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Sensitivity analysis of light force accelerometer based on optical trapping Mie microsphere

Optoelectronics Letters 2014年第1期10卷 77-80页

作者：冯丽爽焦洪臣姚保寅 Key Laboratory of Micro-nano Measurement-Manipulation and Physics Ministry of EducationFundamental Science on Novel Inertial Instrument & Navigation System Technology LaboratoryBeijing University of Aeronautics and Astronautics

For achieving the greatest sensitivity,numerical simulation is proposed to optimize the parameters of light force accelerometer(LFA).Firstly,the basic principle of the LFA is analyzed,and the mathematical model is established to describe the axial and radial optical trapping forces on microspheres in the fundamental mode Gaussian laser ***,the axial and radial optical trapping forces applied on Mie spheres are simulated to obtain the optimal parameters of open-loop *** show that the sensitivity can reach 103μm/***,the LFA system is proposed based on the closed-loop scheme with dual *** can provide reference for the design and fabrication of LFA in future.

关键词：敏感度分析加速度计捕获光学数值模拟高斯激光束数学模型最优参数

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Investigation of the synthesis and thermal insulation properties of K₂Ti₆O₁₃ whisker-reinforced SiO₂ micro powder composite coating fabrics

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Energy 2025年 328卷

作者： Man, Yi Ge, Chang Wang, Yao He, Yongqing Yang, Wei Qi, Yumin Wang, Bohong Varbanov, Petar Sabev Wang, Jin Nanjing Vocational University of Industry Technology Jiangsu Nanjing 210023 China School of Materials Science and Engineering Hebei University of Technology Tianjin 300401 China Hebei Key Laboratory of New Functional Materials School of Material Science and Engineering Hebei University of Technology Tianjin 300401 China School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 China Chongqing Key Laboratory of Micro-Nano System and Intelligent Transduction National Research Base of Intelligent Manufacturing Service Chongqing Technology and Business University Chongqing 400067 China National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology/Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control Zhejiang Ocean University No.1 Haida South Road Zhoushan 316022 China Széchenyi István University Egyetem tér 1 Győr 9026 Hungary

Developing functional textiles with thermal insulation and hydrophobic properties is of significant interest. This study successfully synthesizes K2Ti6O13 (potassium titanate, KTO) whiskers via the hydrothermal method... 详细信息

Developing functional textiles with thermal insulation and hydrophobic properties is of significant interest. This study successfully synthesizes K₂Ti₆O₁₃ (potassium titanate, KTO) whiskers via the hydrothermal method and prepares KTO composite silica polyester fabric (KSP) through impregnation technology, exhibiting excellent thermal insulation and hydrophobic qualities. X-ray diffraction (XRD) analysis verifies the high purity and excellent crystallinity of KTO whiskers and SiO₂ micro-powder. Scanning electron microscopy (SEM) images reveal that the KTO whiskers retain their original morphology and exhibit uniform size distribution, with an average length of around 1 μm and an aspect ratio of 40. Transmission electron microscopy (TEM) images further validate the planar growth properties of the whiskers. Raman spectroscopy research elucidates the vibrational modes of various chemical bonds in the KTO whiskers. The ultraviolet–visible–near-infrared spectrophotometer test results demonstrate that the KSP fabric reflects 43.5 % more light than standard polyester fabric and substantially lowers the temperature in the covered chamber under simulated sunlight exposure, achieving a maximum reduction of 7.4 °C. The KSP fabric has exceptional hydrophobic properties, completing a contact angle of 153.2° and maintaining reflectance stability, with a mere 5.92 % reduction after 20 days of outside exposure. This work offers substantial reference value for the advancement of practical textiles. © 2025

关键词： Composite coating fabric Hydrophobic property K2Ti6O13 whisker SiO2 micro-powder Thermal insulation

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Electrocaloric Effect of P(VDF-TrFE)/SrTiO_3 Bilayer Thin Films

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Communications in Theoretical Physics 2013年第1期59卷 117-120页

作者：邱建华丁建宁袁宁一王秀琴 Center for Low-Dimensional Materials Micro-Nano Devices and SystemChangzhou University School of Material Science and Engineering Jiangsu University Jiangsu Key Laboratory for Solar Cell Materials and Technology

A phenomenological thermodynamic theory is applied to investigate the effect of misfit strgin and electric field on the electrocaloric effect of P（VDF-TrFN）/SrTiO3 bilayer thin films. Theoretical results indicate that the low electric field results in the decrease of the average polarization with the increase of the relative thickness of SrTi03 layer, and the high electric field has an opposite effect on it. Moreover, the electroealoric effect strongly depends on the electric field. The low electric field and the small field change can lead to a maximum of the electrocaloric effect, meanwhile the high electric field or the large field change results in the opposite trend.

