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A probability theory for filtered ghost imaging

Chinese Physics B 2023年第4期32卷 329-337页

作者：刘忠源孟少英陈希浩 Key Laboratory of Optoelectronic Devices and Detection Technology College of PhysicsLiaoning UniversityShenyang 110036China

Based on probability density functions,we present a theoretical model to explain filtered ghost imaging(FGI)we first proposed and experimentally demonstrated in 2017[***.425290(2017)].An analytic expression for the joint intensity probability density functions of filtered random speckle fields is derived according to their probability ***,the normalized second-order intensity correlation functions are calculated for the three cases of low-pass,bandpass and high-pass filterings to study the resolution and visibility in the FGI *** simulations show that the resolution and visibility predicted by our model agree well with the experimental results,which also explains why FGI can achieve a super-resolution image and better visibility than traditional ghost imaging.

关键词： ltered ghost imaging probability density function super-resolution

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Resolution-enhanced single-pixel imaging using the Hadamard transform matrix

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Chinese Physics B 2023年第12期32卷 652-656页

作者：别书航王晨晖吕瑞兵鲍倩倩付强孟少英陈希浩 Key Laboratory of Optoelectronic Devices and Detection Technology College of PhysicsLiaoning UniversityShenyang 110036China

We propose a single-pixel imaging(SPI)method to achieve a higher-resolution image via the Hadamard transform *** traditional SPI schemes,this new method recovers images by correlating single-pixel signals with synchronized transformed patterns of Hadamard bases that are actually projected onto the digital micromirror *** transform pattern is obtained through the inverse Fourier transform of the pattern acquired by Gaussian filtering of each Hadamard basis in the frequency *** proposed scheme is based on a typical SPI experimental setup and does not add any hardware complexity,enabling the transformation of Hadamard matrices and image reconstruction through data processing ***,this approach could be considered as an alternative option for achieving fast SPI in a diffraction-limited imaging system,without the need for additional hardware.

关键词： single-pixel imaging Gaussian filtering resolution enhancement

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Iterative filtered ghost imaging

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Chinese Physics B 2022年第2期31卷 681-686页

作者： Shao-Ying Meng Mei-Yi Chen Jie Ji Wei-Wei Shi Qiang Fu Qian-Qian Bao Xi-Hao Chen Ling-An Wu Key Laboratory of Optoelectronic Devices and Detection Technology School of PhysicsLiaoning UniversityShenyang 110036China Institute of Physics Chinese Academy of SciencesBeijing 100190China

It is generally believed that,in ghost imaging,there has to be a compromise between resolution and *** we propose and demonstrate an iterative filtered ghost imaging scheme whereby a super-resolution image of a grayscale object is achieved,while at the same time the signal-to-noise ratio(SNR)and visibility are greatly improved,without adding *** dependence of the SNR,visibility,and resolution on the number of iterations is also investigated and ***,with the use of compressed sensing the sampling number can be reduced to less than 1%of the Nyquist limit,while maintaining image quality with a resolution that can exceed the Rayleigh diffraction bound by more than a factor of 10.

关键词： ghost imaging bandpass filtering compressed sensing iteration

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Thickness-Induced Gradient Micro-Wrinkle Pdms/Mxene/Rgo Wearable Strain Sensor with High Sensitivity and Stretchability for Human Motion detection

SSRN

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SSRN 2024年

作者： Guo, Haoxia Chu, Zhenming Fu, Luming Lv, Yongming Liu, Xiaoman Fan, Xiaoxing Zhang, Wei School of Physics Liaoning University Shenyang110036 China Liaoning Key Laboratory of Optoelectronic Functional Devices and Detection Technology Shenyang110036 China Liaoning Key Laboratory of Semiconductor Light Emitting and Photocatalytic Materials Liaoning University Shenyang110036 China School of Public Health China Medical University Shenyang110122 China

