摘要
Engineering of the orbital angular momentum(OAM)of light due to interaction with photonic lattices reveals rich physics and motivates potential applications.We report the experimental creation of regularly distributed quantized vortex arrays in momentum space by probing the honeycomb and hexagonal photonic lattices with a single focused Gaussian beam.For the honeycomb lattice,the vortices are associated with Dirac points.However,we show that the resulting spatial patterns of vortices are strongly defined by the symmetry of the wave packet evolving in the photonic lattices and not by their topological properties.Our findings reveal the underlying physics by connecting the symmetry and OAM conversion and provide a simple and efficient method to create regularly distributed multiple vortices from unstructured light.
基金
supported by the National Key R&D Program of China(Grant Nos.2018YFA0307500 and 2023YFA1407100)
the Key Scientific and Technological Innovation Team of Shaanxi Province(Grant No.2021TD-56)
the National Natural Science Foundation of China(Grant Nos.12074303,62022066,12074306,and 11804267)
the IBS Young Scientist Fellowship(Grant No.IBS-R024-Y3)
the Basis Foundation(Grant No.21-1-3-30-1)
the support of the European Union’s Horizon 2020 program,through an FET Open research and innovation action(Grant No.964770)(Topo Light)
he ANR projects Labex Ga NEXT(Grant No.ANR-11-LABX0014)
“NEWAVE”(Grant No.ANR-21-CE24-0019)
the ANR program“Investissements d’Avenir”through the IDEX-ISITE initiative 16-IDEX-0001(Grant No.CAP 20-25)
support by the Russian Science Foundation(Grant No.22-12-00144)
作者简介
Feng Li is a professor at Xi’an Jiaotong University,China.He received the bachelor’s and master’s degrees at Tianjin University,China,in 2006 and 2008,respectively.He obtained his PhD at CNRS and the University of Nice Sophia Antipolis,France,in 2013,supported by the European Marie Curie ITN project CLERMONT4.Subsequently,he worked as a research associate at the University of Sheffield,United Kingdom,from January 2014 to May 2017.He joined Xi’an Jiaotong University as a professor in June 2017,with a main research interest in light–matter interaction in microcavities and micro/nanostructures;Address all correspondence:Sergei V.Koniakhin received his BS and MS degrees in Peter the Great St.Petersburg Polytechnic University in 2012 and worked as a junior researcher at Ioffe Institute,St.Petersburg,Russia from 2010 to 2015,he defended his PhD thesis in 2016.From 2015 to 2021,he worked as a researcher and senior researcher in Zhores Alferov University,St.Petersburg.From 2017 to 2020,he was a PhD student at Institut Pascal,Clermont-Ferrand,France.He became a Young Scientist Fellowship Team Leader at the Physics of Complex Systems Center,Institute for Basic Science,Daejeon,Republic of Korea starting in 2021,kon@ibs.re.kr;Anton V.Nalitov obtained his master’s degree in condensed matter physics from Saint-Petersburg Academic(Zhores Alferov)University,Russia,in 2012,and his PhD from UniversitéBlaise Pascal,Clermont-Ferrand,France,in 2015.His professional path includes Ioffe Institute,University of Southampton,University of Iceland,and University of Wolverhampton.Currently,he is a senior research assistant at Abrikosov Center for Theoretical Physics,Moscow Institute of Physics and Technology;Evgeniia Cherotchenko obtained her master’s degree from Peter the Great St.Petersburg Polytechnic University in 2012 and her PhD from the University of Southampton in 2017.Her research experience includes working in ITMO University and currently she conducts her research in Ioffe Institute of the Russian Academy of Sciences;Dmitry D.Solnyshkov is a professor at the University Clermont Auvergne,France.He wrote his PhD thesis in France,in 2007,became an assistant professor in 2008,and obtained his HDR(second thesis)in 2012,to become a full professor in 2019.He was a junior member of Institut Universitaire de France in 2017 to 2022.He is a theoretician working on Bose–Einstein condensation,quantum fluids,strong light–matter coupling,and topology;Guillaume Malpuech is CNRS senior researcher at the Institut Pascal in Clermont Ferrand,France.He received his PhD in 2001 from the University Blaise Pascal and became CNRS researcher at the Institut Pascal in 2002.He is a theoretician working on excitonpolaritons,quantum fluids of light,and topological photonics.His major contributions are the proposals of room temperature polariton lasers,spin-orbit coupling of light based on TE-TM splitting,polariton Chern insulators,topological lasers,and quantum geometric tensor measurement;Address all correspondence:Zhaoyang Zhang received his doctoral degree in electronic science and technology from Xi’an Jiaotong University.He is currently a professor at the School of Electronic Science and Engineering at Xi’an Jiaotong University.His research focuses mainly on atomic physics and nonlinear optics,zhyzhang@xjtu.edu.cn.
