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Two-dimensional materials-based integrated hardware

science China(Information sciences) 2023年第6期66卷 5-25页

作者： Zhuiri PENG Runfeng LIN Zheng LI Langlang XU Xiangxiang YU Xinyu HUANG Wenhao SHI Xiao HE Xiaohan MENG Lei TONG Xiangshui MIAO Lei YE School of Integrated Circuit Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and Technology Hubei Yangtze Memory Laboratories Department of Electronic Engineering and Materials Science and Technology Research Center The Chinese University of Hong Kong State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of Sciences

In recent years, two-dimensional(2D)materials-based fundamental preparing process such as high-quality wafer-level single crystal thin film synthesis technology and high-performance electrode preparing technology has developed rapidly. In addition, the integrated application prospect of 2D materials has been preliminarily verified, owing to the flat and clean interface between 2D materials and substrates. From the perspective of electronics and optoelectronics based on 2D materials, this paper will summarize the recent studies of integrated circuit hardware, integrated optoelectronic hardware, and hetero-integrated hardware,showing their advantages and potential application.

关键词： two-dimensional materials integrated circuit integrated sensor integrated optoelectronics

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Integrating 2D layered materials with 3D bulk materials as van der Waals heterostructures for photodetections:Current status and perspectives

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InfoMat 2023年第10期5卷 1-31页

作者： Weijie Liu Yiye Yu Meng Peng Zhihua Zheng Pengcheng Jian Yang Wang Yuanchen Zou Yongming Zhao Fang Wang Feng Wu Changqing Chen Jiangnan Dai Peng Wang Weida Hu Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhanthe People's Republic of China State Key Laboratory of Infrared Science and Technology Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghaithePeople's Republic of China State Key Laboratory of ASIC and System School of MicroelectronicsFudan UniversityShanghaithe People's Republic of China

In the last decade,two-dimensional layered materials(2DLMs)have been drawing extensive attentions due to their unique properties,such as absence of surface dangling bonds,thickness-dependent bandgap,high absorption coeffi-cient,large specific surface area,and so *** the high-quality growth and transfer of wafer-scale 2DLMs films is still a great challenge for the commerciali-zation of pure 2DLMs-based ***,the material growth and device fabrication technologies of three-dimensional(3D)semiconductors photodetectors tend to be gradually ***,the further improvement of the photodetection performance is limited by the difficult heterogeneous inte-gration or the inferior crystal quality via ***,2D/3D van der Waals heterostructures(vdWH)combine the advantages of the two types of materials simultaneously,which may provide a new platform for developing high-performance optoelectronic ***,we first discuss the unique advantages of 2D/3D vdWH for the future development of photodetection field and simply introduce the structure categories,working mechanisms,and the typical fabrication methods of 2D/3D vdWH ***,we outline the recent progress on 2D/3D vdWH-based photodetection devices integrating 2DLMs with the traditional 3D semiconductor materials,including Si,Ge,GaAs,AlGaN,SiC,and so ***,we highlight the current challenges and pros-pects of heterointegrating 2DLMs with traditional 3D semiconductors toward photodetection applications.

关键词： photodetectors three-dimensional semiconductors two-dimensional layered materials vander Waals heterostructures

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Two-dimensional violet phosphorus as a broadband saturable absorber for mid-infrared photonics

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Optics Express 2025年第10期33卷 21328-21338页

作者： Li, Bo Pan, Han Pan, Zhongben Chu, Hongwei Li, Ying Zhao, Shengzhi Li, Dechun School of Information Science and Engineering Shandong Provincial Key Laboratory of Laser Technology and Application Key Laboratory of Laser and Infrared System of Ministry of Education Shandong University Qingdao266237 China Key Laboratory of Colloid and Interface Chemistry of Education Ministry School of Chemistry and Chemical Engineering Shandong University Jinan250100 China

