检索结果-南通市图书馆

fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

Light(Science & Applications) 2021年第9期10卷 1768-1779页

作者： Mengqiang Zou Changrui Liao Shen Liu Cong Xiong Cong Zhao Jinlai Zhao Zongsong Gan Yanping Chen Kaiming Yang Dan Liu Ying Wang Yiping Wang Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/GuangDong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen518060China Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things Guangdong and Hong Kong Joint Research Centre for Optical Fibre SensorsShenzhen UniversityShenzhen518060China College of Materials Science and Engineering Shenzhen Key Laboratory of Polymer Science and TechnologyGuangdong Research Center for Interfacial Engineering of Functional MaterialsShenzhen518060China Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Wuhan430074China Shenzhen Huazhong University of Science and Technology Research Institute ShenzhenGuangdong518057China

Micromanipulation and biological,material science,and medical applications often require to control or measure the forces asserted on small ***,we demonstrate for the first time the microprinting of a novel fiber-tip-polymer clamped-beam probe micro-force sensor for the examination of biological *** proposed sensor consists of two bases,a clamped beam,and a force-sensing probe,which were developed using a femtosecond-laser-induced two-photon polymerization(TPP)*** on the finite element method(FEM),the static performance of the structure was simulated to provide the basis for the structural design.A miniature all-fiber micro-force sensor of this type exhibited an ultrahigh force sensitivity of 1.51 nmμN−1,a detection limit of 54.9 nN,and an unambiguous sensor measurement range of~2.9 *** Young’s modulus of polydimethylsiloxane,a butterfly feeler,and human hair were successfully measured with the proposed *** the best of our knowledge,this fiber sensor has the smallest force-detection limit in direct contact mode reported to date,comparable to that of an atomic force microscope(AFM).This approach opens new avenues towards the realization of small-footprint AFMs that could be easily adapted for use in outside specialized *** such,we believe that this device will be beneficial for high-precision biomedical and material science examination,and the proposed fabrication method provides a new route for the next generation of research on complex fiber-integrated polymer devices.

关键词： fiber beam polymer

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

fiber Nonlinearity Post-Compensation by Optical Phase Conjugation for 40Gb/s CO-OFDM Systems

引用

Chinese Physics Letters 2011年第6期28卷 164-167页

作者： QIAO Yao-Jun LIU Xue-Jun JI Yue-Feng Key Laboratory of Information Photonics and Optical Communications(Ministry of Education) Beijing University of Posts and TelecommunicationsBeijing 100876

fiber nonlinearity impairments in a 40-Gb/s coherent optical orthogonal frequency division multiplexing(CO-OFDM)system are post-compensated for by a new method of fiber nonlinearity post-compensation(FNPC).The FNPC located before the CO-OFDM receiver includes an optical phase conjugation(OPC)unit and a subsequent 80-km-high nonlinear fiber(HNLF)as a fiber nonlinearity *** OPC unit is based on a four wave mixing effect in a semiconductor optical *** fiber nonlinearity impairments in the transmission link are post-compensated for after OPC by transmission through the HNLF with a large nonlinearity *** results show that the nonlinear threshold(NLT)(for Q>10 dB)can be increased by about 2.5 dB and the maximum Q factor is increased by about 1.2 dB for the single−channel 40-Gb/s CO-OFDM system with periodic dispersion *** the 50-GHz channel spacing wavelength-division-multiplexing system,the NLT increases by 1.1 dB,equating to a 0.7 dB improvement for the maximum Q factor.

关键词： fiber amplifier nonlinearity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

fiber Grating Sensor with Enhanced Pressure and Temperature Sensitivity

引用

Chinese Physics Letters 2000年第2期17卷 115-116页

作者： LIU Yun-Qi GUO Zhuan-Yun LIU Zhi-Guo ZHAO Dong-Hui GE Chun-Feng DONG Xiao-Yi Institute of Modern Optics Nankai UniversityTianjin 300071

A technique is used to enhance the pressure and temperature sensitivity of a fiber Bragg grating *** grating is packaged by using polymer jacket,which exhibits no significant chirp due to the adoption of the special *** measured pressure and temperature sensitivity of the structured grating is 6.28×10^(-5)/MPa and5.18×10^(-5)/℃.The wavelength shift due to pressure and temperature can be enhanced about 31.5 times for pressure and 7.7 times for temperature.

关键词： technique temperature fiber

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

fiber Optic Moiré Interferometer

引用

Chinese Physics Letters 1997年第9期14卷 675-677页

作者： YUAN Li-bo Department of Physics Harbin Engineering UniversityHarbin 150001

A novel fiber optic moiréinterferometer has been developed and demonstrated.A He-Ne laser and three high birefringence fibers were used to configurate a fiber optic *** moiréfringe patterns formed by the interferometer depend on the arrangement of three fiber *** experiment results and the intensity distribution function of the interference patterns are given.

