achromatic Metalens
title_sort principle and application of achromatic metalens
topic achromatic metalenses
application of metalenses
url https://www.mdpi.com/2072-666X/16/6/660
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