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Atom-referenced and stabilized soliton microcomb

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Science China(Physics,Mechanics & Astronomy) 2024年第2期67卷 2-8页

作者： Rui Niu Shuai Wan Tian-Peng Hua Wei-Qiang Wang Zheng-Yu Wang Jin Li Zhu-Bo Wang Ming Li Zhen Shen Yu Robert Sun Shui-Ming Hu Brent ELittle Sai Tak Chu Wei Zhao Guang-Can Guo Chang-Ling Zou yun-feng xiao Wen-Fu Zhang Chun-Hua Dong State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China University of Chinese Academy of Sciences Beijing 100049China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China Department of Physics and Materials Science City University of Hong KongHong Kong 999077China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

For the applications of the frequency comb in microresonators,it is essential to obtain a fully frequency-stabilized microcomb laser *** this study,we present a system for generating a fully atom-referenced stabilized soliton *** pump light around 1560.48 nm is locked to an ultra-low-expansion(ULE)*** pump light is then frequency-doubled and referenced to the atomic transition *** repetition rate of the soliton microcomb is injection-locked to an atomic-clockstabilized radio frequency(RF)source,leading to mHz stabilization at 1 *** a result,all comb lines have been frequencystabilized based on the atomic reference and the ULE cavity,achieving a very high precision of approximately 18 Hz at 1 s,corresponding to the frequency stability of 9.5×10^(-14).Our approach provides a fully stabilized microcomb experiment scheme with no requirement of f-2f technique,which could be easily implemented and generalized to various photonic platforms,thus paving the way towards the ultraprecise optical sources for high precision spectroscopy.

关键词： microcavity frequency comb dissipative Kerr solitons fully stabilized microcomb

Tailoring laser colors for super-multiplexed cell tagging

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Advanced Photonics 2023年第5期5卷 3-4页

作者： Xi Yang Shui-Jing Tang yun-feng xiao Peking University School of PhysicsFrontiers Science Center for Nano-Optoelectronicsand State Key Laboratory for Mesoscopic PhysicsBeijingChina Shanxi University Collaborative Innovation Center of Extreme OpticsTaiyuanChina Peking University Yangtze Delta Institute of OptoelectronicsNantongChina Peking University National Biomedical Imaging CenterBeijingChina

The miniaturization of lasers has opened up a wide variety of new applications,including on-chip optical communications,laser displays,medical imaging,and sensing.A representative example is the cell laser that emerged in 2011,in which a single biological cell expressing green fluorescent protein generated laser emission under optical pumping with nanojoule pulse inside a Fabry–Pérot microcavity.

关键词： laser pumping optical

Optical Microresonators feature issue introduction

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Photonics Research 2023年第12期11卷 I0001-I0003页

作者： yun-feng xiao KARTIK SRINIVASAN PASCAL DEL’HAYE MENGJIE YU Frontiers Science Center for Nano-optoelectronics and State Key Laboratory for Mesoscopic Physics School of PhysicsPeking UniversityBeijing 100871China Microsystems and Nanotechnology Division Physical Measurement LaboratoryNational Institute of Standards and TechnologyGaithersburgMaryland 20899USA Max Planck Institute for the Science of Light 91058 ErlangenGermany Ming Hsieh Department of Electrical and Computer Engineering University of Southern CaliforniaLos AngelesCalifornia 90089USA

Optical microresonators,which confine light in both the spatial and time domains,have advanced various research areas benefiting from significantly enhanced light-matter interactions,including integrated microlasers,nonlinear frequency conversion,Kerr frequency combs,and *** the past five years,the research interests in optical microresonators have rapidly expanded and combined with other disciplines,for example,optical chaos,non-Hermitian physics,and quantum *** cutting-edge research works have enabled the creation of optical microresonators with novel properties and capabilities.

关键词： materials chaos expanded

Spectrally multiplexed and bright entangled photon pairs in a lithium niobate microresonator

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Science China(Physics,Mechanics & Astronomy) 2022年第9期65卷 3-9页

作者： Bo-Yu Xu Li-Kun Chen Jin-Tian Lin Lan-Tian feng Rui Niu Zhi-Yuan Zhou Ren-Hong Gao Chun-Hua Dong Guang-Can Guo Qi-Huang Gong Ya Cheng yun-feng xiao Xi-feng Ren CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science Shanghai Institute of Optics and Fine Mechanics(SIOM)Chinese Academy of Sciences(CAS)Shanghai 201800China CAS Synergetic Innovation Center of Quantum Information&Quantum Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

On-chip bright quantum sources with multiplexing ability are extremely high in demand for integrated quantum networks with unprecedented scalability and ***,we demonstrate a bright and broadband biphoton quantum source with spectral multiplexing generated in a lithium niobate microresonator *** introducing the conventional domain poling,the on-chip microdisk produces photon pairs covering a broad bandwidth promised by natural phase matching in spontaneous parametric down ***,the multiplexed photon pairs are characterized by 30 nm bandwidth limited by the filtering system,providing over 40 multiplexing channels with a 0.8 nm channel ***,the generation rate reaches 5.13 MHz/μW with a coincidence-to-accidental ratio up to 804,and the quantum source manifests a high purity with a heralded single photon correlation g^((2))_(H)(0)=0.0098±***,the energy-time entanglement is demonstrated with an excellent interference visibility of 96.5%±2%.Such a quantum source at the telecommunication band paves the way for high-dimensional entanglement and future integrated quantum information systems.

