中国光学（中英文）2025，Vol.18Issue(6)：1267-1276,10.DOI:10.37188/CO.2025-0061
可见连续波段大视场消色差单片超构表面透镜
Achromatic monolayer metalens with elongated field of view in a continuous waveband
摘要
Abstract
Metalenses are subject to off-axis aberrations and material dispersion,which fundamentally limit their ability to achieve both wide field-of-view(FOV)and broad operational bandwidth in imaging detection systems.In this paper,an achromatic monolayer metalens with an elongated FOV in a continuous waveband is constructed using an elaborately designed metasurface.By leveraging a quadratic phase profile for large-field-of-view(FOV)detection,the metasurface unit structure transmission phase is subsequently optimized via particle swarm optimization(PSO)to achieve continuous band dispersion tuning.This approach con-sequently enables expanded operational bandwidth under wide-FOV conditions.For a monolayer metalens with a numerical aperture of 0.351,an achromatic focusing field covering a±20°FOV is obtained within the continuous waveband from 0.55 μm to 0.65 μm.The maximum focal length deviation along the optical axis is 3.2 μm(～0.08 f0),and the incident angle detection deviation≤1.34°.The proposed method can realize an achromatic monolayer metalens with an elongated FOV within a continuous waveband,which will have po-tential applications in lightweight and integrated optical imaging systems.关键词
超构表面透镜/宽带消色差/大视场Key words
metalens/achromatic/large field of view分类
信息技术与安全科学引用本文复制引用
黄昊华,李玮,刘睿,张伟,张婧英,李文昊..可见连续波段大视场消色差单片超构表面透镜[J].中国光学（中英文）,2025,18(6):1267-1276,10.基金项目
国家重点研发计划项目(No.2022YFF1202002) （No.2022YFF1202002）
国家自然科学基金(No.62005270) （No.62005270）
中国科学院稳定支持基础研究领域青年团队项目(No.YSBR-103)Supported by National Key R&D Program of China(No.2022YFF1202002) （No.YSBR-103）
National Natural Science Foundation of China(NSFC)(No.62005270) （NSFC）
CAS Project for Young Scientists in Basic Research(No.YS-BR-103) （No.YS-BR-103）