Two-dimensional (2D) violet phosphorus (VP), a recently investigated 2D semiconductor material, is promising for advanced optoelectronic applications because of its distinct physical and chemical features. In this work, high-quality, few-layered, 2D VP nanosheets were prepared, and their nonlinear optical (NLO) absorption characteristics were examined in detail in the 2 and 3 µm bands. The calculated high nonlinear absorption coefficients, low saturation intensities, and high modulation depths of 2D VP nanosheets demonstrated their exceptional mid-infrared (MIR) saturable absorption properties and significant potential for MIR photonic applications. Thus, in the Tm: GdVO4 laser and Er: YAP laser, we employed 2D VP as a broadband saturable absorber (SA), and obtained stable Q-switched pulse outputs with pulse durations of 522.6 ns at 1.9 µm and 195 ns at 2.8 µm, respectively. In particular, the pulse width obtained at 3 µm based on 2D VP-SA is much narrower compared to that obtained for most other 2D materials SAs. These results demonstrate that 2D VP can be a potential candidate for broadband MIR SA. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Nanosheets

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Unveiling impacts of PMD on spectral modulations in PM-fiber-based ultrafast amplifiers

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Chinese Optics Letters 2024年第12期22卷 57-62页

作者： Shang Wang Guanguang Gao Zhenhua Cong Zhaojun Liu Zhigang Zhao Key Laboratory of Laser&Infrared System Ministry of EducationShandong UniversityQingdao 266237China School of Information Science and Engineering Shandong UniversityQingdao 266237China Shanghai Institute of Optics and Fine Mechanics Chinese Academy of SciencesShanghai 201800China Shandong Provincial Key Laboratory of Laser Technology and Application Shandong UniversityQingdao 266237China

In this work,polarization mode dispersion(PMD)in polarization-maintaining(PM)fibers,to the best of our knowledge,is first proposed and experimentally proved to be responsible for severe spectral modulations in ultrafast PM fiber amplifiers,the introduction of which can give reasonable explanation for the dense spectral ripples imposed on the spectra of amplified lasers from the commonly used all-PM-fiber or hybrid“PM-fiber+bulk crystal”amplifiers,including both high-power amplifiers with remarkable nonlinear effects(self-phase modulation,SPM)and even low-power amplifiers with negligible nonlinear effects.

关键词： spectral modulation polarization mode dispersion self-phase modulation polarization-maintaining fibers

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Tuning coherent phonon dynamics in two-dimensional phenylethylammonium lead bromide perovskites

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Nano Research 2023年第2期16卷 3408-3414页

作者： Minghuan Cui Chaochao Qin Zhongpo Zhou Yuanzhi Jiang Shichen Zhang Zeye Yuan Mingjian Yuan Kun Yu Yuhai Jiang Yufang Liu Henan Key Laboratory of Infrared Materials&Spectrum Measures and Applications School of PhysicsHenan Normal UniversityXinxiang 453007China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Center for Transformative Science and School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China

Organic-inorganic layered perovskites are two-dimensional quantum well layers in which the layers of lead halide octahedra are stacked between the organic cation *** packing geometry of the soft organic molecules and the stiff ionic crystals induce structural deformation of the inorganic octahedra,generating complex lattice ***,the dielectric confinement and ionic sublattice lead to strong coupling between the photogenerated excitons and the phonons from the polar lattice which intensively affects the properties for device *** anharmonicity and dynamic disorder from the organic cations participate in the relaxation dynamics coupled with ***,a detailed understanding of this underlying mechanism remains *** work investigates the electron–optical phonon coupling dynamics by employing ultrafast pump-probe transient absorption *** activated different optical phonon modes are observed via systematic studies of(PEA)_(2)PbBr_(4) perovskite films on the ultrafast lattice vibrational *** experimental results indicate that solvent engineering has a significant influence on lattice vibrational modes and coherent phonon *** work provides fresh insights into electron-optical phonon coupling for emergent optoelectronics development based on layered perovskites.

