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Correction to “Topological Insulator Bi2Se3Heterojunction with a Low Dark Current for Midwave infrared Photodetection”

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ACS Photonics 2024年第12期11卷 5453页

作者： Tiange Zhao Yue Chen Tengfei Xu Fang Zhong Yiye Yu Hang Ma Kun Zhang Shikun Duan Jiapeng Hu Shicheng Wang Jiaxiang Guo Zhen Wang State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences 500 Yutian Road Shanghai 200083 China University of Chinese Academy of Sciences Beijing 100049 China Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 China School of Materials State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen University Guangzhou 510275 China

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Epitaxial growth of metal-semiconductor van der Waals heterostructures NbS2/MoS2 with enhanced performance of transistors and photodetectors

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science China Materials 2020年第8期63卷 1548-1559页

作者： Peng Zhang Ce Bian Jiafu Ye Ningyan Chen Xingguo Wang Huaning Jiang Yi Wei Yiwei Zhang Yi Du Lihong Bao Weida Hu Yongji Gong School of Materials Science and Engineering Beihang UniversityBeijing 100191China Institute of Physics&University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100190China State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Institute for Superconducting and Electronic Materials(ISEM) Australian Institute for Innovation Materials(AIIM)University of WollongongNSW 2522Australia State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for MaterialsBeijing University of Chemical TechnologyBeijing 100029China Beihang-UOW Joint Research Centre and School of Physics Beihang UniversityBeijing 100191China Songshan Lake Materials Laboratory Dongguan 523803China

Two-dimensional(2D)heterostructures based on layered transition metal dichalcogenides(TMDs)have attracted increasing attention for the applications of the nextgeneration high-performance integrated electronics and *** various TMD heterostructures have been successfully fabricated,epitaxial growth of such atomically thin metal-semiconductor heterostructures with a clean and sharp interface is still *** addition,photodetectors based on such heterostructures have seldom been ***,we report the synthesis of high-quality vertical NbS2/MoS2metallic-semiconductor *** using NbS2as the contact electrodes,the field-effect mobility and current on-off ratio of MoS2can be improved at least 6-fold and two orders of magnitude compared with the conventional Ti/Au contact,*** using NbS2as contact,the photodetector performance of MoS2is much improved with higher responsivity and less response *** facile synthesis of atomically thin metal-semiconductor heterostructures by a simple chemical vapor deposition strategy and its effectiveness as ultrathin 2D metal contact open the door for the future application of electronics and optoelectronics.

关键词： metal-semiconductor heterostructures contact engineering field-effect transistor photodetector

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Correction:Measurements of ^(27)Al(γ,n)reaction using quasi-monoenergeticγbeams from 13.2 to 21.7 MeV at SLEGS

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Nuclear science and Techniques 2025年第6期36卷 240-240页

作者： Pu Jiao Zi-Rui Hao Qian-Kun Sun Long-Xiang Liu Hang-Hua Xu Yue Zhang Meng-Die Zhou Zhi-Cai Li Wen Luo Yu-Xuan Yang Sheng Jin Kai-Jie Chen Shan Ye Zhen-Wei Wang Yu-Ting Wang Hui-Ling Wei Yao Fu Kun Yu Hong-Wei Wang Gong-Tao Fan Chun-Wang Ma School of Physics Centre for Theoretical PhysicsHenan Normal UniversityXinxiang 453007China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201204China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Science Beijing 100080China College of Physics Centre for Theoretical PhysicsHenan Normal UniversityXinxiang 453007China School of Nuclear Science and Technology University of South ChinaHengyang 421001China School of Physics Zhengzhou UniversityZhengzhou 450001China ShanghaiTech University Shanghai 201210China China Institute of Atomic Energy Beijing 102413China School of Physics Henan Normal UniversityXinxiang 453007China Henan Key Laboratory of Infrared Material&Spectrum Measures and Applications Henan Normal UniversityXinxiang 453007China Institute of Nuclear Science and Technology Henan Academy of SciencesZhengzhou 450046China

Correction to:Nuclear science and Techniques(2025)36:66 https://***/10.1007/*** this article,the author’s name Hui-Ling Wei was incorrectly written as Hui-Ling *** original article has been corrected.