关键词： bilayer thin film polymer electrocaloric effect

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MOS-based model of four-transistor CMOS image sensor pixels for photoelectric simulation

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Chinese Physics B 2022年第5期31卷 725-732页

作者： Bing Zhang Congzhen Hu Youze Xin Yaoxin Li Zhuoqi Guo Zhongming Xue Li Dong Shanzhe Yu Xiaofei Wang Shuyu Lei Li Geng School of Microelectronics Xi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Micro-nano Electronics and System Integration of Xi’an City Xi’an 710049China National Key Laboratory of Science and Technology on Micro/Nano Fabrication Peking UniversityBeijing 100871China ABAX Sensing Inc. Ningbo 315500China

By using the MOS-based model established in this paper, the physical process of photoelectron generation, transfer,and storage in the four-transistor active pixel sensor(4 T-APS) pixels can be simulated in SPICE environment. The variable capacitance characteristics of double junctions in pinned photodiodes(PPDs) and the threshold voltage difference formed by channel nonuniform doping in transfer gates(TGs) are considered with this model. The charge transfer process of photogenerated electrons from PPDs to the floating diffusion(FD) is analyzed, and the function of nonuniform doping of TGs in suppressing charge injection back to PPDs is represented with the model. The optical and electrical characteristics of all devices in the pixel are effectively combined with the model. Moreover, the charge transfer efficiency and the voltage variation in PPD can be described with the model. Compared with the hybrid simulation in TCAD and the Verilog-A simulation in SPICE, this model has higher simulation efficiency and accuracy, respectively. The effectiveness of the MOS-based model is experimentally verified in a 3 μm test pixel designed in 0.11 μm CIS process.

关键词： four-transistor active pixel sensor(4T-APS) nonuniform doping SPICE model transfer gate variable capacitance

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An On-line Multiparametric Water Quality Monitoring system Based on Visible Spectrophotometry

An On-line Multiparametric Water Quality Monitoring System B...

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2nd International Conference on Manufacturing science and Engineering

作者： Liao, Haiyang Tian, Peng Du, Yu Wen, Zhiyu National Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology China Microsystem Research Center Chongqing University Chong Qing 400044 China

ISBN: (纸本)9783037850312

Water quality monitoring plays an important role in contamination control and environment protection. This paper describes an on-line multiparametric water quality monitoring system based on visible spectrophotometry, which combines embedded technology with GPRS telecommunication technology. This system can realize online wireless monitoring to concentrations of chromium (Cr), plumbum (Pb), A surfactant (AS), chemical oxygen demand (COD), ammonia nitrogen (AN), total phosphorus (TP) and total phenol (TPh) in real time. The mechanical structure, hardware circuit and software design of the system are completed. The absorption spectrums of pure water and MB-SDS complex have been measured. Preliminary experiments using a model machine show that each mechanism of the system runs well. Moreover, the monitor possesses many advantages, such as high degree of automation, high reliability, high efficiency, compact structure, small size, and so on.

关键词： Water Quality Monitoring Visible Spectrophotometry Embedded technology GPRS

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Properties of metal–insulator–metal waveguide loop reflector

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Chinese Physics B 2019年第9期28卷 249-252页

作者： Hu Long Xuan-Ke Zeng Yi Cai Xiao-Wei Lu Hong-Yi Chen Shi-Xiang Xu Jing-Zhen Li Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology College of Electronic Science and TechnologyShenzhen UniversityShenzhen 518060China Key Laboratory of Optoelectronic Devices and System of Ministry of Education and Guangdong Province College of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China

A new type and easy-to-fabricate metal-insulator-metal(MIM) waveguide reflector based on Sagnac loop is designed and *** transfer matrix theoretical model for the transmission of electric fields in the reflector is established,and the properties of the reflector are studied and *** simulation results indicate that the reflectivity strongly depends on the coupling splitting ratio determined by the coupling ***, different reflectivities can be realized by varying the coupling *** an optimum coupling length of 750 nm, the 3-dB reflection bandwidth of the MIM waveguide reflector is as wide as 1.5 μm at a wavelength of 1550 nm, and the peak reflectivity and isolation are 78%and 23 dB, respectively.