关键词： two-dimensional perovskites electron–optical phonon coupling ultrafast dynamics transient absorption

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infrared Dim Small Target Detection Algorithm Based on Adaptive Attention Transformer Network

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Journal of Shanghai Jiaotong University (science) 2025年 1-13页

作者： Ding, Leqi Xia, Yilin Wang, Biyun Cai, Yunze Department of Automation Shanghai Jiao Tong UniversityKey Laboratory of System Control and Information Processing of Ministry of Education Shanghai200240 China National Key Laboratory of Air-based Information Perception and Fusion Henan Luoyang471009 China Shanghai Institute of Aerospace Control Technology Infrared Detection Technology R & D Center of China Aerospace Science and Technology Corporation Shanghai201109 China

This paper presents a novel algorithm for detecting infrared dim small targets in complex backgrounds by integrating both global and local feature information. The proposed method employs an adaptive attention transformer network which addresses challenges associated with computational complexity and information redundancy in traditional self-attention mechanisms. A global context aggregation module is designed to address the loss of small target features in high-level feature maps. This module compensates for spatial distribution information during the multi-scale feature fusion process, ensuring the preservation of target features. Comparison experiments were conducted on two datasets, NUAA-SIRST and IRSTD-1k. The proposed algorithm achieved 0.784 for mIoU and 0.878 for F-measure on NUAA-SIRST, 0.632 for mIoU and 0.807 for F-measure on IRST-1k, all of which are the highest values. The proposed algorithm shows a significant improvement over other existing detection algorithms, demonstrating its capability to accurately extract both local and global features of targets with high recall rates and low false alarm rates across various scenarios. The ablation study results highlight the significant improvements contributed by the key modules to the proposed algorithm. (Figure presented.) © Shanghai Jiao Tong University 2025.

关键词： A adaptive attention global context aggregation module infrared dim small target detection TP391.4 Transformer network

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MAGPNet: Multi-Domain Attention-Guided Pyramid Network for infrared Small Object Detection

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Journal of Shanghai Jiaotong University (science) 2024年 1-18页

作者： Ding, Leqi Wang, Biyun Yao, Lixiu Cai, Yunze Department of Automation Shanghai Jiao Tong UniversityKey Laboratory of System Control and Information Processing of Ministry of Education Shanghai200240 China National Key Laboratory of Air-based Information Perception and Fusion Henan Luoyang471009 China Shanghai Institute of Aerospace Control Technology Infrared Detection Technology R&D Center of China Aerospace Science and Technology Corporation Shanghai201109 China

To overcome the obstacles of poor feature extraction and little prior information on the appearance of infrared dim small targets, we propose a multi-domain attention-guided pyramid network (MAGPNet). Specifically, we design three modules to ensure that salient features of small targets can be acquired and retained in the multi-scale feature maps. To improve the adaptability of the network for targets of different sizes, we design a kernel aggregation attention block with a receptive field attention branch and weight the feature maps under different perceptual fields with attention mechanism. Based on the research on human vision system, we further propose an adaptive local contrast measure module to enhance the local features of infrared small targets. With this parameterized component, we can implement the information aggregation of multi-scale contrast saliency maps. Finally, to fully utilize the information within spatial and channel domains in feature maps of different scales, we propose the mixed spatial-channel attention-guided fusion module to achieve high-quality fusion effects while ensuring that the small target features can be preserved at deep layers. Experiments on public datasets demonstrate that our MAGPNet can achieve a better performance over other state-of-the-art methods in terms of the intersection of union, Precision, Recall, and F-measure. In addition, we conduct detailed ablation studies to verify the effectiveness of each component in our network. © 2024, Shanghai Jiao Tong University.

关键词： Software engineering

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Detection of manganese nodule ore based on underwater hyperspectral imaging technology 6

Detection of manganese nodule ore based on underwater hypers...

引用

6th Conference on Frontiers in Optical Imaging and technology: Applications of Imaging Technologies

作者： Shen, Mengling Men, Shaojie Liu, Bohan Li, Dewei Liu, Zhaojun School of Information Science and Engineering Shandong University China Key Laboratory of Laser and Infrared System Integration Technology Ministry of Education China Shandong Provincial Key Laboratory of Laser Technology and Application China National Deep Sea Center China