关键词： author name correction quasi monoenergetic beams correction nuclear science techniques Al n reaction

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Disorder and magnetic field induced Bose-metal state in two-dimensional Tax(SiO2)1−x granular films

arXiv

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arXiv 2020年

作者： He, Zhi-Hao Tu, Hua-Yao Gao, Kuang-Hong Yu, Guo-Lin Li, Zhi-Qing Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology Department of Physics Tianjin University Tianjin300354 China National Laboratory for Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Science Shanghai200083 China

The origin of the intermediate anomalous metallic state in two-dimensional superconductor materials remains enigmatic. In the present paper, we observe such a state in a series of ∼9.0 nm thick Tax(SiO2)1−x (x being the volume fraction of Ta) nanogranular films. At zero field, the x & 0.75 films undergo a Berezinskii-Kosterlitz-Thouless transition as transform from normal to superconducing states upon cooling. For the x . 0.71 films, the resistance increases with decreasing temperature from 2 K down to 40 mK. A normal state to anomalous metallic state transition is observed in the x 0.73 film, i.e., near the transition temperature, the resistance of the film decreases sharply upon cooling as if the system would cross over to superconducting state, but then saturates to a value far less than that in normal state. When a small magnetic field perpendicular to the film plane is applied, the anomalous metallic state occurs in the x & 0.75 films. It is found that both disorder and magnetic field can induce the transition from superconductor to anomalous metal and their influences on the transition are similar. For the the magnetic field induced case, we find the sheet resistance R(T, H) (T and H being the temperature and the magnitude of magnetic field) data near the crossover from the anomalous metal to superconductor and in the vicinity of the anomalous metal to insulator transition, respectively, obey unique scaling laws deduced from the Bose-metal model. Our results strongly suggest that the anomalous metallic state in the Tax(SiO2)1−x granular films is bosonic and dynamical gauge field fluctuation resulting from superconducting quantum fluctuations plays a key role in its formation. Copyright © 2020, The Authors. All rights reserved.

关键词： Silica

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Hierarchy features attention network for tiny ship detection from SDGSAT-1 thermal infrared images

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Remote Sensing of Environment 2025年 328卷

作者： Yan, Zeyi Shi, Xuming Gu, Lingjia Hu, Zhuoyue Chen, Fansheng He, Zhiping Hu, Weida Wang, Fang College of Electronic Science and Engineering Jilin University Changchun130012 China Shanghai Research Institute for Intelligent Autonomous Systems Tongji University Shanghai200092 China State Key Laboratory of Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences 500 Yu Tian Road Shanghai200083 China Key Laboratory of Space·Active·Opto-electronics Technology Shanghai Institute of Technical Physics Chinese Academy of·Sciences Shanghai200083 China University of Chinese Academy of Sciences Beijing100049 China

Accurate and reliable ship target detection is of great significance for the sustainable development goals of ocean management. With the development of remote sensing technology, satellite imagery provides strong support for space-based tiny ship detection. However, remote sensing images have complex backgrounds, and it is challenging to separate and locate different numbers of small ship targets in different scenarios. The thermal infrared bands can capture the temperature differences between ships and the surrounding marine environment, enabling effective detection. Therefore, this study used the Sustainable Development Goals science Satellite 1 (SDGSAT-1) thermal infrared spectrometer (TIS) to develop a three-channel infrared small target detection (IRSTD) dataset with pixel-level annotations for all bands (SDG-IRSTD). The dataset contains 329 images from the SDGSAT-1 TIS and 3492 targets. Then a hierarchy features attention network (HFA-Net) for space-based tiny ship detection was proposed. The network generates enhanced feature maps of different scales through the multi-level detail enhancement module (MLDEM), employs a multi-level large kernel attention module (MLLKAM) which integrates the multi-scale mechanism with large kernel attention (LKA) to effectively model long-range dependencies on feature maps with different scales, and finally achieves feature fusion and interaction of different scales through the multi-level feature fusion module (MLFFM). In addition, the HFA-Net model improved intersection over union (IoU) and probability of detection (Pd) by 2.35 % and 3.97 %, respectively, and reduced false alarm rate (Fa) by 3.29 × 10−6, outperforming the state-of-the-art (SOTA) IRSTD methods. It can achieve target localization while obtaining the overall shape of the ship, providing important support for sustainable marine safety. © 2025 Elsevier Inc.