Flexible strain sensors have attracted significant research interest in the fields of health detection, human-machine interaction, and electronic skin by virtue of excellent stretchability, flexibility, skin conformability, and outstanding sensing ability. Despite recent advances in this field, it remains challenging to achieve high-performance strain sensors with high sensitivity, wide strain range, and strong stability. To address this, we innovatively fabricated a high-performance polydimethylsiloxane (PDMS)/MXene/reduced graphene oxide (rGO) strain sensor with excellent strain sensing and superhydrophobicity using a tilt-filtration method and pre-stretching technique, featuring the novel gradient micro-wrinkle structure induced by thickness variation. Owing to the synergistic effect between the material and the microstructure, the sensor exhibits high sensitivity (gauge factor (GF) maximum up to 136,124.40), a wide strain range (up to 300%), and good stability (up to 10,500 cycles). This strain sensor can detect a wide range of human body movements, including large-scale movements and subtle stimuli. Additionally, the strain sensor is accompanied by a rough surface structure and low surface energy, endowing it with superhydrophobicity and corrosion resistance, which can be applied in harsh environments. The gradient micro-wrinkle strain sensors have the potential for practical applications in health detection, electronic skin, and human-machine interaction. © 2024, The Authors. All rights reserved.

关键词： Graphene

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Underwater imaging based on time-of-flight cameras 8

Underwater imaging based on time-of-flight cameras

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8th Symposium on Novel Photoelectronic detection technology and Applications

作者： Liang, Hong Yu Cui, Yu Lin Wang, Yan Qiu Zheng, Fu Chen, Xi Hao Sun, Zhi Bin Key Laboratory of Optoelectronic Devices and Detection Technology College of Physics Liaoning University Shenyang110036 China National space science center Chinese academy of sciences Beijing100190 China University of Chinese Academy of Sciences Beijing100190 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

Underwater imaging plays an important role in marine geological exploitation, resource exploitation, ecological research and many other fields. Due to the influence of complex underwater environment, the underwater images have some degradation problems, such as low contrast, high scattering noise and so on. Therefore, the improvement of underwater imaging quality is of great significance in any actual application. In this paper, an imaging experiment for the underwater targets is performed by utilizing a time-of-flight (TOF) camera combining with an underwater physical imaging model and an image enhancement method, where the advantage of the TOF camera directly obtaining the depth map can be full taken to calculate the unknown parameters in the underwater physical imaging model. The results show that the better TOF underwater images can be achieved, which can be verified in the feature point matching. Compared with other imaging systems, the TOF underwater imaging method proposed here has much better characteristics in high anti-jamming capability, high sensitivity, all-weather operation and so on. © 2022 SPIE

关键词： Image enhancement

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Super-resolution filtered ghost imaging with compressed sensing

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Chinese Physics B 2020年第12期29卷 119-124页

作者： Shao-Ying Meng Wei-Wei Shi Jie Ji Jun-Jie Tao Qian Fu Xi-Hao Chen Ling-An Wu Key Laboratory of Optoelectronic Devices and Detection Technology School of PhysicsLiaoning UniversityShenyang 110036China Institute of Physics Chinese Academy of SciencesBeijing 100190China

A filtered ghost imaging(GI)protocol is proposed that enables the Rayleigh diffraction limit to be exceeded in an intensity correlation system;a super-resolution reconstructed image is achieved by low-pass filtering of the measured *** a lensless GI experiment performed with spatial bandpass filtering,the spatial resolution can exceed the Rayleigh diffraction bound by more than a factor of *** resolution depends on the bandwidth of the filter,and the relationship between the two is investigated and *** combination with compressed sensing programming,not only high resolution can be maintained but also image quality can be improved,while a much lower sampling number is sufficient.

关键词： ghost imaging bandpass filtering compressed sensing super resolution

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Physics-driven generative adversarial networks empower single-pixel infrared hyperspectral imaging

arXiv

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arXiv 2023年

作者： Wang, Dong-Yin Bie, Shu-Hang Chen, Xi-Hao Yu, Wen-Kai Key Laboratory of Optoelectronic Devices and Detection Technology School of Physics Liaoning University Shenyang110036 China Center for Quantum Technology Research Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement of Ministry of Education School of Physics Beijing Institute of Technology Beijing100081 China