ISBN: (数字)9781510679757

ISBN: (纸本)9781510679740

Manganese nodules, widely distributed across the deep-sea floor, are emerging as a significant potential mineral resource. Addressing the need for improved exploration and classification methods, this study explores the application of underwater hyperspectral imaging technology for the detection and classification of manganese nodule ore and other rock types. The system, operating within a spectral range of 400 - 1000 nm and achieving a spectral resolution of less than 5 nm, captures the spectral characteristics and spatial information of manganese nodule ores. Different classifiers, including Spectral Angle Mapper (SAM), Support Vector Machine (SVM), and Convolutional Neural Networks (2D-CNN and 3D-CNN) to analyze the spectral data. Our results indicate that the four classifiers can effectively achieve ore classification, and CNN-based classifiers significantly outperform traditional SAM and SVM methods. The 2D-CNN model achieved the highest OA at 92.27%, closely followed by the 3D-CNN model at 91.77%. Our findings demonstrate the potential of underwater hyperspectral imaging combined with advanced machine learning techniques in marine mineral detection and environmental monitoring. © 2024 SPIE.

关键词： Support vector machines

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Mode-locked cylindrical vector vortex beam unlocked the generation of a 2 µm multidimensional ultrafast laser

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Optics Express 2025年第6期33卷 13001-13009页

作者： Kang, Hui Xu, Tong Miao, Kairui Zhu, Qiang Yao, Tianchen Song, Xiaozhao Ma, Jiacheng Zhou, Wei Qian, Zhisheng Xie, Zhengpin Gong, Yue Wang, Haotian Xu, Xiaodong Jia, Baohua Wang, Yishan Wang, Fei Shen, Deyuan Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronic Engineering Jiangsu Normal University Xuzhou221116 China Jiangsu Institute of Mid Infrared Laser Technology & Applications Xuzhou221000 China RMIT University MelbourneVIC3000 Australia State Key Laboratory of Ultrafast Optical Science and Technology Xi’an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi’an710119 China

The development of multidimensional lasers, particularly 2 µm vector vortex pulsed beams, has garnered significant interest for applications in laser medicine and optical communication. This paper reports the successful achievement of mode-locked azimuthally polarized vector beams (APVB) and radially polarized vector beams (RPVB) in a c-cut Tm:CaYAlO4 crystal cavity. Utilizing a semiconductor saturable absorber mirror (SESAM), the laser produced output powers of 110 mW (APVB) and 98 mW (RPVB), with pulse durations of 41.2 ps and 49.7 ps, and vortex topological charges of -1 and +1, respectively. This represents the first stable mode-locked states of the cylindrical vector vortex beam in a 2 µm solid-state laser. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Solid state lasers

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Extracting the effective mass of fewer layers 2D h-BN nanosheets using the Fowler-Nordheim tunneling model

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红外与毫米波学报 2024年第6期43卷 744-748页

作者： QIN Jia-Yi LUO Man CHENG Tian-Tian MENG Yu-Xin ZU Yuan-Ze WANG Xin YU Chen-Hui Jiangsu Key Laboratory of ASIC Design School of Information Science and TechnologyNantong UniversityNantong 226019China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Hexagonal boron nitride(h-BN)is found to have widespread application,owing to its outstanding properties,including gate dielectrics,passivation layers,and tunneling *** current studies on the funda⁃mental physical properties of these ultrathin h-BN films and the electron tunneling effect among them are inade⁃*** this work,the effective mass in h-BN was successfully determined through a combined approach of ex⁃perimental and theoretical research methods by fitting the current-voltage curves of metal/insulator/metal struc⁃*** was observed that within a range of 4-22 layers,the effective mass of h-BN exhibits a monotonic de⁃crease with an increase in the number of *** physical parameters of the Fowler-Nordheim tunneling model in the context of electron tunneling in h-BN are precisely ascertained by utilizing the extracted effective ***⁃ditionally,the impact of fixed charges at the metal/h-BN interface and various metal electrode types on FowlerNordheim tunneling within this structure is investigated utilizing this physical parameter in Sentaurus TCAD soft⁃*** work is informative and instructive in promoting applications in the fields of h-BN related infrared physics and technology.

关键词： h-BN 2D layered material Fowler-Nordheim tunneling gate dielectrics TCAD simulation

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