关键词： Thermography (imaging)

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HDTCNet: A hybrid-dimensional convolutional network for multivariate time series classification

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Pattern Recognition 2025年 168卷

作者： Gu, Yongli Yan, Xiang Qin, Hanlin Akhtar, Naveed Yuan, Shuai Fu, Honghao Yang, Shuowen Mian, Ajmal School of Optoelectronic Engineering Xidian University Xi'an710071 China Xi'an Key Laboratory of Infrared Technology and System Xi'an710071 China School of Computing and Information Systems The University of Melbourne ParkvilleVIC3052 Australia School of Electrical and Electronic Engineering Nanyang Technological University Singapore639798 Singapore School of Computer Science and Software Engineering The University of Western Australia CrawleyWA6009 Australia

Currently, transformer-based models dominate time series classification due to their ability to capture global data dependencies. However, their large memory footprint and high computational demands make them less desirable for long multivariate time series modeling. At the same time, convolution-based models promise a desirable performance versus efficiency trade-off for the task. Nevertheless, the popularity of transformer models has impeded exploration of sophisticated convolution-based modeling for time series classification. In this work, we introduce a novel convolution-based model, called HDTCNet, that alternates between 1D and 2D convolutional modes to capture temporal pattern correlations between intra- and inter-sensor variations. We develop a Wavelet Time Convolution block to expand the effective receptive field of the underlying neural model with a small convolutional kernel that embeds a set of 1D convolution operators between a cascade of wavelet decomposition and reconstruction of the input time series. To efficiently represent the local features of multivariate time series, we devise a hierarchical difference convolution network to capture intra- and inter-sensor gradient variations. To refine the feature representation of sensor-level time series and achieve multi-view self-enhancement, we design a self-enhancing module. These innovations enable HDTCNet to achieve superior performance while maintaining efficiency as a purely convolutional model. Experimental results demonstrate that HDTCNet achieves 2.1% accuracy and 1% F1-score performance improvements over state-of-the-art methods on 25 UEA classification datasets and 3 anomaly detection datasets, respectively, while reducing parameter counts by two orders of magnitude. Our code will be available at https://***/Guuuli/HDTCNet. © 2025

关键词： Wavelet decomposition

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A Chiral Reduced-Dimension Perovskite for an Efficient Flexible Circularly Polarized Light Photodetector

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Advanced Materials 2020年第16期59卷 6504-6512页

作者： Wang, Lin Xue, Yongxiang Cui, Minghuan Huang, Yanmin Xu, Hongyu Qin, Chaochao Yang, Jien Dai, Haitao Yuan, Mingjian College of Chemistry Nankai University Tianjin300071 China Nankai University Tianjin300071 China Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology School of Science Tianjin University Tianjin300072 China Henan Key Laboratory of Infrared Materials & Spectrum Measures and Applications School of Physics Henan Normal University Xinxiang453007 China

Chiral quasi-2D perovskite single crystals (SCs) were investigated for their circular polarized light (CPL) detecting capability. Quasi-2D chiral perovskites, [(R)-ß- MPA]2MAPb2I7 ((R)-ß-MPA=(R)-(+)-ß-methylphenethylamine, MA=methylammonium), have intrinsic chirality and the capability to distinguish different polarization states of CPL photons. Corresponding quasi-2D SCs CPL photodetector exhibit excellent detection performance. In particular, our device responsivity is almost one order of magnitude higher than the reported 2D perovskite CPL detectors to date. The crystallization dynamics of the film were modulated to facilitate its carrier transport. Parallel oriented perovskite films with a homogeneous energy landscape is crucial to maximize the carrier collection efficiency. The photodetector also exhibits superior mechanical flexibility and durability, representing a promising candidate for sensitive and robust CPL photodetectors. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

关键词： Photodetectors

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Ultralow threshold, single-mode InGaAs/GaAs multi-quantum disk nanowire lasers

arXiv

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arXiv 2021年

作者： Zhang, Xutao Yi, Ruixuan Gagrani, Nikita Li, Ziyuan Zhang, Fanlu Gan, Xuetao Yao, Xiaomei Yuan, Xiaoming Wang, Naiyin Zhao, Jianlin Chen, Pingping Lu, Wei Fu, Lan Tan, Hark Hoe Jagadish, Chennupati Key Laboratory of Light Field Manipulation and Information Acquisition Ministry of Industry and Information Technology Shaanxi Key Laboratory of Optical Information Technology School of Physical Science and Technology Northwestern Polytechnical University Xi'an710129 China Department of Electronic Materials Engineering Research School of Physics Australian National University CanberraACT2601 Australia State Key Laboratory for Infrared Physics Shanghai Institute of Technical Physics Chinese Academy of Sciences 500 Yutian Road Shanghai200083 China University of Chinese Academy of Sciences 19 Yuquan Road Beijing100049 China Hunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University 932 South Lushan Road Hunan Changsha410083 China School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road Pudong District Shanghai201210 China ARC Centre of Excellence for Transformative Meta-Optical Systems Research School of Physics Australian National University CanberraACT2601 Australia

