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Thermal engineering in ALD-grown ZGO thin films for high-performance photodetectors

材料科学技术（英文版） 2025年第6期209卷 19-26页

作者： Si-Tong Ding Yu-Chang Chen Cai-Yu Shi Lei Shen Qiu-Jun Yu Lang-Xi Ou Ze-Yu Gu Na Chen Ting-Yun Wang David Wei Zhang Hong-Liang Lu State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics & SystemsSchool of MicroelectronicsFudan UniversityShanghai 200433China Zhangjiang Fudan International Innovation Center Shanghai 201203China National Integrated Circuit Innovation Center Shanghai 201203China Key Laboratory of Specialty Fiber Optics and Optical Access Networks Shanghai Institute Communication and Data ScienceShanghai UniversityShanghai 200444China State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics & SystemsSchool of MicroelectronicsFudan UniversityShanghai 200433China Zhangjiang Fudan International Innovation Center Shanghai 201203China National Integrated Circuit Innovation Center Shanghai 201203China Jiashan Fudan Institute Jiaxing 314100China

Doped gallium oxide-based thin films are a class of wide-band semiconductor materials with the ad-vantages of chemically stable,tunable bandgap,and offer the benefit of ultraviolet *** order to obtain photodetectors(PDs)with superior response,higher demands are placed on the quality of growth and processing of doped *** this work,Zn-doped ternary metal oxide ZnGaO(ZGO)thin films were grown using the atomic layer deposition technique and annealed at different temperatures under an oxy-gen *** results showed that the high-quality ZGO films with good uniformity,high visible light transmittance,low roughness,and significant reduction of oxygen vacancies were obtained after ***,metal-semiconductor-metal PDs were prepared based on the studied ZGO *** responsivity(R),detectivity(D*),and external quantum efficiency(EQE)of the optimized device are 61.8 A W-1,1.2 x 1012 Jones,and 255.9％,*** to the unannealed device,the an-nealed ZGO PD achieves a maximum 309-fold increase in *** thermal engineering work may provide a strong reference for the development of low-cost,large-area,high-performance ultraviolet *** it also broadens the application of ternary metal oxides in optoelectronics.

关键词： Atomic layer deposition Oxygen annealing ZGO thin films Photodetector Ultraviolet detection

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Physisorption-assistant optoelectronic synaptic transistors based on Ta2NiSe5/SnS2 heterojunction from ultraviolet to near-infrared

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光：科学与应用（英文版） 2025年第5期14卷 1278-1289页

作者： Fan Tan Chunlu Chang Nan Zhang Junru An Mingxiu Liu Xingyu Zhao Mengqi Che Zhilin Liu Yaru Shi Yahui Li Yanze Feng Chao Lin Yuquan Zheng Dabing Li Mario Lanza Shaojuan Li State Key Laboratory of Luminescence Science and Technology Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China University of Chinese Academy of Sciences(UCAS) Beijing 100049China State Key Laboratory of Luminescence Science and Technology Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Key Laboratory of Optical System Advanced Manufacturing Technology Chinese Academy of SciencesChangchun 130033China Materials Science and Engineering Program Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal 23955Saudi Arabia

Neuromorphic computing vision is the most promising technological solution to overcome the arithmetic bottleneck in machine vision ***-in-one neuromorphic sensors have been attracting increased attention because they can integrate visual perception,processing,and memory functionalities into one single ***,the limited responsivity and data retention time of all-in-one neuromorphic sensors usually hinder their potential in multispectral machine vision,especially in the near-infrared(NIR)band which contains critical information for pattern ***,we demonstrate physisorption-assistant optoelectronic synaptic transistors based on Ta2NiSe5/SnS2 heterojunction,which present tunable synaptic functionality in broadband(375-1310 nm).We propose a strategy about the physisorption-assistant persistent photoconductivity(PAPPC)effect to effectively solve the problem in detecting and storing the NIR light *** this strategy,the responsivity and data retention time of our devices were significantly enhanced and prolonged in broadband from 375 to 1310 ***,the devices realize multilevel non-volatile optoelectronic memory through the modulation of several optical and back-gate signals to simulate emotion-controlled learning and memory processes,optical writing-electric erasing,and associative ***,we developed a simplified human visual system to simulate color-cognitive perception and memory *** approach offers a route for creating advanced all-in-one neuromorphic sensors and developing neuromorphic computing vision.

