检索结果-南通市图书馆

two-dimensional material functional devices enabled by direct laser fabrication

在线全文

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2018年第1期11卷 2-22页

作者： tieshan yang Han LIN Baohua JIA Centre for Micro-Photonics Faculty of Science Engineering and Technology Swinbume University of Technology Hawthorn Victoria 3122 Australia

During the past decades,atomically thin,two-dimensional（2D）layered materials have attracted tremen-dous research interest on both fundamental properties and practical applications because of their extraordinary mechanical,thermal,electrical and optical properties,which are distinct from their counterparts in the bulk *** fabrication methods,such as soft-lithography,screen-printing,colloidal-templating and chemical/dry etching have been developed to fabricate micro/ nanostructures in 2D *** laser fabrication with the advantages of unique three-dimensional（3D）processing capability,arbitrary-shape designability and high fabrication accuracy up to tens of nanometers,which is far beyond the optical diffraction limit,has been widely studied and applied in the fabrication of various micro/ nanostructures of 2D materials for functional *** timely review summarizes the laser-matter interaction on 2D materials and the significant advances on laser-assisted 2D materials fabrication toward diverse functional photonics,optoelectronics,and electrochemical energy storage *** perspectives and challenges in designing and improving laser fabricated 2D materials devices are discussed as well.

关键词： two-dimensional (2D) materials direct laser fabrication laser thinning laser doping photonics and optoelectronics devices electrochemical energy storage

Ultrafast direct laser writing of 2D materials for multifunctional photonics devices [Invited]

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2020年第2期18卷 80-85页

作者： tieshan yang Han Lin Baohua Jia Centre for Translational Atomaterials Faculty of ScienceEngineering and TechnologySwinburne University of TechnologyHawthornVictoria 3122Australia

Recently,fundamental properties and practical applications of two-dimensional(2D)materials have attracted tremendous ***/nanostructures and functional devices in 2D materials have been fabricated by various *** direct laser writing(DLW)with the advantages of rich light-matter interactions;unique three-dimensional processing capability;arbitrary-shape design flexibility;and minimized thermal effect,which enables high fabrication accuracy resolution,has been widely applied in the fabrication of 2D materials for multifunctional *** timely review summarizes the laser interactions with 2D materials and the advances in diverse functional photonics devices by *** perspectives and challenges in designing and improving laser-fabricated 2D material photonic devices are also discussed.

关键词： 2D materials direct laser writing photonics devices

Arbitrarily structured quantum emission with a multifunctional metalens

在线全文

学校读者我要写书评

暂无评论

eLight 2023年第1期3卷 75-84页

作者： Chi Li Jaehyuck Jang Trevon Badloe tieshan yang Joohoon Kim Jaekyung Kim Minh Nguyen Stefan A.Maier Junsuk Rho Haoran Ren Igor Aharonovich School of Mathematical and Physical Sciences University of Technology SydneyUltimoNSW 2007Australia School of Physics and Astronomy Monash UniversityMelbourneVIC 3800Australia Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Graduate School of Artificial Intelligence Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Physics Imperial College LondonLondon SW72AZUK POSCO-POSTECH-RIST Convergence Research Centre for Flat Optics and Metaphotonics Pohang 37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang 37673Republic of Korea ARC Centre of Excellence for Transformative Meta-Optical Systems University of Technology SydneyUltimoNSW 2007Australia

Structuring light emission from single-photon emitters(SPEs)in multiple degrees of freedom is of great importance for quantum information processing towards higher ***,traditional control of emission from quantum light sources relies on the use of multiple bulky optical elements or nanostructured resonators with limited functionalities,constraining the potential of multi-dimensional *** we introduce the use of an ultrathin polarisation-beam-splitting metalens for the arbitrary structuring of quantum emission at room *** to the complete and independent polarisation and phase control at the single meta-atom level,the designed metalens enables simultaneous mapping of quantum emission from ultra-bright defects in hexagonal boron nitride and imprinting of an arbitrary wavefront onto orthogonal polarisation states of the *** hybrid quantum metalens enables simultaneous manipulation of multiple degrees of freedom of a quantum light source,including directionality,polarisation,and orbital angular *** could unleash the full potential of solid-state SPEs for their use as high-dimensional quantum sources for advanced quantum photonic applications.

关键词： temperature quantum arbitrary

THE EXISTENCE OF PERIODIC SOLUTIONS TO SECOND ORDER SELF-ADJOINT DIFFERENCE EQUATIONS

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

Annals of Differential Equations 2010年第2期26卷 155-164页

作者： tieshan He, Fengjian yang, Youfa Lei (Dept. of Computation Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, )

In this paper, we consider the existence of periodic solutions to a class of second order self-adjoint difference equations. By the least action principle and saddle point theorem in the critical point theory, some ne... 详细信息

关键词： periodic solution difference equations the least action principle saddle point theorem

Electrical control of quantum emitters in a Van der Waals heterostructure

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2022年第8期11卷 1790-1798页

作者： Simon J.U.White tieshan yang Nikolai Dontschuk Chi Li Zai-Quan Xu Mehran Kianinia Alastair Stacey Milos Toth Igor Aharonovich School of Mathematical and Physical Sciences University of Technology SydneyUltimoNSW2007Australia ARC Centre of Excellence for Transformative Meta-Optical Systems University of Technology SydneyUltimoNSW2007Australia School of Physics University of MelbourneParkvilleVIC3010Australia School of Science RMIT UniversityMelbourneVIC3001Australia

Controlling and manipulating individual quantum systems in solids underpins the growing interest in the development of scalable quantum ***,hexagonal boron nitride(hBN)has garnered significant attention in quantum photonic applications due to its ability to host optically stable quantum ***,the large bandgap of hBN and the lack of efficient doping inhibits electrical triggering and limits opportunities to study the electrical control of ***,we show an approach to electrically modulate quantum emitters in an hBN-graphene van der Waals *** show that quantum emitters in hBN can be reversibly activated and modulated by applying a bias across the ***,a significant number of quantum emitters are intrinsically dark and become optically active at non-zero *** explain the results,we provide a heuristic electrostatic model of this unique ***,employing these devices we demonstrate a nearly-coherent source with linewidths of~160 *** results enhance the potential of hBN for tunable solid-state quantum emitters for the growing field of quantum information science.