We present single-mode nanowire (NW) lasers with ultralow threshold in the near-infrared spectral range. To ensure the single-mode operation, the NW diameter and length are reduced specifically to minimize the longitudinal and transverse modes of the NW cavity. Increased optical losses and reduced gain volume by the dimension reduction are compensated by excellent NW morphology and InGaAs/GaAs multi-quantum disks. At 5 K, a threshold low as 1.6 μJ/cm2 per pulse is achieved with a resulting quality factor exceeding 6400. By further passivating the NW with an AlGaAs shell to suppress surface non-radiative recombination, single-mode lasing operation is obtained with a threshold of only 48 μJ/cm2 per pulse at room temperature with a high characteristic temperature of 223 K and power output of ~ 0.9 μW. These single-mode, ultralow threshold, high power output NW lasers are promising for the development of near-infrared nanoscale coherent light sources for integrated photonic circuits, sensing, and spectroscopy. © 2021, CC BY.

关键词： Nanowires

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Fabrication of Tb/Eu co-doped borosilicate glasses for white-light LED and broadband photodetection

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Journal of Rare Earths 2025年

作者： Jia, Hong Wang, Yingying Long, Yi Niu, Xuying Zhou, Hui Yang, Jie Yuan, Yuquan Hu, Yanfei Xu, Xiaoyun Liu, Xiaofeng Peng, Feng Fang, Zaijin College of Physics and Electronic Information & Key Laboratory of Electromagnetic Transformation and Detection of Henan Province Luoyang Normal University Luoyang471934 China Henan Academy of Sciences Institute of Applied Physics Co. Ltd. Zhengzhou450000 China Research Center for Novel Solar-Blind Ultraviolet and Infrared Photoelectronic Detectors & Longmen Laboratory of Luoyang Luoyang471000 China School of Physics and Electronic Engineering Sichuan University of Science & Engineering Zigong 643000 China Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications Institute of Photonics Technology Jinan University Guangzhou511443 China Department of Applied Physics College of Mathematics and Physics Chengdu University of Technology Chengdu610059 China Guangzhou City University of Technology Guangzhou510800 China School of Materials Science and Engineering Zhejiang University Hangzhou310027 China

We successfully prepared a series of rare-earth doped borosilicate glasses using the melt-quenching method, and carefully investigated the luminescent properties and the spectral modulation of Tb/Eu-codoped borosilicate glasses under UV (200–400 nm) excitation. The results show that the prepared samples have the characteristics of broadband response, excellent transparency and tunable luminescence. By adjusting the excitation wavelength, the emissions of Tb3+, Eu2+ and Eu3+ ions are observed, which exhibit yellow-green, blue, red color and multi-color even white emissions, respectively. Moreover, the energy transfer between Tb3+ and Eu3+ ions in the codoped glasses is confirmed. Tb3+ absorbs a large number of solar-blind light, transfers to Eu3+ and results in intense visible emission in a wide waveband range. This makes the Tb/Eu co-doped glass a desirable candidate for solar-blind light detections. The photodetection system was built and shows a strong and stable response to the UV light of 210–400 nm. Due to broad detection range, high sensitivity and stability, our results offer strong implications for the development of photodetection device for diverse applications. © 2025

关键词： Borosilicate glass

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An improvement method of a lossless compression scheme for the datacube from Geostationary Interferometric infrared Sounder (GIIRS) and its FPGA implementation

An improvement method of a lossless compression scheme for t...

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IEEE Joint International Information technology and Artificial Intelligence Conference (ITAIC)

作者： Minzhu Yang Raúl Guerra Hernández Changpei Han José Francisco López Feliciano Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province College of Information Engineering China Jiliang University Hangzhou China Key Laboratory of Infrared System Detection and Imaging Technology Chinese Academy of Science Shanghai China Instituto Universitario de Microelectrónica Aplicada Universidad de Las Palmas de Gran Ganaria Las Palmas Spain

ISBN: (数字)9781728152448

ISBN: (纸本)9781728152455

This paper briefly described an improved method for the original proposed scheme based on Vector Quantization and Linear Prediction to further enhance the compression ratio while reduce the time cost. Given the fact that the interferograms belong to the same datacube are similar to each other, there are two obvious modifications in this paper: predict only once to get the general predicted coefficients for the same datacube; along with treat datacube rather than sequence as the encoded unit. The time consumption spent by Linear Prediction part will shrink about 35.55% by predicting just once. Moreover, the change of the encoded object makes the final compression ratio get a further rise range from 2.62% to 3.711%.

关键词： Vector quantization Conferences Information technology Artificial intelligence Field programmable gate arrays

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