A physics-driven generative adversarial network (GAN) was established here for single-pixel hyperspectral imaging (HSI) in the infrared spectrum, to eliminate the extensive data training work required by traditional data-driven model. Within the GAN framework, the physical process of single-pixel imaging (SPI) was integrated into the generator, and the actual and estimated one-dimensional (1D) bucket signals were employed as constraints in the objective function to update the network’s parameters and optimize the generator with the assistance of the discriminator. In comparison to single-pixel infrared HSI methods based on compressed sensing and physics-driven convolution neural networks, our physics-driven GAN-based single-pixel infrared HSI can achieve higher imaging performance but with fewer measurements. We believe that this physics-driven GAN will promote practical applications of computational imaging, especially various SPI-based techniques. Copyright © 2023, The Authors. All rights reserved.

关键词： Hyperspectral imaging

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Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Xue-Qian Wang Feng-Qi Zhang Xiao-Ya Cui Bing-Bing Fan Jia-Ming Guo Zhi-Min Guo Rui Huang Wen Huang Xu-Bo Li Meng-Ru Li Yan Ma Zhi-Hua Shen Yong-Gang Sun De-Zhuang Wang Fei-Yang Wang Li-Qiang Wang Nan Wang Tian-Li Wang Wei Wang Xiao-Yang Wang Yi-Han Wang Fu-Jie Yu Yu-Zhen Yin Ling-Kun Zhang Yi Zhang Jian-Yang Zhang Qi Zhao Yu-Ping Zhao Xin-Dong Zhu Yasir Sohail Ya-Nan Chen Tao Feng Qi-Long Gao Hai-Yan He Yong-Jiang Huang Zeng-Bao Jiao Hua Ji Yao Jiang Qiang Li Xiao-Ming Li Wei-Bing Liao Huai-Jun Lin Hui Liu Qi Liu Qing-Feng Liu Wei-Di Liu Xiong-Jun Liu Yang Lu Yi-Ping Lu Wen Ma Xue-Fei Miao Jie Pan Qing Wang Hong-Hui Wu Yuan Wu Tao Yang Wei-Ming Yang Qian Yu Jin-Yu Zhang Zhi-Gang Chen Liang Mao Yang Ren Bao-Long Shen Xun-Li Wang Zhe Jia He Zhu Zhen-Duo Wu Si Lan School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and EngineeringSoutheast UniversityNanjing 211189China Department of Physics City University of Hong KongHongKong 999077China School of Materials Science and Engineering Tianjin UniversityTianjin 300072China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Department of Mechanical Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong Kong 100872China Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Solidification Control and Digital Preparation Technology(Liaoning Province) School of Materials Science and EngineeringDalian University of TechnologyDalian 116024China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhou 221116China School of Physical Sciences Great Bay UniversityDongguan 523000China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Beijing Advanced Innovation Center for Materials Genome Engineering Research Institute for Carbon NeutralityUniversity of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering The University of Hong KongHong Kong 999077China School of Computing Macquarie UniversitySydney 2113Australia Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China State Key Laborato

Owing to their exceptional properties,high-entropy alloys(HEAs)and high-entropy materials have emerged as promising research areas and shown diverse ***,the recent advances in the field are comprehensively reviewed,organized into five *** first section introduces the background of HEAs,covering their definition,significance,application prospects,basic properties,design principles,and *** subsequent section focuses on cutting-edge high-entropy structural materials,highlighting developments such as nanostructured alloys,grain boundary engineering,eutectic systems,cryogenic alloys,thin films,micro-nano-lattice structures,additive manufacturing,high entropy metallic glasses,nano-precipitate strengthened alloys,composition modulation,alloy fibers,and refractory *** the following section,the emphasis shifts to functional materials,exploring HEAs as catalysts,magneto-caloric materials,corrosion-resistant alloys,radiation-resistant alloys,hydrogen storage systems,and materials for ***,the review encompasses functional high-entropy materials outside the realm of alloys,including thermoelectric,quantum dots,nanooxide catalysts,energy storage materials,negative thermal expansion ceramics,and high-entropy wave absorption *** paper concludes with an outlook,discussing future directions and potential growth areas in the *** this comprehensive review,researchers,engineers,and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： High entropy alloys Cutting-edge structural materials Cutting-edgefunctional materials

