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Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono
《化学科学与工程前沿(英文)》 2019年 第13卷 第1期 页码 164-170 doi: 10.1007/s11705-018-1755-2
Chalcogenide nanostructured semiconductor, copper sulfide (CuS) was prepared from copper and sulfur powders in stoichiometric ratio by a simple, fast, and convenient one-step mechanochemical synthesis after 40 min of milling in an industrial eccentric vibratory mill. The kinetics of the mechanochemical synthesis and the influence of the physical properties of two Cu powder precursor types on the kinetics were studied. The crystal structure, physical properties, and morphology of the product were characterized by X-ray diffraction (XRD), the specific surface area measurements, particle size distribution and scanning electron microscopy. The XRD analysis confirmed the hexagonal crystal structure of the product-CuS (covellite) with the average size of the crystallites 11 nm. The scanning electron microscopy analysis has revealed that the agglomerated grains have a plate-like structure composed of CuS nanoparticles. The thermal analysis was performed to investigate the thermal stability of the mechanochemically synthesized CuS. The optical properties were studied using UV-Vis and photoluminescence spectroscopy. The determined optical band gap energy 1.80 eV responds to the value of the bulk CuS, because of agglomerated nanoparticles. In addition, a mechanism of CuS mechanochemical reaction was proposed, and the verification of CuS commercial production was performed.
关键词: copper sulfide industrial mechanochemical synthesis thermal analysis optical properties
WANG Shoulian, HE Jie, ZENG Yu, YAN Bin, WANG Yinghan
《化学科学与工程前沿(英文)》 2008年 第2卷 第3期 页码 265-268 doi: 10.1007/s11705-008-0054-8
Development of surface reconstruction algorithms for optical interferometric measurement
Dongxu WU, Fengzhou FANG
《机械工程前沿(英文)》 2021年 第16卷 第1期 页码 1-31 doi: 10.1007/s11465-020-0602-6
关键词: surface topography measurement optical interferometry coherence envelope phase-shifting algorithm
Precision glass molding: Toward an optimal fabrication of optical lenses
Liangchi ZHANG,Weidong LIU
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 3-17 doi: 10.1007/s11465-017-0408-3
It is costly and time consuming to use machining processes, such as grinding, polishing and lapping, to produce optical glass lenses with complex features. Precision glass molding (PGM) has thus been developed to realize an efficient manufacture of such optical components in a single step. However, PGM faces various technical challenges. For example, a PGM process must be carried out within the super-cooled region of optical glass above its glass transition temperature, in which the material has an unstable non-equilibrium structure. Within a narrow window of allowable temperature variation, the glass viscosity can change from 105 to 1012 Pa·s due to the kinetic fragility of the super-cooled liquid. This makes a PGM process sensitive to its molding temperature. In addition, because of the structural relaxation in this temperature window, the atomic structure that governs the material properties is strongly dependent on time and thermal history. Such complexity often leads to residual stresses and shape distortion in a lens molded, causing unexpected changes in density and refractive index. This review will discuss some of the central issues in PGM processes and provide a method based on a manufacturing chain consideration from mold material selection, property and deformation characterization of optical glass to process optimization. The realization of such optimization is a necessary step for the Industry 4.0 of PGM.
关键词: precision glass molding optical lens constitutive modeling optimization manufacturing chain Industry 4.0
刘良炎
《中国工程科学》 2001年 第3卷 第9期 页码 86-94
综合介绍了近年国外关于低衰耗的色散补偿光纤,非零色散位移光纤,用于恶劣环境的碳涂覆和氮化硅涂覆光纤的研究;光纤带制造技术包括光纤带的结构、涂层、性能、生产工艺,大芯数光纤带状光缆包括层绞式松管、中心松管式、骨架式、干缆芯带状光缆的设计制造技术的最新进展。
潘君骅
《中国工程科学》 2000年 第2卷 第3期 页码 32-35
文章简单论述了现代成像光学主要领域的情况,指出非球面反射系统是发展的必然趋势。讨论了加工与检验方面的基本情况及应着重深人研究的问题。对镜坯材料也提了一点看法。
Effects of critical geometric parameters on the optical performance of a conical cavity receiver
Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ
《能源前沿(英文)》 2019年 第13卷 第4期 页码 673-683 doi: 10.1007/s11708-019-0630-2
关键词: parabolic collector conical cavity receiver critical geometric parameters optical performance
Recent advancements in optical microstructure fabrication through glass molding process
Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG
《机械工程前沿(英文)》 2017年 第12卷 第1期 页码 46-65 doi: 10.1007/s11465-017-0425-2
Optical microstructures are increasingly applied in several fields, such as optical systems, precision measurement, and microfluid chips. Microstructures include microgrooves, microprisms, and microlenses. This paper presents an overview of optical microstructure fabrication through glass molding and highlights the applications of optical microstructures in mold fabrication and glass molding. The glass-mold interface friction and adhesion are also discussed. Moreover, the latest advancements in glass molding technologies are detailed, including new mold materials and their fabrication methods, viscoelastic constitutive modeling of glass, and microstructure molding process, as well as ultrasonic vibration-assisted molding technology.