关键词： surface plasmon polaritons waveguide reflector

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Ferroelectric materials, devices, and chips technologies for advanced computing and memory applications: development and challenges

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science China(Information sciences) 2025年第06期 118-173页

作者： Xiao YU Ni ZHONG Yan CHENG Tianjiao XIN Qing LUO Tiancheng GONG Jiezhi CHEN Jixuan WU Ran CHENG Zhiyuan FU Kechao TANG Jin LUO Tianling REN Fei XUE Lin CHEN Tianyu WANG Xueqing LI Xiuyan LI Ping WANG Xinqiang WANG Jie SUN Anquan JIANG Peiyuan DU Bing CHEN Chengji JIN Jiajia CHEN Haoji QIAN Wei MAO Siying ZHENG Huan LIU Haiwen XU Can LIU Zhihao SHEN Xiaoxi LI Bochang LI Zheng-Dong LUO Jiuren ZHOU Yan LIU Yue HAO Genquan HAN Hangzhou Institute of Technology Xidian University Faculty of Integrated Circuits Xidian University Key Laboratory of Polar Materials and Devices(MOE) Department of Electronics East China Normal University State Key Lab of Fabrication Technologies for Integrated Circuits Institute of Microelectronics of Chinese Academy of Sciences School of Information Science and Engineering Shandong University College of Integrated Circuit Zhejiang University School of Integrated Circuits Southeast University School of Integrated Circuits Peking University School of Integrated Circuits Tsinghua University Center for Quantum Matter School of Physics Zhejiang University School of Microelectronics State Key Laboratory of Integrated Chips and Systems Fudan University Department of Electronic Engineering Tsinghua University National Key Laboratory of Micro and Nano Fabrication Technology and the Department of Micro-Nano Electronics Shanghai Jiao Tong University State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-Optoelectronics School of Physics Peking University Hangzhou Huarui Chip Innovation Technology Co. Ltd.

Hafnium（Hf） oxide-based ferroelectric materials have emerged as a transformative platform for next-generation non-volatile memory and advanced computing technologies. This review comprehensively examines the development, challenges, and applications of HfO2ferroelectrics, emphasizing their CMOS compatibility, scalability, and robust polarization at nanoscale dimensions. Breakthroughs in doping strategies, stress engineering, and VO control have stabilized the metastable orthorhombic phase, enabling high-performance devices such as ferroelectric RAM（FeRAM）, ferroelectric field-effect transistors（FeFETs）, and ferroelectric tunnel junctions（FTJs）. These devices offer ultrafast switching, low power consumption, and multi-level storage, driving innovations in neuromorphic computing, in-memory processing, and cryogenic systems; nonetheless, they face ongoing challenges in reliability, such as fatigue and imprint effects, and scalability at sub-5 nm technology nodes. Emerging frontiers, such as wurtzite-structured nitrides（e.g., AlScN） and antiferroelectric ZrO2-based systems, have garnered significant attention due to their exceptionally high remanent polarization and promising potential for enhanced endurance, respectively. Further addressing the reliability issues of these emerging ferroelectric materials and the challenges associated with large-scale integration processes through interdisciplinary efforts will unlock the full potential of ferroelectric technologies, positioning them as pivotal enablers of post-Moore computing architectures and sustainable AI-driven applications.

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High-Q unidirectional polarization singularities

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Physical Review Applied 2025年第5期23卷 054020-054020页

作者： Chuanlin Li Wenhao Wang Jianfeng Chen Mengqi Liu Aobo Ren Cheng-Wei Qiu Hongxing Xu Zhiming Wang Jiang Wu Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 China Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore Centre for Disruptive Photonic Technologies The Photonics Institute Nanyang Technological University Singapore 637371 Singapore Department of Electrical and Computer Engineering National University of Singapore Singapore 117583 Singapore Institute of Engineering Thermophysics School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China School of Physics and Technology Center for Nanoscience and Nanotechnology and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education Wuhan University Wuhan 430072 China