关键词： quantum hexagonal boron

基于法国规范的混凝土预制块墙面板加筋土挡土墙设计

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

路基工程 2014年第5期 61-67页

作者：周大全杨铁山中交第一公路勘察设计研究院有限公司西安710075

结合阿尔及利亚东西高速公路M3标段的实际应用,介绍了一种基于法国规范的混凝土预制块墙面板加筋土挡土墙设计。墙面板由椭圆形空心混凝土预制块构成,加筋土工布与墙面板的连接仅依靠预制块及其内部填土在自重下与土工布间的摩擦力。该... 详细信息

结合阿尔及利亚东西高速公路M3标段的实际应用,介绍了一种基于法国规范的混凝土预制块墙面板加筋土挡土墙设计。墙面板由椭圆形空心混凝土预制块构成,加筋土工布与墙面板的连接仅依靠预制块及其内部填土在自重下与土工布间的摩擦力。该种挡土墙具有工厂化生产、造价低、施工方便、快捷、安全可靠和利于绿化等优点。

关键词：预制块加筋土挡土墙设计

生物多糖冲洗胶液致严重过敏性休克1例并文献回顾

在线全文

学校读者我要写书评

暂无评论

中华麻醉学杂志 2024年第2期44卷 249-250页

作者：李想罗铁山刘文家杨永锦阳光融和医院麻醉手术科潍坊261072

患者,女性,年龄27岁,身高170 cm,体质量55 kg,门诊以"急性阑尾炎伴弥漫性腹膜炎"入院。既往体健,有过敏史(具体不详),5个月前有"宫外孕"全麻手术史。体格检查:体温36.5 ℃,脉搏76次/min,BP 114/74 mmHg(1 mmHg=0.133 kPa)。术前血常规:... 详细信息

患者,女性,年龄27岁,身高170 cm,体质量55 kg,门诊以"急性阑尾炎伴弥漫性腹膜炎"入院。既往体健,有过敏史(具体不详),5个月前有"宫外孕"全麻手术史。体格检查:体温36.5 ℃,脉搏76次/min,BP 114/74 mmHg(1 mmHg=0.133 kPa)。术前血常规:白细胞计数19.93×10^(9)/L、中性粒细胞百分比90.30%,血红蛋白浓度(Hb)124 g/L、血小板计数192×10^(9)/L,凝血功能、心电图等检查大致正常,ASA分级ⅡE级;拟在全身麻醉下行"腹腔镜下阑尾切除术"。

关键词：弥漫性腹膜炎急性阑尾炎血红蛋白浓度白细胞计数文献回顾全麻手术血小板计数体格检查

Adaptive median threshold algorithm used in FDIS of DSSS receivers

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2013年第1期24卷 11-18页

作者： Weijun yang Chaojie Zhang Xiaojun Jin Zhonghe Jin tieshan Yuan Department of Information Science and Electronic Engineering Zhejiang University Micro-Satellite Research Center Zhejiang University

For direct sequence spread spectrum （DSSS） receivers, the capability of rejecting narrow-band interference can be significantly improved by a process of frequency-domain interference suppression （FDIS）. The key issue of this process is how to determine a threshold to eliminate interference in the frequency domain, which has been extensively studied. However, these previous methods are tedious or very complex. A simple and ef- ficient algorithm based on medians is proposed. The elimination threshold is only related to the median by a scale factor, which can be obtained by the numerical analysis. Simulation results show that the algorithm provides excellent narrow-band interfer- ence suppression while only slightly degrading the signal-to-noise ratio （SNR）. A one-pass algorithm using logarithmic segmentation is further derived to estimate medians with low computational complexity. Finally, the FDIS is implemented in a field programmable gate array （FPGA） of Xilinx. Experiments are carried out by connecting the FDIS FPGA to a DSSS receiver, and the results show that the receiver has an effective countermeasure for a 60 dB interference-to-signal ratio （ISR）.

关键词： direct sequence spread spectrum (DSSS) discreteFourier transform (DFT) frequency-domain interference suppres-sion (FDIS) adaptive median threshold one-pass approximatemedians.

Target tracking algorithm based on a broad learning system

在线全文

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2022年第5期65卷 261-263页

作者： Dan ZHANG tieshan LI C.L.Philip CHEN He yang Navigation College Dalian Maritime University Innovation and Entrepreneurship Education College Dalian Minzu University School of Automation Engineering University of Electronic Science and Technology of China Computer Science and Engineering College South China University of Technology

Target tracking is one of the most important research topics in the field of computer vision. It has been widely applied in aerospace, automatic monitoring, navigation, human-computer interaction, and artificial intel... 详细信息

关键词： Target tracking Broad learning system Selective search algorithm Multi-cue tracking Tracking adaptability