关键词: optical microstructure microgroove microlens glass molding process single-point diamond cutting
真空光镊技术综述 Special Feature on Precision Measurement and Inst
Nan LI, Xun-min ZHU, Wen-qiang LI, Zhen-hai FU, Meng-zhu HU, Hui-zhu HU
《信息与电子工程前沿(英文)》 2019年 第20卷 第5期 页码 655-673 doi: 10.1631/FITEE.1900095
关键词: 光镊;真空光阱;激光冷却
唐勇,孙小菡,张明德,丁东
《中国工程科学》 2001年 第3卷 第12期 页码 71-75
提出了一种带有光监控通道(OSC)子系统的光传送网(OTN)分层结构模型,分析了OSC中的信号特点,指出OSC信号质量决定了运行、管理和维护(OAM)信号的可靠性。依据Q值与误码率(BER)的一一对应关系,提出了一种可在线监测OSC信号Q值的方案,并基于数字信号处理芯片(DSP)技术设计了监测模块,实现了OSC信号在线Q值监测。
New computational treatment of optical wave propagation in lossywaveguides
Jian-xin ZHU,Guan-jie WANG
《信息与电子工程前沿(英文)》 2015年 第16卷 第8期 页码 646-653 doi: 10.1631/FITEE.1400406
关键词: Adjoint operator Orthogonal Chebyshev Pseudospectral method Dirichlet-to-Neumann map
谈仲纬,吕超
《中国工程科学》 2020年 第22卷 第3期 页码 100-107 doi: 10.15302/J-SSCAE-2020.03.016
作为激光技术的重要应用,光纤通信技术是搭建现代通信网络的重要桥梁。随着物联网、大数据、云计算、虚拟现实和人工智能等新兴技术的涌现,信息传递需求与日俱增,这对光纤通信技术的发展提出了更高要求。本文在系统梳理光纤通信技术国内外发展现状的基础上,分析了在具体场景应用中面临的问题与挑战,研判了未来光纤通信技术发展的方向。经研究分析,激光通信技术在超大容量光纤通信系统中面临的挑战可从发射功率增加、光放大器带宽增加、低传输损耗光纤以及空分复用相关技术研究等方面入手探讨解决思路;同时结合现实应用情况,本文对面向其他场景的光纤通信系统成本困境的解决进行了思考。总体而言,光纤通信技术将朝着超大容量、智能化、集成化的方向不断演进,未来期望可以实现智能化网络参数监测和超长距离、超大容量信息传输,并且随着集成技术和光通信器件的不断进步,必将推动整个光纤通信行业的高性能、低成本发展。
Smart optical-fiber structure monitoring based on granular computing
Guan LU, Dakai LIANG,
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 462-465 doi: 10.1007/s11465-009-0073-2
关键词: smart material and structure GrC optical fiber sensor rough set clustering algorithm
A novel decoupling approach to an integrated optical-fiber proximity sensor for robots
LIU Guixiong, LI Xiani
《机械工程前沿(英文)》 2007年 第2卷 第2期 页码 164-167 doi: 10.1007/s11465-007-0027-5
关键词: multiscale different self-compensational integrated information implementation
Reduced texaphyrin: A ratiometric optical sensor for heavy metals in aqueous solution
Harrison D. Root, Gregory Thiabaud, Jonathan L. Sessler
《化学科学与工程前沿(英文)》 2020年 第14卷 第1期 页码 19-27 doi: 10.1007/s11705-019-1888-y
关键词: texaphyrin fluorescent sensor ion-sensing indium mercury
标题 作者 时间 类型 操作
Structural and optical properties of nanostructured copper sulfide semiconductor synthesized in an industrial
Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono
期刊论文
Effect of polymer structures on electro-optical properties of polymer stabilized liquid crystal films
WANG Shoulian, HE Jie, ZENG Yu, YAN Bin, WANG Yinghan
期刊论文
Development of surface reconstruction algorithms for optical interferometric measurement
Dongxu WU, Fengzhou FANG
期刊论文
Precision glass molding: Toward an optimal fabrication of optical lenses
Liangchi ZHANG,Weidong LIU
期刊论文
Effects of critical geometric parameters on the optical performance of a conical cavity receiver
Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ
期刊论文
Recent advancements in optical microstructure fabrication through glass molding process
Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG
期刊论文
New computational treatment of optical wave propagation in lossywaveguides
Jian-xin ZHU,Guan-jie WANG
期刊论文
A novel decoupling approach to an integrated optical-fiber proximity sensor for robots
LIU Guixiong, LI Xiani
期刊论文