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IEEE Photonics Journal 2025年第3期17卷

作者： Yuxin Chen Yutong Qi Bao Zhu Xingchen Zhou Xuefei Xiao Zheyuan Gu Jun Qian Chuanyang He Min Lai Yan Ma Bo Liu State Key Laboratory Cultivation Base of Atmospheric Optoelectronic Detection and Information Fusion Jiangsu International Joint Laboratory for Meteorological Photonics and Optoelectronic Detection and Jiangsu Engineering Research Center for Intelligent Optoelectronic Sensing Technology of Atmosphere Nanjing University of Information Science & Technology Nanjing China School of Physics and Optoelectronic Engineering Nanjing University of Information Science & Technology Nanjing China NUIST Reading Academy Nanjing University of Information Science & Technology Nanjing China

In this study, we demonstrate fabrication of an evanescent wave fiber optic humidity sensor based on PEG-PMMA microsphere film as moisture-sensitive material. A three dimensional stacking structure of PEG-PMMA microspheres is formed by dip coating method on fiber core. A simultaneous fast response and recovery is optimized with equilibrium time of 13 s and 8 s between 30% RH and 80% RH, respectively. The sensor possessed a maximum sensitivity of 157.143 lux/% RH in the range of 70–80% RH and a good linear relationship between the logarithm of output optical intensity and relative humidity with a correlation coefficient of 0.998. Moreover, the sensor exhibits low hysteresis, excellent repeatability, short-term and long-term stability and electromagnetic immunity. Modulation of intensity is primarily attributed to scattering of evanescent wave on polymer microspheres in humidity sensing.

关键词： Humidity Optical fiber sensors Optical surface waves Scattering Surface treatment Absorption Refractive index Claddings Optical films Optical fiber dispersion

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Synthesis of Abiotic Supramolecular Polymers Inside Living Cells via Organocatalysis-Mediated Self-Assembly

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Angewandte Chemie 2025年

作者： Hucheng Wang Ya-Ting Zheng Jiahao Zhang Yuliang Gao Jingjing Chen Peiwen Cai Junyou Wang Jan H. van Esch Xuhong Guo Hui Li Yiming Wang State Key Laboratory of Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P.R. China School of Systems Science and Institute of Nonequilibrium Systems Beijing Normal University Beijing 100875 P.R. China Department of Chemical Engineering Delft University of Technology Delft 2629 HZ The Netherlands Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education Beijing Normal University Beijing 100875 P.R. China Shanghai Key Laboratory for Intelligent Sensing and Detection Technology East China University of Science and Technology Shanghai 200237 P.R. China

Cells execute mesmerizing functions using supramolecular polymers (SPs) formed through the self-assembly of biological precursors. Integration of the vast array of synthetic SPs with living cells would offer a powerful way to remold cellular functions and bridge the gap between synthetic materials and the biological realm, yet remains a challenge because of the lack of robust abiotic SP systems that can be triggered to self-assemble inside cells. Here, we report how fully abiotic SPs can be synthesized inside living cells via an organocatalysis-responsive self-assembly strategy, and how the in situ-generated SPs are capable of interfering and can interfere with cellular functions. The incorporation of a nucleophilic organocatalyst ( CAT ) into living cells accelerates the intracellular conversion of hydrazide ( H ) and aldehyde-derived precursors ( A ) to hydrazone-based monomers ( HA 3 ) that locally self-assemble into SPs. Interestingly, the in situ-generated SPs possess ignorable effects on cell viability and proliferation but remarkably hinder cell migration. Furthermore, the presence of SPs is found to retard intracellular diffusion and alter the organization of the actin cytoskeleton, both of which are suggested to be responsible for the hindered cellular migration. In considering the vastly wide range of synthetic SPs, tremendous non-natural cellular functionalities can be obtained by in situ-synthesizing SPs.

关键词： Gelation Intracellular self-assembly Local catalysis Supramolecular polymers

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Simulation and retrieval for spaceborne aerosol and cloud high spectral resolution lidar of China

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Science China Earth Sciences 2022年第3期65卷 570-583页

作者： Feiyue MAO Xi LUO Jie SONG Zhenxin LIANG Wei GONG Weibiao CHEN School of Remote Sensing and Information Engineering Wuhan UniversityWuhan 430079China State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhan 430079China Electronic Information School Wuhan UniversityWuhan 430079China Key Laboratory of Space Laser Communication and Detection Technology Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China