关键词： interferometer fiber arrangement

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

fiber-shaped organic electrochemical transistors for biochemical detections with high sensitivity and stability

引用

Science China Chemistry 2020年第9期63卷 1281-1288页

作者： Xiaoying Wu Jianyou Feng Jue Deng Zhichang Cui Liyuan Wang Songlin Xie Chuanrui Chen Chengqiang Tang Zhengqi Han Hongbo Yu Xuemei Sun Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Scienceand Laboratory of Advanced MaterialsFudan UniversityShanghai 200438China Vision Research Laboratory School of Life SciencesState Key Laboratory of Medical NeurobiologyCollaborative Innovation Centre for Brain ScienceFudan UniversityShanghai 200438China

Precise and continuous monitoring of biochemicals by biosensors assists to understand physiological functions for various diagnostics and therapeutic *** implanted biosensors,small size and flexibility are essential for minimizing tissue damage and achieving accurate ***,the active surface area of sensor decreases as the sensor becomes smaller,which will increase the impedance and decrease the signal to noise ratio,resulting in a poor detection *** advantages of local amplification effect,organic electrochemical transistors(OECTs)constitute promising candidates for high-sensitive ***,their detections in deep tissues are rarely ***,we report a family of implantable,fiber-shaped all-in-one OECTs based on carbon nanotube fibers for versatile biochemical detection including H2O2,glucose,dopamine and *** fiber-shaped OECTs demonstrated high sensitivity,dynamical stability in physiological environment and antiinterference *** implantation in mouse brain,7-day dopamine monitoring in vivo was realized for the first *** fiber-shaped OECTs could be great additions to the"life science"tool box and represent promising avenue for biomedical monitoring.

关键词： carbon nanotube fiber flexible organic electrochemical transistor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

fiber-Optically Triggered Four Parallel GaAs Photoconductive Semiconductor Switches

引用

Plasma Science and Technology 2011年第6期13卷 747-750页

作者：施卫薜红李宁陈素果代瑞娟 Applied Physics Department Xi'an University of Technology State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University

Four parallel GaAs photoconductive semiconductor switches （PCSSs） were triggered simultaneously by four 1064 nm laser beams. The transient characteristics of four linear electrical pulses were investigated. When the energy of four laser beams were 16.4 m J, 15.6 m J, 15.3 m J, and 13.7 m J, respectively, four stable electrical pulses of about 25 ns width and 10 ns rise time were obtained at the same bias voltage of 8 kV. The maximum switching voltage amplitude was 3.8 kV. With the triggering pulse energy and bias voltage kept constant, the three GaAs PCSSs were triggered at 10 Hz laser pulse. The method of synchronization calculation was given, and the synchronization of four parallel GaAs PCSSs was calculated to be 79 ps. The influence of bias voltage and laser energy on the voltage amplitude of electrical pulse was analyzed. Furthermore, relationship between the synchronization and the jitter time was also discussed.

关键词： GaAs PCSS fiber linear mode electrical pulse synchronization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Particle penetration in fiber filters

引用

Particuology 2018年第5期16卷 70-79页

作者： Norbert Riefler Martina Ulrich Marko Morshaiuser Udo Fritsching Process Engineering Institute of Materials ScienceBadgasteiner Strasse 328359BremenGermany Lydall Gutsche GmbH & Co.KG Hermann-Muth-Str.836039FuldaGermany Particles and Process Engineering University of BremenBibliothekstrasse 128359BremenGermany

Particle separation from gases is an important unit operation in manifold industrial applications,such as those conducted in environmental *** analysis of particle penetration and separation in fiber filters,standard dust particles (Al2O3)were loaded in the gas flow of a filter test facility and deposited within new and uncharged fiber *** loaded filters were analyzed by micro-computer tomography and scanning electron ***-dimensional tomograms of the samples show an exponential decay of the penetration depth of the *** dependency is confirmed by simulations conducted using the discrete element method coupled with computational fluid dynamics within unloaded and loaded fiber *** processes of particle separation at the fibers as well as the filtration efficiency and time-dependent filtering process are derived from the *** particle clustering in the filter medium and partial filter clogging are thus identified.

关键词： Particle filtration fiber filter X-ray microtomography Computational fluid dynamics-discrete element method coupling High-fidelity simulation Transient mesh morphing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Wet spinning of fiber-shaped flexible Zn-ion batteries toward wearable energy storage

引用

Journal of Energy Chemistry 2022年第8期31卷 192-200,I0006页

作者： Tingting Gao Guangyuan Yan Xin Yang Qing Yan Yankuan Tian Jianwei Song Faxue Li Xueli Wang Jianyong Yu Yiju Li Shaojun Guo Key Laboratory of Textile Science and Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai 201620China Innovation Center for Textile Science and Technology Donghua UniversityShanghai 201620China School of Materials Science and Engineering Peking UniversityBeijing 100871China State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace EngineeringXi’an Jiaotong UniversityXi’an 710049ShaanxiChina School of Biological and Chemical Engineering NingboTech UniversityNingbo 315100ZhejiangChina

