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2024 IEEE Photonics Conference, IPC 2024

作者： Wang, Ze Li, Kangkang Wang, Yue Zhou, Xin Cheng, Yinke Jing, Boxuan Sun, Fengxiao Li, Jincheng Li, Zhilin Gong, Qihuang He, Qiongyi Li, Bei-Bei Yang, Qi-Fan Chinese Academy of Sciences Beijing National Laboratory for Condensed Matter Physics Institute of Physics Beijing100190 China Peking University State Key Laboratory for Artificial Microstructure and Mesoscopic Physics Frontiers Science Center for Nano-Optoelectronics School of Physics Beijing100871 China Shanxi University Collaborative Innovation Center of Extreme Optics Taiyuan030006 China Peking University Yangtze Delta Institute of Optoelectronics Jiangsu Nantong226010 China

ISBN: (纸本)9798350361957

We experimentally demonstrate reconfigurable and scalable continuous-variable cluster states by combining the Kerr microcombs with programmable bichromatic pumps within a single microresonator. The generated two-dimensional cluster states consist of 28 entangled modes in the frequency domain as required for universal quantum information processing. © 2024 IEEE.

关键词： Microcavities

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Directional emission in X-cut lithium niobate microresonators without chaos dynamics

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Photonics Research 2022年第2期10卷 401-406页

作者： Ang Gao Chen Yang Likun Chen Ru Zhang Qiang Luo Wei Wang Qitao Cao Zhenzhong Hao Fang Bo Guoouan Zhang Jingjun Xu MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Institute of Applied Physics and School of PhysicsNankai UniversityTianjin 300457China State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of PhysicsPeking UniversityBeijing 100871China

We systematically investigate the field distribution of the transverse electric modes in X-cut lithium niobate disks as an example of circular microcavities with anisotropic refractive index. A conserved quantity is discovered, which indicates the absence of chaos that generally exists in deformed microcavities and leads to a nontrivial directional emission. The emission directionality was theoretically investigated and experimentally verified by exciting highorder modes of an X-cut lithium niobate microresonator assisted with second harmonics. The field distribution analysis can enrich the knowledge in designing photonic devices that need precise control of field distribution,such as phase matching in nonlinear processes. Furthermore, the discovered emission phenomenon is momentous in enhancing and controlling communications between on-chip photonic devices.

关键词： lithium chaos directional

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Continuous-variable cluster states based on squeezed quantum microcombs

Continuous-variable cluster states based on squeezed quantum...

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CLEO: Fundamental Science, CLEO:FS 2024 - Part of Conference on Lasers and Electro-Optics, CLEO 2024

作者： Wang, Ze Li, Kangkang Wang, Yue Zhou, Xin Cheng, Yinke Jing, Boxuan Sun, Fengxiao Li, Jincheng Li, Zhilin Gong, Qihuang He, Qiongyi Li, Bei-Bei Yang, Qi-Fan State Key Laboratory for Artificial Microstructure and Mesoscopic Physics Frontiers Science Center for Nano-optoelectronics School of Physics Peking University Beijing100871 China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing100190 China Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan030006 China Peking University Yangtze Delta Institute of Optoelectronics Jiangsu Nantong226010 China

We experimentally demonstrate entangled qumodes in an optical microresonator with bichromatic pumping. They form a 2-dimensional continuous-variable cluster state via several four-wave mixing processes. © Optica ... 详细信息

ISBN: (纸本)9781957171395

关键词： Four wave mixing

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Evolution of Mechanisms in the Structural Design of Low-Filler Electromagnetic Wave Absorption Materials

SSRN

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SSRN 2024年

作者： Zou, Lichao Wang, Gehuan Liang, Fulin Zhuo, Yue Peng, Chao Liu, Zhigao Yuan, Quanping Chen, Jiabin School of Resources Environment and Materials Guangxi University Nanning530004 China State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of Physics Peking University Beijing100871 China