Clouds and aerosols can significantly affect global climate change and the atmospheric environment,and observing them three-dimensionally with high spatial and temporal resolutions is a long-standing *** lidars are effective instruments for the vertical detection of clouds and aerosols *** Mie scattering lidars were successfully launched and widely used,such as the Cloud-Aerosol Lidar with Orthogonal Polarization(CALIOP)and Geoscience Laser Altimeter ***,the retrieval of Mie scattering lidar data is an ill-posed problem that introduces a large *** spaceborne Aerosol and Cloud High Spectral Resolution Lidar(ACHSRL)of China is currently under development and scheduled for launch in the near *** ACHSRL attracted extensive attention,because it can separate Mie and Rayleigh scattering signals and avoid ill-posed *** this study,we conducted ACHSRL signal simulation and retrieval to explore the potential of the ***,we proposed a simplified scheme for retrieving optical parameters,which reduced the number of equations and intermediate variables of the traditional method and avoided false extrema in the backscatter coefficient ***,the experiments showed that the backscatter coefficient retrieval was overestimated owing to the influence of the Poisson noise but can be ***,we examined the feasibility of the strategy of“first retrieving the lidar ratio then retrieving the extinction coefficient”to improve the extinction coefficient *** found that the retrieval error in the simulated cases can be reduced to less than 1%of the original retrieval ***,we discussed the influence of the uncertainty of the iodine filter transmittance on the retrieval of the optical parameters and found that the average relative error was less than 1‰.Finally,we conducted simulation and retrieval based on the atmospheric parameters measured by the *** showed that

关键词： Atmospheric environment Laser detection Satellite Signal simulation Extinction coefficient Backscatter coefficient

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A comprehensive review on developments of synthetic dimensions

arXiv

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arXiv 2025年

作者： Yu, Danying Song, Wange Wang, Luojia Srikanth, Rohith Sridhar, Sashank Kaushik Chen, Tao Huang, Chenxi Li, Guangzhen Qiao, Xin Wu, Xiaoxiong Dong, Zhaohui He, Yanyan Xiao, Meng Chen, Xianfeng Dutt, Avik Gadway, Bryce Yuan, Luqi State Key Laboratory of Advanced Optical Communication Systems and Networks School of Physics and Astronomy Shanghai Jiao Tong University Shanghai200240 China National Laboratory of Solid State Microstructures Key Laboratory of Intelligent Optical Sensing and Manipulation Jiangsu Key Laboratory of Artificial Functional Materials College of Engineering and Applied Sciences Nanjing University Nanjing210093 China New Cornerstone Science Laboratory Department of Physics University of Hong Kong Hong Kong Department of Mechanical Engineering Institute for Physical Science and Technology University of Maryland College ParkMD20742 United States Department of Physics University of Illinois at Urbana-Champaign UrbanaIL61801-3080 United States Department of Physics The Pennsylvania State University University ParkPA16802 United States School of Physics Xi’an Jiao Tong University Xi’an710049 China College of Physics and Electronics Engineering Northwest Normal University Lanzhou730070 China Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education School of Physics and Technology Wuhan University Wuhan430072 China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal University Jinan250358 China at Maryland College ParkMD20742 United States

The concept of synthetic dimensions has emerged as a powerful framework in photonics and atomic physics, enabling the exploration of high-dimensional physics beyond conventional spatial constraints. Originally developed for quantum simulations in high dimensions, synthetic dimensions have since demonstrated advantages in designing novel Hamiltonians and manipulating quantum or optical states for exploring topological physics, and for applications in computing and information processing. Here we provide a comprehensive overview of progress in synthetic dimensions across photonic, atomic, and other physical platforms over the past decade. We showcase different approaches used to construct synthetic dimensions and highlight key physical phenomena enabled by the advantage of such a framework. By offering a unified perspective on developments in this field, we aim to provide insights into how synthetic dimensions can bridge fundamental physics and applied technologies, fostering interdisciplinary engagement in quantum simulation, atomic and photonic engineering, and information processing. © 2025, CC BY.

关键词： Atoms

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Development of fiber-optic triaxial force sensor for guidewire tip

Development of fiber-optic triaxial force sensor for guidewi...

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2024 International Conference on Optoelectronic Information and Optical Engineering, OIOE 2024

作者： Yang, Yuhang Hou, Linsong Meng, Wei Zhang, Hongbo Wei, Heming Yin, Ruixue Shanghai Key Laboratory of Intelligent Sensing and Detection East China University of Science and Technology Shanghai200237 China Key Laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication Shanghai University Shanghai200444 China

ISBN: (数字)9781510680470

ISBN: (纸本)9781510680463

With the advancement of minimally invasive surgery (MIS) and interventional therapy robots, the lack of direct perception of the contact force between interventional instruments and human blood vessels and tissues by physicians often leads to surgical complications or suboptimal treatment outcomes. Therefore, the development of miniature force sensors for instrument tips has become a hot research topic. This paper introduces a fiber-optic flexible force sensor based on Fabry-Pérot interference (FPI), which can be integrated into the tip of guidewires used in minimally invasive surgery. The performance of the designed sensor was validated through simulations and experiments, demonstrating its excellent capabilities. The results indicate the potential of this sensor for real-time force monitoring in minimally invasive interventions. © 2024 SPIE.