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Targeting stability: Recent progress and perspectives on both anode and cathode interface of halide solid electrolytes

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Journal of Energy Chemistry 2025年 109卷 497-517页

作者： Nan Zhang Xing-Qi Chen Xiaoting Lin Peng-Fei Wang Zong-Lin Liu Jie Shu Ping He Ting-Feng Yi School of Materials Science and Engineering Northeastern University Shenyang Liaoning 110819 PR China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province School of Resources and Materials Northeastern University at Qinhuangdao Qinhuangdao Hebei 066004 PR China Department of Mechanical and Materials Engineering University of Western Ontario 1151 Richmond St London Ontario N6A 3K7 Canada Faculty of Materials Science and Chemical Engineering and Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province Ningbo University Ningbo Zhejiang 315211 PR China Center of Energy Storage Materials & Technology College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing Jiangsu 210093 PR China

Halide solid-state electrolytes (SSEs) have become a new research focus for all-solid-state batteries because of their significant safety advantages, high ionic conductivity, high-voltage stability, and good ductility. Nonetheless, stability issues are a key barrier to their practical application. In past reports, the analysis of halide electrolyte stability and its enhancement methods lacked relevance, which limited the design and optimization of halide solid electrolytes. This review focus on stability issues from a chemical, electrochemical, and interfacial point of view, with particular emphasis on the interaction of halide SSEs with anode and cathode interfaces. By focusing on innovative strategies to address the stability issue, this paper aims to further deepen the understanding and development of halide all-solid-state batteries by proposing to focus research efforts on improving their stability in order to address their inherent challenges and match higher voltage cathodes, paving the way for their wider application in the next generation of energy storage technologies.

关键词： Chemical stability Electrochemical stability Halide solid electrolytes Interface stability Ion transport mechanism

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二维材料最新研究进展

引用

物理化学学报 2021年第12期37卷 1-151页

作者：常诚陈伟陈也陈永华陈雨丁峰樊春海范红金范战西龚成宫勇吉何其远洪勋胡晟胡伟达黄维黄元季威李德慧李连忠李强林立凌崇益刘鸣华刘楠刘庄 Kian Ping Loh 马建民缪峰彭海琳邵明飞宋礼苏邵孙硕谭超良唐智勇王定胜王欢王金兰王欣王欣然 Andrew T.S.Wee 魏钟鸣吴宇恩吴忠帅熊杰熊启华徐伟高尹鹏曾海波曾志远翟天佑张晗张辉张其春张铁锐张翔赵立东赵美廷赵伟杰赵运宣周凯歌周兴周喻朱宏伟张华刘忠范 Institute of Science and Technology Austria Am Campus 13400 KlosterneuburgAustria Department of Chemistry National University of Singapore3 Science Drive 3117543Singapore Department of Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong KongChina Key Laboratory of Flexible Electronics and Institute of Advanced Materials Nanjing Tech UniversityNanjing 211816China School of Life Sciences Shanghai UniversityShanghai 200444China Centre for Multidimensional Carbon Materials Institute for Basic ScienceUlsan 44919Korea School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore Department of Chemistry City University of Hong KongKowloonHong KongChina Department of Electrical and Computer Engineering and Quantum Technology Center University of MarylandCollege ParkMaryland 20742USA School of Materials Science and Engineering Beihang UniversityBeijing 100191China Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina Center of Advanced Nanocatalysis(CAN) Hefei National Laboratory for Physical Sciences at the MicroscaleDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China College of Chemistry and Chemical Engineering State Key Laboratory of Physical Chemistry of Solid SurfacesCollaborative Innovation Center of Chemistry for Energy Materials(iChEM)Xiamen UniversityXiamen361005Fujian ProvinceChina State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing100081China Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-Nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China School of Optical and Electronic Information Wuhan National Laboratory

Research on two-dimensional(2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications. In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief backgroundintroduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials(PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

关键词： Two-dimensional materials Transition metal dichalcogenides Phase engineering of nanomaterials Electronics optoelectronics Catalysis Energy storage and conversion

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