Polychromatic full-polarization control in mid-infrared light
作者机构：State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of Sciences500 Yu Tian RoadShanghai 200083China Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesNo.1 SubLane XiangshanHangzhou 310024China Shanghai Research Center for Quantum Sciences99 Xiupu RoadShanghai 201315China University of Chinese Academy of ScienceNo.19 Yuquan RoadBeijing 100049China Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore 117583Singapore Institute of NanophotonicsJinan UniversityGuangzhou 511443China Center for Micro-and Nanoscale Research and FabricationUniversity of Science and Technology of ChinaHefei 230026China Institute of Precision Optical EngineeringSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China National University of Singapore Suzhou Research InstituteNo.377 Linquan StreetSuzhouJiangsu 215123China
出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)
年 卷 期：2023年第12卷第5期
页 面：894-904页
核心收录：
基 金：supported by National Key Research and Development Program of China(2018YFA0306200,2017YFA0700200,2017YFA0700202) National Natural Science Foundation of China(62204249,62222514,61731010,61875218,61991440,and 91850208) Youth Innovation Promotion Association of Chinese Academy of Sciences(Y2021070) Strategic Priority Research Program of Chinese Academy of Sciences(XDB43010200) Shanghai Rising-Star Program(20QA1410400) Shanghai Science and Technology Committee(23ZR1482000,20JC1416000,and 22JC1402900) Natural Science Foundation of Zhejiang Province(LR22F050004) Shanghai Municipal Science and Technology Major Project(2019SHZDZX01) Shanghai Human Resources and Social Security Bureau(2022670) China Postdoctoral Science Foundation(2022TQ0353 and 2022M713261) partially carried out at the Center for Micro and Nanoscale Research and Fabrication in University of Science and Technology of China the support by AME Individual Research Grant(IRG)funded by A*STAR,Singapore(Grant No.A2083c0060)
主 题：polarization light noise
摘 要：Objects with different shapes,materials and temperatures can emit distinct polarizations and spectral information in mid-infrared band,which provides a unique signature in the transparent window for object ***,the crosstalk among various polarization and wavelength channels prevents from accurate mid-infrared detections at high signal-to-noise ***,we report full-polarization metasurfaces to break the inherent eigen-polarization constraint over the wavelengths in *** recipe enables to select arbitrary orthogonal polarization basis at individual wavelength independently,therefore alleviating the crosstalk and efficiency degradation.A six-channel all-silicon metasurface is specifically presented to project focused mid-infrared light to distinct positions at three wavelengths,each with a pair of arbitrarily chosen orthogonal *** isolation ratio of 117 between neighboring polarization channels is experimentally recorded,exhibiting detection sensitivity one order of magnitude higher than existing infrared ***,the high aspect ratio~30 of our meta-structures manufactured by deep silicon etching technology at temperature−150℃ guarantees the large and precise phase dispersion control over a broadband from 3 to 4.5μ*** believe our results would benefit the noise-immune mid-infrared detections in remote sensing and space-to-ground communications.
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