关键词： Fiber optics

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MEMS micro-mirror laser scanning for detection of metal corrosion

MEMS micro-mirror laser scanning for detection of metal corr...

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2023 International Conference on Optoelectronic Materials and Devices, ICOMD 2023

作者： Shen, Pengchao Zhai, Qingyi Liu, Huiling Yao, Jiannan He, Xuefeng He, Yuanyuan Xie, Quanhua Liu, Yang Peng, Xiaoling Zhong, Nianbing Chongqing Key Laboratory of Optical Fiber Sensor and Photoelectric Detection Chongqing Key Laboratory of modern photoelectric detection technology and instruments Chongqing Engineering Research Center of Intelligent Optical Fiber Sensing Technology Chongqing University of Technology Chongqing400054 China

ISBN: (纸本)9781510674509

To achieve non-contact non-destructive detection of corrosion in metal artifacts, this paper presents a novel metal corrosion detection system employing a pulsed modulation laser source, MEMS scanning micro-mirror, optical lens assembly, photoelectric detector, and FPGA. The detection system's measurement theoretical model is established, and corrosion measurements are conducted on corroded metal samples using the developed system. The research reveals that corrosion products adhering to the surface of metal samples reduce the reflectance of light, leading to a decrease in the light flux reaching the photoelectric detector and a subsequent reduction in the output voltage of the detection system. The corrosion intensity of metal artifacts can be detected by acquiring the output voltage of the detection system. Simultaneously, the corrosion behavior characteristics of metallic specimens can be identified based on the scanning voltage of the detection system. © 2024 SPIE. All rights reserved.

关键词： MEMS

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A Tutorial on Movable Antennas for Wireless Networks

arXiv

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arXiv 2025年

作者： Zhu, Lipeng Ma, Wenyan Mei, Weidong Zeng, Yong Wu, Qingqing Ning, Boyu Xiao, Zhenyu Shao, Xiaodan Zhang, Jun Zhang, Rui Department of Electrical and Computer Engineering National University of Singapore Singapore117583 Singapore Chengdu611731 China National Mobile Communications Research Laboratory Frontiers Science Center for Mobile Information Communication and Security Southeast University Nanjing210096 China Purple Mountain Laboratories Nanjing211111 China Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China School of Electronic and Information Engineering Beihang University Beijing100191 China Department of Electrical and Computer Engineering University of Waterloo WaterlooONN2L 3G1 Canada State Key Laboratory of CNS/ATM MIIT Key Laboratory of Complex-field Intelligent Sensing Beijing Institute of Technology Beijing100081 China School of Science and Engineering Shenzhen Research Institute of Big Data The Chinese University of Hong Kong Guangdong Shenzhen518172 China

Movable antenna (MA) has been recognized as a promising technology to enhance the performance of wireless communication and sensing by enabling antenna movement. Such a significant paradigm shift from conventional fixed antennas (FAs) to MAs offers tremendous new opportunities towards realizing more versatile, adaptive and efficient next-generation wireless networks such as 6G. In this paper, we provide a comprehensive tutorial on the fundamentals and advancements in the area of MA-empowered wireless networks. First, we overview the historical development and contemporary applications of MA technologies. Next, to characterize the continuous variation in wireless channels with respect to antenna position and/or orientation, we present new field-response channel models tailored for MAs, which are applicable to narrowband and wideband systems as well as far-field and near-field propagation conditions. Subsequently, we review the state-of-the-art architectures for implementing MAs and discuss their practical constraints. A general optimization framework is then formulated to fully exploit the spatial degrees of freedom (DoFs) in antenna movement for performance enhancement in wireless systems. In particular, we delve into two major design issues for MA systems. First, we address the intricate antenna movement optimization problem for various communication and/or sensing systems to maximize the performance gains achievable by MAs. Second, we deal with the challenging channel acquisition issue in MA systems for reconstructing the channel mapping between arbitrary antenna positions inside the transmitter and receiver regions. Moreover, we show existing prototypes developed for MA-aided communication/sensing and the experimental results based on them. Finally, the extension of MA design to other wireless systems and its synergy with other emerging wireless technologies are discussed. We also highlight promising research directions in this area to inspire future investigatio

关键词： Antenna arrays

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A Technique for Altering Face Attributes Based on Differential Structure 22

A Technique for Altering Face Attributes Based on Differenti...

