检索结果-南通市图书馆

Metasurface-based nanoprinting: principle, design and advances

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Opto-Electronic Science 2022年第10期1卷 1-41页

作者： Rao Fu Kuixian Chen Zile Li Shaohua Yu guoxing zheng School of Electronic Information and School of Microelectronics Wuhan UniversityWuhan 430072China Peng Cheng Laboratory Shenzhen 518055China Wuhan Institute of Quantum Technology Wuhan 430206China Hubei Luojia Laboratory Wuhan 430079China

Metasurface-based nanoprinting(meta-nanoprinting)has fully demonstrated its advantages in ultrahigh-density gray-scale/color image recording and display.A typical meta-nanoprinting device usually has image resolutions reaching 80 k dots per inch(dpi),far exceeding conventional technology such as gravure printing(typ.5 k dpi).Besides,by fully exploit-ing the design degrees of freedom of nanostructured metasurfaces,meta-nanoprinting has been developed from previ-ous single-channel to multiple-channels,to current multifunctional integration or even dynamic display.In this review,we overview the development of meta-nanoprinting,including the physics of nanoprinting to manipulate optical amplitude and spectrum,single-functional meta-nanoprinting,multichannel meta-nanoprinting,dynamic meta-nanoprinting and mul-tifunctional metasurface integrating nanoprinting with holography or metalens,etc.Applications of meta-nanoprinting such as image display,vortex beam generation,information decoding and hiding,information encryption,high-density optical storage and optical anti-counterfeiting have also been discussed.Finally,we conclude the opportunities and chal-lenges/perspectives in this rapidly developing research field of meta-nanoprinting.

关键词： metasurface nanoprinting structural-color hologram multifunctional device

Malus-metasurface-assisted polarization multiplexing

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

Light(Science & Applications) 2020年第1期9卷 1038-1046页

作者： Liangui Deng Juan Deng Zhiqiang Guan Jin Tao Yang Chen Yan Yang Daxiao Zhang Jibo Tang Zhongyang Li Zile Li Shaohua Yu guoxing zheng Hongxing Xu Cheng-Wei Qiu Shuang Zhang Electronic Information School Wuhan University430072 WuhanChina NOEIC State Key Laboratory of Optical Communication Technologies and NetworksWuhan Research Institute of Posts&Telecommunications430074 WuhanChina School of Physics and Technology Wuhan University430072 WuhanChina Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore Integrated Circuit Advanced Process Center Institute of MicroelectronicsChinese Academy of Sciences100029 BeijingChina School of Physics&Astronomy University of BirminghamBirmingham B152TTUK

Polarization optics plays a pivotal role in diffractive,refractive,and emerging flat optics,and has been widely employed in contemporary optical industries and daily life.Advanced polarization manipulation leads to robust control of the polarization direction of light.Nevertheless,polarization control has been studied largely independent of the phase or intensity of light.Here,we propose and experimentally validate a Malus-metasurface-assisted paradigm to enable simultaneous and independent control of the intensity and phase properties of light simply by polarization modulation.The orientation degeneracy of the classical Malus’s law implies a new degree of freedom and enables us to establish a one-to-many mapping strategy for designing anisotropic plasmonic nanostructures to engineer the Pancharatnam–Berry phase profile,while keeping the continuous intensity modulation unchanged.The proposed Malus metadevice can thus generate a near-field greyscale pattern,and project an independent far-field holographic image using an ultrathin and single-sized metasurface.This concept opens up distinct dimensions for conventional polarization optics,which allows one to merge the functionality of phase manipulation into an amplitudemanipulation-assisted optical component to form a multifunctional nano-optical device without increasing the complexity of the nanostructures.It can empower advanced applications in information multiplexing and encryption,anti-counterfeiting,dual-channel display for virtual/augmented reality,and many other related fields.

关键词： optics enable unchanged

High-speed, large-area and high-precision fabrication of aspheric micro-lens array based on 12-bit direct laser writing lithography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Advanced Manufacturing) 2022年第4期3卷 50-60页

作者： Shiyi Luan Fei Peng guoxing zheng Chengqun Gui Yi Song Sheng Liu School of Power and Mechanical Engineering Wuhan UniversityWuhan 430072China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China Electronic Information School Wuhan UniversityWuhan 430072China Wuhan Institute of Quantum Technology Wuhan 430206China

Aspheric micro-lens array(AMLA),featured with low dispersion and diffraction-limited imaging quality,plays an important role in advanced optical imaging.Ideally,the fabrication of commercially applicable AMLAs should feature low cost,high precision,large area and high speed.However,these criteria have been achieved only partially with conventional fabrication process.Herein,we demonstrate the fabrication and characterization of AMLAs based on 12-bit direct laser writing lithography,which exhibits a high fabrication speed,large area,perfect lens shape control via a three-dimensional optical proximity correction and average surface roughness lower than 6 nm.In particular,the AMLAs can be flexibly designed with customized filling factor and arbitrary off-axis operation for each single micro-lens,and the proposed pattern transfer approach with polydimethylsiloxane(PDMS)suggests a low-cost way for mass manufacturing.An auto-stereoscopic-display flexible thin film with excellent display effect has been prepared by using above technology,which exhibits a new way to provide flexible auto-stereoscopic-display at low cost.In brief,the demonstrated fabrication of AMLAs based on direct laser writing lithography reduce the complexity of AMLA fabrication while significantly increasing their performance,suggesting a new route for high-quality three-dimentional optical manufacturing towards simplified fabrication process,high precision and large scale.