关键词： quantum entangled source spectral multiplexing lithium niobate on insulator microresonator

Special Issue on the 60^(th)anniversary of the first laser-Series I:Microcavity Photonics-from fundamentals to applications

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Light(Science & Applications) 2021年第8期10卷 1395-1397页

作者： yun-feng xiao Frank Vollmer State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijingChina Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanChina Department of Physics and Astronomy Living Systems InstituteUniversity of ExeterExeterUK

Optical microcavities confine light to small volumes by resonant *** of their ultrahigh quality factors(Q)and small mode volumes(Vm),optical microcavities have attracted strong research interests for their unique property of significantly enhancing light-matter interaction.1 In recent decades,optical microcavities have become cornerstones for a wide range of studies and applications。

关键词： interaction. corners resonant

Trapping photons with optical black hole

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Light(Science & Applications) 2023年第4期12卷 507-508页

作者： You-Ling Chen Qi-Tao Cao yun-feng xiao State Key Laboratory on Integrated Optoelectronics Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Frontiers Science Center for Nano-optoelectronics&School of Physics Peking UniversityBeijing 100871China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006 ShanxiChina

An optical black-hole cavity based on transformation optics enables Q-factor enhancement and strong field confinement,by eliminating the intrinsic radiation loss of the conventional whispering-gallery modes,holding po... 详细信息

关键词： optics eliminating enable

Optical microcavity： from fundamental physics to functional photonics devices

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Science Bulletin 2016年第3期61卷 185-186页

作者： yun-feng xiao Qihuang Gong State Key Laboratory for Mesoscopic Physics and School ofPhysics Peking University Beijing 100871 China Collaborative Innovation Center of Quantum Matter Beijing 100871 China

Optical microcavities have attracted strong research interests,for their unique property of confining photons for a long time in small volumes,which significantly enhances light–matter interaction[1].In recent decades,various fabrication techniques of microcavities with higher quality factors(Q)and smaller mode volumes(V_m)have been developed,pushing forward studies from fundamental physics to functional photonics *** optomechanics provides an ideal platform for exploring the quantum nature of macroscopic objects[2]。

关键词：光学微腔光子器件物理功能量子信息处理时间性能相互作用制造技术质量因素

Fast nuclear-spin gates and electrons−nuclei entanglement of neutral atoms in weak magnetic fields

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Frontiers of physics 2024年第2期19卷 179-203页

作者： xiao-feng Shi School of Physics Xidian UniversityXi’an 710071China

We present a novel class of Rydberg-mediated nuclear-spin entanglement in divalent atoms with global laser ***,we show a fast nuclear-spin controlled phase gate of an arbitrary phase realizable either with two laser pulses when assisted by Stark shifts,or with three ***,we propose to create an electrons−nuclei-entangled state,which is named a super bell state(SBS)for it mimics a large Bell state incorporating three small Bell ***,we show a protocol to create a three-atom electrons-nuclei entangled state which contains the three-body W and Greenberger−Horne−Zeilinger(GHZ)states *** protocols possess high intrinsic fidelities,do not require single-site Rydberg addressing,and can be executed with large Rydberg Rabi frequencies in a weak,Gauss-scale magnetic *** latter two protocols can enable measurement-based preparation of Bell,hyperentangled,and GHZ states,and,specifically,SBS can enable quantum dense coding where one can share three classical bits of information by sending one particle.

关键词： nuclear-spin qubit electrons−nuclei entanglement super Bell state Greenberger−Horne−Zeilinger state Rydberg-mediated entanglement quantum dense coding

Emerging material platforms for integrated microcavity photonics

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Science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 10-28页

作者： Jin Liu Fang Bo Lin Chang Chun-Hua Dong Xin Ou Blake Regan xiaoqin Shen Qinghai Song Baicheng Yao Wenfu Zhang Chang-Ling Zou yun-feng xiao State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-sen UniversityGuangzhou 510000China MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Institute of Applied Physics and School of PhysicsNankai UniversityTianjin 300071China State Key Laboratory of Advanced Optical Communications System and Networks School of ElectronicsPeking UniversityBeijing 100871China CAS Key Lab of Quantum Information University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Functional Material for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China School of Mathematical and Physical Sciences University of Technology SydneyUltimo 2007Australia School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Harbin Institute of TechnologyShenzhen 518055China Key Laboratory of Optical Fiber Sensing and Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

Many breakthroughs in technologies are closely associated with the deep understanding and development of new material *** the main material used in microelectronics,Si also plays a leading role in the development of integrated *** indirect bandgap,absence ofχ(2)nonlinearity and the parasitic nonlinear absorptions at the telecom band of Si imposed technological bottlenecks for further improving the performances and expanding the functionalities of Si microcavities in which the circulating light intensity is dramatically *** past two decades have witnessed the burgeoning of the novel material platforms that are compatible with the complementary metal-oxide-semiconductor(COMS)*** particular,the unprecedented optical properties of the emerging materials in the thin film form have resulted in revolutionary progress in microcavity *** this review article,we summarize the recently developed material platforms for integrated photonics with the focus on chip-scale microcavity *** material characteristics,fabrication processes and device applications have been thoroughly discussed for the most widely used new material *** also discuss open challenges and opportunities in microcavity photonics,such as heterogeneous integrated devices,and provide an outlook for the future development of integrated microcavities.

关键词： microcavity integrated optics nonlinear optics