Multi-foci metalens for spectra and polarization ellipticity recognition and reconstruction  

作　　者：Hui Gao Xuhao Fan Yuxi Wang Yuncheng Liu Xinger Wang Ke Xu Leimin Deng Cheng Zeng Tingan Li Jinsong Xia Wei Xiong 

机构地区：[1]Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China [2]Optics Valley Laboratory,Wuhan 430074,China

出　　处：《Opto-Electronic Science》2023年第3期7-16,共10页光电科学（英文）

基　　金：We are grateful for financial supports from National Key Research and Development Program of China(Grant No.2021YFF0502700);National Natural Science Foundation of China(Grant Nos.52275429,62205117,61835008);Knowledge Innovation Program of Wuhan-Shuguang,Innovation project of Optics Valley Laboratory(Grant No.OVL2021ZD002);Hubei Provincial Natural Science Foundation of China(Grant Nos.2020CFA004,2022CFB792).

摘　　要：Multispectral and polarized focusing and imaging are key functions that are vitally important for a broad range of optical applications.Conventional techniques generally require multiple shots to unveil desired optical information and are implemented via bulky multi-pass systems or mechanically moving parts that are difficult to integrate into compact and integrated optical systems.Here,a design of ultra-compact transversely dispersive metalens capable of both spectrum and polarization ellipticity recognition and reconstruction in just a single shot is demonstrated with both coherent and incoherent light.Our design is well suited for integrated and high-speed optical information analysis and can significantly reduce the size and weight of conventional devices while simplifying the process of collecting optical information,thereby promising for various applications,including machine vision,minimized spectrometers,material characterization,remote sensing,and other areas which require comprehensive optical analysis.

关 键 词：metalens multispectral imaging polarized imaging spectra and polarization reconstruction 

分 类 号：TH74[机械工程—光学工程]