Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon

查看全文 作　　者：Jingwen [1,2]Ma;Taojie [2,3]Zhou;Mingchu [3]Tang;Haochuan [2]Li;Zhan [2]Zhang;Xiang [1]Xi;Mickael [4]Martin;Thierry [4]Baron;Huiyun [3]Liu;Zhaoyu [2]Zhang;Siming [3]Chen;Xiankai [1]Sun

机构地区：[1]Department of Electronic Engineering,The Chinese University of Hong Kong,Shatin,New Territories,Hong Kong SAR,China;[2]School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen,Guangdong 518172,China;[3]Department of Electronic and Electrical Engineering,University College London,London WC1E 7JE,UK;[4]UniversitéGrenoble Alpes,CNRS,CEA-LETI,MINATEC,Grenoble INP,LTM,F-38054 Grenoble,France

出　　处：《Light(Science & Applications)》索引2023年第12卷第11期,共8页

基　　金：This work was supported by the Research Grants Council of Hong Kong(14209519,C4050-21E);The Chinese University of Hong Kong(Group Research Scheme),National Natural Science Foundation of China(62174144);Shenzhen Fundamental Research Fund(JCYJ20210324115605016,JCYJ20210324120204011);Shenzhen Key Laboratory Project(ZDSYS201603311644527),Optical Communication Core Chip Research Platform,UK Engineering and Physical Sciences Research Council(EP/P006973/1,EP/T01394X/1,EP/T028475/1);National Epitaxy Facility,European project H2020-ICT-PICTURE(780930);Royal Academy of Engineering(RF201617/16/28);French National Research Agency under the Investissements d’avenir ANR-10-IRT-05 and ANR-15-IDEX-02 and French RENATECH network.The devices were partially fabricated in the Core Research Facilities at Southern University of Science and Technology,whose engineers provided technical support. 摘　　要：Robust laser sources are a fundamental building block for contemporary information technologies.Originating from condensed-matter physics,the concept of topology has recently entered the realm of optics,offering fundamentally new design principles for lasers with enhanced robustness.In analogy to the well-known Majorana fermions in topological superconductors,Dirac-vortex states have recently been investigated in passive photonic systems and are now considered as a promising candidate for robust lasers.Here,we experimentally realize the topological Diracvortex microcavity lasers in InAs/InGaAs quantum-dot materials monolithically grown on a silicon substrate.We observe room-temperature continuous-wave linearly polarized vertical laser emission at a telecom wavelength.We confirm that the wavelength of the Dirac-vortex laser is topologically robust against variations in the cavity size,and its free spectral range defies the universal inverse scaling law with the cavity size.These lasers will play an important role in CMOS-compatible photonic and optoelectronic systems on a chip. 关键词：wave continuous CAVITY

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Room-temperature continuous-wave topological Dirac-vortex microcavity lasers on silicon

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