High-filler electromagnetic wave absorption (EMWA) materials suffer from low cost-effectiveness, which limits their market application. To address this issue, understanding the mechanism that guides the design and development of low-filler EMWA materials is crucial. In this work, we devise a sulfur-doped electro-magnetic network structure and propose a theory on the evolution of EMWA mechanisms in structural design. In details, by converting carbon fiber into a multi-channel hollow carbon fiber (MHCFs) structure, we establish a fundamental conductive network architecture and optimize impedance matching. On this foundation, metal-organic frameworks (MOFs) are incorporated to build an electro-magnetic coupling network architecture, enhancing interface polarization and thus significantly reducing the filler loading. To further enhance the overall performance of the architecture, sulfur is introduced into the multi-channel structure, substantially boosting conductive loss and promoting dipole polarization. Ultimately, when the filler loading is only 5 wt.%, the material exhibits impressive EMWA performance: the effective absorption bandwidth (EAB) reaches 7.1 GHz, and the reflection loss (RL) is -63.32 dB. This work not only illuminates the evolution of EMWA mechanisms within one-dimensional structural evolution but also provides a novel perspective and practical approach for designing low-loading EMWA materials. © 2024, The Authors. All rights reserved.

关键词： Magnetic couplings

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Microwave-rate dark pulse microcombs in integrated LiNbO3 microresonators

Microwave-rate dark pulse microcombs in integrated LiNbO3 mi...

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2024 Conference on Lasers and Electro-Optics/Pacific Rim, CLEO-PR 2024

作者： Lv, Xiaomin Nie, Binbin Yang, Chen Ma, Rui Wang, Ze Liu, Yanwu Jin, Xing Chen, Zhenyu Qian, Du Zhang, Guanyu Lv, Guowei Gong, Qihuang Bo, Fang Yang, Qi-Fan State Key Laboratory for Artificial Microstructure and Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of Physics Peking University Beijing100871 China Hefei National Laboratory Hefei230088 China Nankai University Tianjin300071 China Collaborative Innovation Center of Extreme Optics Shanxi University Taiyuan030006 China Peking University Yangtze Delta Institute of Optoelectronics Nantong226010 China

关键词： Microresonators

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AlN as interlayer for effective thermal dissipation from gallium nitride to CVD diamond using nanocrystalline diamond seeding

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Information & Functional Materials 2024年第3期1卷 331-337页

作者： Liwen Sang Meiyong Liao Bo Shen Institute of Optoelectronics Fudan UniversityShanghaiChina Research Center for Functional Materials National Institute for Materials ScienceTsukubaIbarakiJapan State Key Laboratory of Artificial Microstructure and Mesoscopic Physics School of PhysicsPeking UniversityBeijingChina

With the increasing power density achieved in gallium nitride(GaN)electronic devices,the thermal dissipation becomes a key issue that restricts their ultimate ***,the effective thermal boundary resistance(TBReff)between GaN and their heat spreader usually dominates the heat *** we introduce a super‐thin AlN interlayer with nanocrystalline diamond(NCD)seeding as the nucleation for the polycrystalline diamond(PCD)film growth on the GaN films.A thermal conductivity approaching 250 W/mK for the 1.2μm‐thick PCD film is *** TBReff between GaN and PCD films is estimated to be 5 m2K/GW,which is much smaller than that of the typical SiNx *** AlN can be deposited simultaneously with the device structure,this work is promising to achieve the full potential of using diamond as the heat spreader for GaN‐based transistors.

关键词： AlN diamond GaN thermal dissipation

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Microwave-Rate Dark Pulse Microcombs in Integrated LiNb03 Microresonators 16

Microwave-Rate Dark Pulse Microcombs in Integrated LiNb03 Mi...

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16th Pacific Rim Conference on Lasers and Electro-Optics, CLEO-PR 2024

作者： Lv, Xiaomin Nie, Binbin Yang, Chen Ma, Rui Wang, Ze Liu, Yanwu Jin, Xing Chene, Zhenyu Qian, Du Zhang, Guanyu Lv, Guowei Gong, Qihuang Bo, Fang Yang, Qi-Fan Hefei National Laboratory Hefei230088 China Nankai University Tianjin300071 China School of Physics Peking University State Key Laboratory for Artificial Microstructure and Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics Beijing100871 China Shanxi University Collaborative Innovation Center of Extreme Optics Taiyuan030006 China Peking University Yangtze Delta Institute of Optoelectronics Nantong226010 China

