超表面透镜的像差分析和成像技术研究  

Research progress of aberration analysis and imaging technology based on metalens

作　　者：刘逸天 陈琦凯 唐志远 赵庆 片思杰 刘鑫航 林宏焘 郝翔[1] 刘旭[1] 马耀光[1] LIU Yi-tian;CHEN Qi-kai;TANG Zhi-yuan;ZHAO Qing;PIAN Si-jie;LIU Xin-hang;LIN Hong-tao;HAO Xiang;LIU Xu;MA Yao-guang(State Key Laboratory of Modern Optical Instrumentation,College of Optical Science and Engineering,In-ternational Research Center for Advanced Photonics,Zhejiang University,Hangzhou 310027,China;Key Laboratory of Micro-Nano Electronics and Smart System of Zhejiang Province,College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China;Hangzhou Najing Technology CO.,LTD.,Hangzhou 310012,China)

机构地区：[1]浙江大学现代光学仪器国家重点实验室,浙江大学光电科学与工程学院,教育部光子学国际合作联合实验室,浙江杭州310027 [2]浙江大学浙江省先进微纳器件智能系统研究省重点实验室,浙江大学信息与电子工程学院,浙江杭州310027 [3]杭州纳境科技有限公司,浙江杭州310012

出　　处：《中国光学》2021年第4期831-850,共20页Chinese Optics

基　　金：国家自然科学基金(No.61905213)。

摘　　要：传统光学透镜及光学系统基于光传播效应实现电磁波调控功能,其体积较大、不易集成。而超表面是由人工亚波长尺度单元构成的二维平面结构,由于其相对于传统透镜具有超薄的优势,并且可以实现对光场的任意调控,近年来在光学成像领域得到广泛研究和应用。本文阐述了超表面透镜的工作原理,分析了超表面成像透镜的单色像差和色像差成因以及对应的像质评价方法,之后综述了超表面成像透镜的研究现状及应用,最后总结了超表面在成像领域尚且存在的问题及其未来发展方向。超表面透镜便于集成、设计自由度高,有望在诸多应用领域取代传统成像器件,基于超表面的高效率、大视场、宽带、可重构可调谐成像器件将成为其未来重要发展方向。Traditional optical lenses and optical systems implement electromagnetic wave control based on the light propagation effect.So they usually suffer from the bulky size.Recently,metasurfaces comprised of artificial subwavelength structures have been widely studied,since they take great advantages of their sub-wavelength thickness and provide arbitrary control of electromagnetic waves.Here,the electromagnetic wave control mechanism is introduced.Then,we analyze the monochromatic aberrations and chromatic aberrations of the metalens and the corresponding image quality evaluation methods.Also,we discuss the research progress and applications of metalens for imaging.The exist problems and future goals are pointed out at the end of the review.Based on the advantages of portability and a high degree of design freedom,metalens are expected to replace the traditional imaging devices in many applications.High efficiency,large field of view,broadband,reconfigurable and tunable imaging devices based on metasurfaces will help in important future development directions.

关 键 词：超表面 成像 电磁波调控 像差 像质评价 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术] TH691.9[自动化与计算机技术—计算机科学与技术]