Unidirectional guided resonances (UGRs), which are eigenstates that radiate exclusively in a single channel, are promising for advancing diverse photonic devices. However, existing approaches face an inherent trade-off between achieving high-Q factors and maximizing the radiation-asymmetry ratios. To address this challenge, we propose a scheme that exploits both out-of-plane and in-plane couplings to generate bound states in the continuum with precise radial and rotational control in momentum space. This approach effectively decouples the Q factors of UGRs from their radiation-asymmetry ratios. As a result, we achieve UGRs with Q factors exceeding 104, which is 1–2 orders of magnitude higher than traditional UGRs. Furthermore, we demonstrate the ability to reverse the emission direction of these UGRs, leading to a broad range of radiation-asymmetry ratios from −53 to 55 dB. We further validate the practical realization of high-Q UGRs using a silicon-on-silica system. Our findings provide a versatile method for generating high-Q UGRs, offering alternative pathways for innovations in nonlinear optics, light-matter interactions, and advanced optoelectronic applications.

关键词： Nonlinear optics

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Bionics-inspired highly robust and fatigue-resistant hydrogel composite elastomers with multi-applications

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Chemical Engineering Journal 2025年 516卷

作者： Jiaxin Shen Haizhou Huang Chen Li Huihui Shi Shisheng Hou Kuibo Yin Hengchang Bi Shu Wan Litao Sun SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Collaborative Innovation Center for Micro/Nano Fabrication Device and System Southeast University Nanjing 210096 China Key Laboratory of Opto-Electronic Science and Technology for Medicine of Ministry of Education Fujian Provincial Key Laboratory of Photonics Technology College of Photonic and Electronic Engineering Fujian Normal University Fuzhou 350117 China Chongqing Key Laboratory of Precision Optics Chongqing Institute of East China Normal University Chongqing 401120 China In Situ Devices Center School of Integrated Circuits East China Normal University Dongchuan Road Shanghai 200241 China Key Laboratory of Optoelectronic Technology and Systems Ministry of Education Key Disciplines Laboratory of Novel Micro-Nano Devices and System Technology School of Optoelectronics Engineering Chongqing University Chongqing 400044 China

The key factors limiting the potential applications of hydrogels are their weak mechanical properties, specifically fatigue and hysteresis, which arise from the breakage of low-energy amorphous polymer chains within the hydrogels. To address this issue, this study presents a universal approach for fabricating composite hydrogels that exhibit remarkable elasticity and mechanical stability. The Ecoflex elastomer backbone was integrated into the organic hydrogel to mimic the cytoskeletal structure.. This innovation serves to bolster the material’s fatigue resistance and eliminate hysteresis. The findings reveal that the organic hydrogel/porous Ecoflex (OHPE) composite displays impressive mechanical stability. Remarkably, it can endure up to 5,000 load-unload cycles, even at a 250 % strain, with minimal alteration in its mechanical properties. Furthermore, OHPE exhibits excellent resistance to dewatering and freezing, making it a robust material for various applications. Additionally, OHPE performs admirably as strain sensors, temperature sensors, and triboelectric nanogenerators, highlighting its versatility and potential for widespread use.

关键词： Hydroelasticity

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Computing-heightened low-cost high-dimensional controlled-SUM gates

arXiv

引用

arXiv 2025年

作者： Fan, Zhi-Guo Bai, Zhuo-Ya Tan, Qiu-Lin Du, Fang-Fang Key Laboratory of Micro/nano Devices and Systems Ministry of Education North University of China Taiyuan030051 China Beijing National Research Center for Information Science and Technology Department of Electronic Engineering Tsinghua University Beijing100084 China

Qudit-based quantum gates offer several advantages over qubit-based counterparts, such as higher information density, the ability to address more complex problems, and richer quantum operations. In this paper, we present three realistic protocols for implementing a 4×4-dimensional (16D) two-qudit controlled-SUM (CSUM) gate, where the 4D control qudit and 4D target qudit are encoded in the polarization degree of freedom (DoF) and spatial DoF of two photons, respectively. The first protocol is implemented exclusively using linear optical elements without auxiliary resources, making it feasible with current optical technologies and achieving an efficiency of 1/9. The second protocol utilizes photon scattering by a microcavity-quantum-dot system, enabling the 16D CSUM gate to operate deterministically without postselection. The third protocol introduces an error-heralded mechanism based on the second protocol, theoretically achieving unity fidelity. Moreover, all protocols operate without ancillary photons, offering the advantages of compact circuits and low cost while further promoting the development of high-dimensional quantum computation. Copyright © 2025, The Authors. All rights reserved.

关键词： Qubits

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