关键词： from assistant based heterojunction near-infrared optoelectronic physisorption synaptic ta2nise5 transistors

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Band Structure Characteristics of Two-Dimensional Si-A (Ge, Pb, Sn) Alloy-Air Holes Thermal Crystals

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Journal of Shanghai Jiaotong university(Science) 2023年第2期28卷 180-185页

作者： AZKA Umar 姜淳 KHUSHIK Muhammad Hanif Ahmed Khan Key State Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong UniversityShanghai 200240China Department of Electronics Engineering Technology Benazir Bhutto Shaheed University of Technology and Skill DevelopmentKhairpur Mirs 66020SindhPakistan

This paper designs the thermal crystals composed of alloy materials with air holes and analyzes their properties of band structures,heat transmission,and flux *** crystals composed of Si-A(A=Ge,Sn,Pb)alloys as background materials and air holes with square array are used to construct an elastic-constant periodic structure and their high-frequency phononic band is calculated by deploying finite element ***,this paper investigates heat transmission through a finite array of thermally excited phonons and presents the thermal crystal with maximum heat *** results show that a wider bandgap could be achieved by increasing the air hole radius and decreasing the lattice *** the alloy materials,with increasing atomic radius and thus atomic mass(Ge,Sn,Pb),the frequency range(contributed to thermal conductivity)shifts towards lower ***,the bandgap frequencies also shift toward low frequency,but this decreasing rate is not constant or in order,so former may have a faster or slower decreasing rate than the ***,the frequency range for the contribution of heat transportation overlaps with the bandgap frequency *** development of thermal crystals is promising for managing heat and controlling the propagation of the thermal wave.

关键词： thermal crystals phonons finite element method band structure periodic structure lattice constant

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Time interval measurement with linear optical sampling at the femtosecond level

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Photonics Research 2023年第12期11卷 2222-2230页

作者： DONGRUI YU ZIYANG CHEN XUAN YANG YUNLONG XU ZIYI JIN PANXUE MA YUFEI ZHANG SONG YU BIN LUO HONG GUO State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronicsand Center for Quantum InformationTechnologyPeking UniversityBeijing 100871China State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China

High-precision time interval measurement is a fundamental technique in many advanced applications,including time and distance metrology,particle physics,and ultra-precision ***,many of these applications are confined by the imprecise time interval measurement of electrical signals,restricting the performance of the ultimate system to a few picoseconds,which limits ultrahigh precision ***,we demonstrate an optical means for the time interval measurement of electrical signals that can successfully achieve femtosecond(fs)level *** setup is established using the optical frequency comb(OFC)based linear optical sampling(LOS)technique to realize timescale-stretched *** achieve a measurement precision of 82 fs for a single LOS scan measurement and 3.05 fs for the 100-times average with post-processing,which is three orders of magnitude higher than the results of older electrical *** high-precision time interval measurement of electrical signals can substantially improve precision measurement technologies.

关键词： optical electrical linear

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Physical-Layer Hardware Authentication of Constellation Impairments Using Deep Learning 20

Physical-Layer Hardware Authentication of Constellation Impa...

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20th International Conference on optical Communications and networks, ICOCN 2022

作者： Zhang, Liuming Huang, Xinran Chai, Zhi Shen, Zanwei Yang, Xuelin Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai China

ISBN: (数字)9781665458986

ISBN: (纸本)9781665458986

关键词： Deep learning

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Hardware Fingerprint Authentication in optical networks Using Anomaly Detection 27

Hardware Fingerprint Authentication in Optical Networks Usin...

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27th OptoElectronics and Communications Conference/International Conference on Photonics in Switching and Computing, OECC/PSC 2022

作者： Kang, Linjiao Zhang, Liuming Huang, Xinran Hu, Weisheng Yang, Xuelin Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai China

We propose and demonstrate a hardware fingerprint authentication model in optical networks using anomaly detection, where the recognition accuracy of 97.53% and miss alarm rate % 0 are achieved over 20-km single-mode ... 详细信息

ISBN: (数字)9784885523366

ISBN: (纸本)9784885523366

关键词： Anomaly detection

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Erbium-doped Lithium Niobate Waveguide Amplifier

Erbium-doped Lithium Niobate Waveguide Amplifier

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2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023

作者： Cai, Minglu Wu, Kan Zhu, Di Long, Jiaxuan Chen, Jianping State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200000 China Singapore138634 Singapore

ISBN: (纸本)9798350345995

Lithium niobate on insulator (LNOI) has attracted great attention due to its outstanding material properties, such as strong electro-optic effect, large optical nonlinearity, lasing capability, etc. [1]. LNOI has proved to be a powerful platform for various photonic applications, and erbium-doped LNOI (Er: LNOI) with gain property has the potential to build a fully integrated photonic system with active components. Recently, many on-chip waveguide amplifiers and lasers based on Er: LNOI have been reported [2]. To our knowledge, benefiting from optimized waveguide structure, and pumping approaches, the 28.73 dB signal enhancement of the waveguide amplifier we have achieved is the highest one among all reported works on Er: LNOI. Moreover, we have demonstrated the signal amplification at the whole C band. © 2023 IEEE.

