Phyllotaxis-inspired nanosieves with multiplexed orbital angular momentum

作     者：Zhongwei Jin David Janoschka Junhong Deng Lin Ge Pascal Dreher Bettina Frank Guangwei Hu Jincheng Ni Yuanjie Yang Jing Li Changyuan Yu Dangyuan Lei Guixin Li Shumin Xiao Shengtao Mei Harald Giessen Frank Meyer zu Heringdorf Cheng-Wei Qiu Zhongwei Jin;David Janoschka;Junhong Deng;Lin Ge;Pascal Dreher;Bettina Frank;Guangwei Hu;Jincheng Ni;Yuanjie Yang;Jing Li;Changyuan Yu;Dangyuan Lei;Guixin Li;Shumin Xiao;Shengtao Mei;Harald Giessen;Frank Meyer zu Heringdorf;Cheng-Wei Qiu

作者机构：Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering Drive 3Singapore 117583Singapore College of Optical and Electronic TechnologyChina Jiliang UniversityHangzhou 310018China Faculty of Physics and Center for Nanointegration Duisburg-Essen(CENIDE)University of Duisburg-EssenLotharstrasse 1-2147057 DuisburgGermany Department of Materials Science and EngineeringShenzhen Institute for Quantum Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Beijing Qianjunyide Technology Co.LtdBeijing 100031China. Physics Institute and Stuttgart Center of Photonics Engineering(SCoPE)University of Stuttgart70569 Stutt-gartGermany. School of PhysicsUniversity of ElectronicScience and Technology of ChinaChengdu 611731China. Key Laboratory of Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China. Department of Electronic and Information EngineeringThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARChina. Department of Materials Science and EngineeringCity University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SARChina. State Key Laboratory On Tunable Laser TechnologyMinistry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information SystemShenzhen Graduate SchoolHarbin Institute of TechnologyShenzhen 518055China. 

出 版 物：《eLight》 (e光学（英文）)

年 卷 期：2021年第1卷第1期

页      面：46-56页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：supported by the National Research Foundation,Prime Minister’s Office,Singapore under Competitive Research Program Award NRF-CRP22-2019-0006 the grant(R-261-518-004-720)from Advanced Research and Technology Innovation Centre(ARTIC) the Deutsche Forschungsgemeinschaft(DFG,German Research Foundation)-Project-ID 278162697-SFB 1242 ERC Advanced Grant Complex Plan,BMBF,DFG and BW-Stiftung the Research Grants Council of Hong Kong(CRF Grant No.C6013-18G) the City University of Hong Kong(Project No.9610434) the support from A*STAR under its AME YIRG Grant(Award No.A2084c0172) 

主　　题：Phyllotaxis vortex nanosieve Free-space Plasmonic vortices Ultrafast time-resolved 

摘      要：Nanophotonic platforms such as metasurfaces,achieving arbitrary phase profiles within ultrathin thickness,emerge as miniaturized,ultracompact and kaleidoscopic optical vortex ***,it is often required to segment or interleave independent sub-array metasurfaces to multiplex optical vortices in a single nano-device,which in turn affects the device’s compactness and channel ***,inspired by phyllotaxis patterns in pine cones and sunflowers,we theoretically prove and experimentally report that multiple optical vortices can be produced in a single compact phyllotaxis nanosieve,both in free space and on a chip,where one meta-atom may contribute to many vortices *** time-resolved dynamics of on-chip interference wavefronts between multiple plasmonic vortices was revealed by ultrafast time-resolved photoemission electron *** nature-inspired optical vortex generator would facilitate various vortex-related optical applications,including structured wavefront shaping,free-space and plasmonic vortices,and high-capacity information metaphotonics.