ISBN: (纸本)9798350372076

关键词： Microresonators

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Study on irradiation effect and damage mechanism in cascode GaN HEMT irradiated by 10 MeV electron

Space Solar Power and Wireless Transmission

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Space Solar Power and Wireless Transmission 2024年第1期1卷 61-68页

作者： Hongxia Li Yuxin Lu Rongxing Cao Xuelin Yang Xin Huang Yucai Wang Xianghua Zeng Yuxiong Xue College of Electrical Energy and Power EngineeringYangzhou UniversityYangzhou 225127China State Key Laboratory of Artificial Microstructure and Mesoscopic Physics Beijing 100871China Innovation Center for Irradiation Application Beijing 102413China

This study investigated the irradiation effect of cascode-structure GaN HEMT(High Electron Mobility Transistor)devices,employing high-energy electrons with an energy of 10 MeV and irradiation doses ranging from 5 to 80 Mrad(Si).The variation of electrical properties of the device under annealing condition was ***4 and TCAD simulations were used to analyze the irradiation effect and damage *** results show that the threshold voltage has obvious negative drift and the drain current increases after *** threshold voltage deviation amplitude of the device increases with the increase of irradiation dose,and the maximum deviation is *** at high temperatures(80℃,120℃ and 145℃)partially restores the electrical properties,with a 0.49 V restoration in threshold voltage at 145℃.Geant4 simulations reveal that enhanced Si MOSFET is more susceptible to total dose *** simulations of enhanced Si MOSFET devices demonstrate an increase in electric field intensity,trapped electron concentration,and hole concentration in Si and SiO_(2) layers with the increase of irradiation *** findings can provide support for the space application and irradiation hardening of cascode GaN HEMT devices.

关键词： Electron irradiation Total dose effect Cascode GaN HEMT High temperature annealing Electrical properties

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Superwetting structures treated by a femtosecond laser for spontaneous directional transport of droplets

Superwetting structures treated by a femtosecond laser for s...

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2024 Conference on Lasers and Electro-Optics/Pacific Rim, CLEO-PR 2024

作者： Yang, Shuai Li, Meng Li, Chu Yan, Linyu Li, Qiang Gong, Qihuang Li, Yan State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of Physics Peking University Beijing100871 China Frontiers Science Center for Nano-Optoelectronics Peking University Beijing100871 China Collaborative Innovation Center of Extreme Optics Shanxi University Shanxi Taiyuan030006 China Hefei National Laboratory Hefei230088 China Peking University Yangtze Delta Institute of Optoelectronics Nantong226010 China

The novel and green superwetting structures of Polyimide/Poly tetra fluoroethylene were treated with femtosecond laser processing to realise spontaneous directional transport of droplets, and a droplet-driven device w... 详细信息

关键词： Femtosecond lasers

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Superwetting surface processed by a femtosecond laser for spontaneous directional transport of fluid 8

Superwetting surface processed by a femtosecond laser for sp...

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Advanced Laser Processing and Manufacturing VIII 2024

作者： Yang, Shuai Li, Chu Li, Qiang Gong, Qihuang Li, Yan State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of Physics Peking University Beijing100871 China Frontiers Science Center for Nano-Optoelectronics Peking University Beijing100871 China Collaborative Innovation Center of Extreme Optics Shanxi University Shanxi Taiyuan030006 China Hefei National Laboratory Hefei230088 China Peking University Yangtze Delta Institute of Optoelectronics Nantong226010 China

ISBN: (数字)9781510681972

ISBN: (纸本)9781510681965

The precise control of fluid transport is of significant importance in intelligent systems and microfluidics. However, current researches typically involve either the directed transport of a single type of fluid or requires complex preparation processes. This work utilities the complementary superwetting surface of polyimide/Poly tetra fluoroethylene to achieve the spontaneous directional transport of water droplets and underwater bubbles through single femtosecond laser processing. This technology enables the preparation of flexible and diverse structures for complex fluid control. This work presents a novel approach to the control of fluid transport, with a multitude of applications in aerospace, medical and intelligent transportation. © 2024 SPIE.

关键词： Femtosecond lasers

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