关键词： Nonlinear optics

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M3SC:A Generic Dataset for Mixed Multi-Modal(MMM)Sensing and Communication Integration

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China Communications 2023年第11期20卷 13-29页

作者： Xiang Cheng Ziwei Huang Lu Bai Haotian Zhang Mingran Sun Boxun Liu Sijiang Li Jianan Zhang Minson Lee State Key Laboratory of Advanced Optical Communication Systems and Networks School of ElectronicsPeking UniversityBeijing 100871China Joint SDU-NTU Centre for Artificial Intelligence Research(C-FAIR) Shandong UniversityJinan 250100China Ever-Florescence Technology Nanjing 210000China

The sixth generation(6G)of mobile communication system is witnessing a new paradigm shift,i.e.,integrated sensing-communication system.A comprehensive dataset is a prerequisite for 6G integrated sensing-communication *** paper develops a novel simulation dataset,named M3SC,for mixed multi-modal(MMM)sensing-communication integration,and the generation framework of the M3SC dataset is further *** obtain multimodal sensory data in physical space and communication data in electromagnetic space,we utilize Air-Sim and WaveFarer to collect multi-modal sensory data and exploit Wireless InSite to collect communication ***,the in-depth integration and precise alignment of AirSim,WaveFarer,andWireless InSite are *** M3SC dataset covers various weather conditions,multiplex frequency bands,and different times of the ***,the M3SC dataset contains 1500 snapshots,including 80 RGB images,160 depth maps,80 LiDAR point clouds,256 sets of mmWave waveforms with 8 radar point clouds,and 72 channel impulse response(CIR)matrices per snapshot,thus totaling 120,000 RGB images,240,000 depth maps,120,000 LiDAR point clouds,384,000 sets of mmWave waveforms with 12,000 radar point clouds,and 108,000 CIR *** data processing result presents the multi-modal sensory information and communication channel statistical ***,the MMM sensing-communication application,which can be supported by the M3SC dataset,is discussed.

关键词： multi-modal sensing ray-tracing sensing-communication integration simulation dataset

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The analysis on the hopping speed of the high speed and large-range frequency hopping receiver based on the simultaneous photonic filtering and digitizing system 2

The analysis on the hopping speed of the high speed and larg...

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advanced optical Manufacturing Technologies and Applications 2022, AOMTA 2022 and 2nd International Forum of Young Scientists on advanced optical Manufacturing, YSAOM 2022

作者： Yiwei, Sun Guiling, Wu Qinggui, Tan Dong, Liang Wei, Jiang Xi'an710110 China State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China

ISBN: (纸本)9781510661264

A recently proposed frequency hopping receiver based on the simultaneous photonics filtering and digitizing system can provide large receiving frequency range as well as high hopping speed by rapidly tuning the optical sampling pulses. With the increase of the hopping speed, the shape of the optical sampling pulses is changed rapidly, and the receiving performance, including the off-band suppression and receiving bandwidth of the proposed frequency hopping receiver is degraded. The performance degradation is indicated in experiments, evaluated theoretically, and analyzed by numerical simulations. Simulations on the shortest frequency hopping time indicate that the receiving passbands are broadened less than 10% with more than 25 sampling periods, and less than 1% with more than 225 sampling periods. The proposed frequency hopping receiver can receive frequency hopping signals with higher hopping speed by utilizing higher sampling rates. © 2023 SPIE.

关键词： Analog to digital conversion

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Displacement Sensor Based on Quasi Bound states in the Continuum of Localized Spoof Surface Plasmons 15

Displacement Sensor Based on Quasi Bound States in the Conti...

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15th International Conference on Microwave and Millimeter Wave Technology, ICMMT 2023

作者： Li, Si-Qi Li, Fan-Hong Zhu, Yu Du, Chao-Hai Peking University State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics No.5 YiHeYuan Road Haidian District Beijing100871 China

ISBN: (纸本)9798350338874

Quasi bound states in the continuum (quasi-BICs) of localized spoof surface plasmons (LSSPs) have weak radiation loss and high quality factors (Q-factors). In this paper, a displacement sensor based on the quasi-BICs of the LSSPs is proposed. The unit cell of the metasurface contains a circular grating and a circular dielectric sheet, and a plane wave is normally incident on the metasurface. When the circular grating and the circular dielectric sheet are concentric, only TE1,1 can be excited, TE2,1 and above are BICs and cannot be excited;when the circular grating and the circular dielectric sheet are offset by a displacement, TE2,1 and above transform into quasi-BICs and can be excited. The Q-factors of corresponding modes are related to the displacement, which is the principle of the sensor. Simulation is carried out and the feasibility of the sensor is verified. The sensor has the advantages of ultra-compact and high sensitivity. © 2023 IEEE.

关键词： Q factor measurement

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