High-performance flexible one-dimensional(1D)electrochemical energy storage devices are crucial for the applications of wearable *** much progress on various 1D energy storage devices has been made,challenges involving fabrication cost,scalability,and efficiency ***,a highperformance flexible all-fiber zinc-ion battery(ZIB)is fabricated using a low-cost,scalable,and efficient continuous wet-spinning *** composite inks containing cellulose nanofibers/carbon nanotubes(CNFs/CNTs)binary composite network and either manganese dioxide nanowires(MnO_(2) NWs)or commercial Zn powders are utilized to spinning fiber cathodes and anodes,***_(2) NWs and Zn powders are uniformly dispersed in the interpenetrated CNFs/CNTs fibrous network,leading to homogenous composite inks with an ideal shear-thinning *** obtained fiber electrodes demonstrate favorable uniformity and *** from the well-designed electrodes,the assembled flexible fiber-shaped ZIB delivers a high specific capacity of 281.5 m Ah g^(-1) at 0.25 A g^(-1) and displays excellent cycling stability over 400 ***,the wet-spun fiber-shaped ZIBs achieve ultrahigh gravimetric and volumetric energy densities of 47.3 Wh kg^(-1) and 131.3 m Wh cm^(-3),respectively,based on both cathode and anode and maintain favorable stability even after 4000 bending *** work offers a new concept design of 1D flexible ZIBs that can be potentially incorporated into commercial textiles for wearable and portable electronics.

关键词： Manufacturing Wet spinning Zn ion battery Nanocellulose fiber

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

fiber Solar Cells from High Performances Towards Real Applications

引用

Advanced fiber Materials 2022年第6期4卷 1293-1303页

作者： Weijie Zhai Zhengfeng Zhu Xuemei Sun Huisheng Peng State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceLaboratory of Advanced MaterialsFudan UniversityShanghai 200438China

The evolution of electronic systems towards small,flexible,portable and human-centered forms drives the demand for onbody power supplies with lightweight and high *** solar cells that can be integrated into soft and lightweight textiles are considered as potential sustainable power sources for the next generation of wearable *** this end,they have been extensively investigated in the past decade aiming to improve their photovoltaic performances,but there is still a big gap between the high-performance devices and real ***,the key advances of configurations,fabrications and performances of fiber solar cells are highlighted and *** on the current progress,the latest ideas with regard to the remaining challenges and opportunities beyond the reach of the previous studies are presented.

关键词： Flexible fiber Solar cell Power textile

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Multimodal nonlinear endomicroscopic imaging probe using a double-core double-clad fiber and focus-combining micro-optical concept

引用

Light(Science & Applications) 2021年第11期10卷 2173-2183页

作者： Ekaterina Pshenay-Severin Hyeonsoo Bae Karl Reichwald Gregor Matz Jörg Bierlich Jens Kobelke Adrian Lorenz Anka Schwuchow Tobias Meyer-Zedler Michael Schmitt Bernhard Messerschmidt Juergen Popp GRINTECH GmbH Schillerstr.107745JenaGermany Leibniz Institute of Photonic Technology Member of Leibniz Health TechnologiesAlbert-Einstein-Str.907745JenaGermany Institute of Physical Chemistry and Abbe Center of Photonics Friedrich Schiller University JenaHelmholtzweg 407743JenaGermany

Multimodal non-linear microscopy combining coherent anti-Stokes Raman scattering,second harmonic generation,and two-photon excited fluorescence has proved to be a versatile and powerful tool enabling the label-free investigation of tissue structure,molecular composition,and correlation with function and disease *** a routine medical application,the implementation of this approach into an in vivo imaging endoscope is ***,this is a difficult task due to the requirements of a multicolour ultrashort laser delivery from a compact and robust laser source through a fiber with low losses and temporal synchronization,the efficient signal collection in epi-direction,the need for small-diameter but highly corrected endomicroobjectives of high numerical aperture and compact ***,we introduce an ultra-compact fiber-scanning endoscope platform for multimodal non-linear endomicroscopy in combination with a compact four-wave mixing based fiber *** heart of this fiber-scanning endoscope is an in-house custom-designed,single mode,double clad,double core pure silica fiber in combination with a 2.4 mm diameter NIR-dual-waveband corrected endomicroscopic objective of 0.55 numerical aperture and 180µm field of view for non-linear imaging,allowing a background free,low-loss,high peak power laser delivery,and an efficient signal collection in backward direction.A linear diffractive optical grating overlays pump and Stokes laser foci across the full field of view,such that diffraction-limited performance is demonstrated for tissue imaging at one frame per second with sub-micron spatial resolution and at a high transmission of 65%from the laser to the specimen using a distal resonant fiber scanner.

关键词： fiber double scanner

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：