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6th International Conference on Big Data and Internet of Things, BDIOT 2022

作者： Li, Yue He, Xiping He, Dan Yuan, Rui Chongqing Key Laboratory of Intelligent Sensing and Blockchain Technology School of Artificial Intelligence Chongqing Technology and Business University Chongqing400067 China Chongqing Key Laboratory of Intelligent Sensing and Blockchain Technology Chongqing Engineering Laboratory for Detection Control and Integrated System Chongqing Technology and Business University Chongqing400067 China

ISBN: (纸本)9781450390361

The task of face attribute editing refers to the implementation of specified attribute editing by integrating encoder-decoder and generative adversarial networks. The majority of current codec architectures carry out attribute editing by providing the generator with both the source face attribute vector and the destination face attribute vector. Nevertheless, using the entire target attribute vector as input more often hurts the editing outcomes, leading to modifications in unnecessary areas and blurring of image features. This paper suggests an attribute difference method that uses the difference between the target attribute and the source attribute vector as the encoder-decoder input to improve the flexible editing ability of attributes, taking into account that a particular editing task is only related to the attribute to be changed. Constrained picture reconstruction quality, detailed information preservation, and effective attribute editing are achieved simultaneously by combining the reconstruction loss, adversarial loss, and attribute classification loss as the algorithm's loss expression. Experiments demonstrate that the suggested approach successfully address the issue of blurring the details in the generated image as well as precisely alter the face attributes. © 2022 ACM.

关键词： Generative adversarial networks

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A novel singularity spectrum distribution of radar sea clutter

A novel singularity spectrum distribution of radar sea clutt...

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IET International Radar Conference 2015

作者： Xiong, Gang Li, Dongying Yu, Wenxian Shanghai Key Laboratory of Intelligent Sensing and Recognition Shanghai Jiao Tong University Shanghai China Ministerial Key Laboratory of JGMT Nanjing University of Science and Technology Nanjing China

ISBN: (纸本)9781849199940

In this paper, detrended fluctuation analysis base multifractal spectrum distribution (DFA-MFSD) method is introduced to analyze the multifractal characteristic of radar sea clutter. We briefly give the algorithm of DFA-MFSD and simulate DFA-MFSD of real radar sea clutter, which indicates firstly that radar sea clutter has the time-varying singularity spectrum characteristic, and secondly the DFA-MFSD outperforms the WTMM-MFSD at the computational cost from a practical point of view.

关键词： Radar

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Photocatalytic synergistic biofilms enhance tetracycline degradation and conversion

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Environmental Science and Ecotechnology 2023年第2期14卷 97-105页

作者： Chuanbao Xiao Jilin Yuan Linyang Li Nianbing Zhong Dengjie Zhong Quanhua Xie Haixing Chang Yunlan Xu Xuefeng He Min Li Intelligent Fiber Sensing Technology of Chongqing Municipal Engineering Research Center of Institutions of Higher Education Chongqing Key Laboratory of Modem Photoelectric Detection Technology and InstrumentChongqing Key Laboratory of Fiber Optic Sensor and PhotodetectorChongqing University of TechnologyChongqing400054China School of Chemistry and Chemical Engineering Chongqing University of TechnologyChongqing400054China

Tetracyclines are refractory pollutants that cause persistent harm to the environment and human ***,it is urgently necessary to develop methods to promote the efficient degradation and conversion of tetracyclines in *** report proposes a photobiocatalytic synergistic system involving the coupling of GeO_(2)/Zn-doped phosphotungstic acid hydrate/TiO_(2)(GeO_(2)/Zn-HPW/TiO_(2))-loaded photocatalytic optical hollow fibers(POHFs)and an algalebacterial *** GeO_(2)/Zn-HPW/TiO_(2) photocatalyst exhibits a broad absorption edge extending to 1000 nm,as well as high-efficiency photoelectric conversion and electron transfer,which allow the GeO_(2)/Zn-HPW/TiO_(2)-coated POHFs to provide high light intensity to promote biofilm *** resulting high photocatalytic activity rapidly and stably reduces the toxicity and increases the biodegradability of tetracycline-containing *** biofilm enriched with Salinarimonas,Coelastrella sp.,and Rhizobium,maintains its activity for the rapid photocatalytic degradation and biotransformation of intermediates to generate the O_(2) required for ***,the synergistic photocatalytic biofilm system developed herein provides an effective and efficient approach for the rapid degradation and conversion of water containing high concentrations of tetracycline.

关键词： Optical hollow fiber GeO_(2)/Zn-doped phosphotungstic acid hydrate/TiO_(2) Algalebacterial biofilm Synergy Tetracycline

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