关键词： Aspheric micro-lens array Large-area fabrication Sub 6 nm roughness 12-bit direct laser writing lithography

Full-space Cloud of Random Points with a Scrambling Metasurface

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2018年第1期7卷 467-474页

作者： Zile Li Qi Dai Muhammad Q.Mehmood Guangwei Hu Boris Luk’yanchuk Jin Tao Chenglong Hao Inki Kim Heonyeong Jeong guoxing zheng Shaohua Yu Andrea Alù Junsuk Rho Cheng-Wei Qiu School of Electronic Information Wuhan UniversityWuhan 430072China NOEIC State Key Laboratory of Optical Communication Technologies and NetworksWuhan Research Institute of Posts and TelecommunicationsWuhan 430074China Department of Electrical Engineering Information Technology University of the PunjabFerozpur Road54000 LahorePakistan Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore Advanced Science Research Center City University of New YorkNew York 10031USA Data Storage Institute A*STAR(Agency for ScienceTechnology and Research)2 Fusionopolis Way#08-01Innovis 138634Singapore Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang 37673Republic of Korea

With the rapid progress in computer science,including artificial intelligence,big data and cloud computing,full-space spot generation can be pivotal to many practical applications,such as facial recognition,motion detection,augmented reality,etc.These opportunities may be achieved by using diffractive optical elements(DOEs)or light detection and ranging(LIDAR).However,DOEs suffer from intrinsic limitations,such as demanding depth-controlled fabrication techniques,large thicknesses(more than the wavelength),Lambertian operation only in half space,etc.LIDAR nevertheless relies on complex and bulky scanning systems,which hinders the miniaturization of the spot generator.Here,inspired by a Lambertian scatterer,we report a Hermitian-conjugate metasurface scrambling the incident light to a cloud of random points in full space with compressed information density,functioning in both transmission and reflection spaces.Over 4044 random spots are experimentally observed in the entire space,covering angles at nearly 90°.Our scrambling metasurface is made of amorphous silicon with a uniform subwavelength height,a nearly continuous phase coverage,a lightweight,flexible design,and low-heat dissipation.Thus,it may be mass produced by and integrated into existing semiconductor foundry designs.Our work opens important directions for emerging 3D recognition sensors,such as motion sensing,facial recognition,and other applications.

关键词： conjugate directions amorphous

Zero-order-free meta-holograms in a broadband visible range

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonics Research 2020年第5期8卷 723-728页

作者： RAO FU LIANGUI DENG ZHIQIANG GUAN SHENG CHANG JIN TAO ZILE LI guoxing zheng Electronic Information School Wuhan UniversityWuhan 430072China NOEIC State Key Laboratory of Optical Communication Technologies and NetworksWuhan Research Institute of Posts and TelecommunicationsWuhan 430074China School of Physics and Technology Center for Nanoscience and Nanotechnologyand Key Laboratory of Artificial Micro-and Nano-structures of Ministry of EducationWuhan UniversityWuhan 430072China

The unwanted zero-order light accompanied by the birth of diffractive optical elements and caused mainly by fabrication errors and wavelength variations is a key factor that deteriorates the performance of diffraction-related optical devices such as holograms,gratings,beam shapers,beam splitters,optical diffusers,and diffractive microlenses.Here,inspired by the unique characteristic of nano-polarizer-based metasurfaces for both positive and negative amplitude modulation of incident light,we propose a general design paradigm to eliminate zero-order diffraction without burdening the metasurface design and fabrication.The experimentally demonstrated metahologram,which projects a holographic image with a wide angle of 70°×70°in the for field,presents a very low zero-order intensity(only 0.7%of the total energy of the reconstructed image).More importantly,the zero-orderfree meta-hologram has a large tolerance limit for wavelength variations(under a broadband illumination from520 to 660 nm),which brings important technical advances.The strategy proposed could significantly relieve the fabrication difficulty of metasurfaces and be viable for various diffractive-optics-related applications includingholography,laser beam shaping,optical data storage,vortex beam generation,and so on.

关键词： visible illumination holographic

Serological Prevalence Survey Among the High-Risk Populations of Brucellosis-Endemic Areas-China,2019−2020

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

China CDC weekly 2021年第6期3卷 101-105页

作者： Shenghong Lin Zhe Wang Xinrong Liu Aizhi Yu Muhtar·Hasan Jiensi·Bayidawulieti Haitan·Aximujiang Ruiqing Li guoxing zheng Xinwang Liang Xiaoling Fan Biqiao Hou Xiaolong Fan Dilxat·Abuliti Lusha Shi Cuihong Zhang Yifei Wang Pengjing Ning Caixiong Liu Zhongjie Li Liping Wang Division of Infectious Disease Key Laboratory of Surveillance and Early Warning on Infectious DiseaseChina Center for Disease Control and PreventionBeijingChina Hangzhou Center for Disease Control and Prevention HangzhouZhejiangChina Datong Center for Disease Control and Prevention DatongShanxiChina Huocheng Center for Disease Control and Prevention YiliXinjiangChina Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention UrumqiXinjiangChina Yili Kazakh Autonomous Prefecture Center for Disease Control and Prevention YiliXinjiangChina Yanggao Center for Disease Control and Prevention DatongShanxiChina Zuoyun Center for Disease Control and Prevention DatongShanxiChina Hunyuan Center for Disease Control and Prevention DatongShanxiChina

What is already known about this topic?Timely screening of high-risk population is important to improve the early detection of brucellosis among the endemic areas during the high incidence seasons,which is also required by the National Brucellosis Prevention and Control Plan(2016–2020)(NBPCP).What is added by this report?Seroepidemiological characteristics of brucellosis in high-risk populations were obtained and special occupational populations were found.The seroprevalence of brucellosis has been decreasing compared with that reported in the recent years due to the ongoing implementation of control measures in endemic areas.What are the implications for public health practice?Special occupational populations could be promptly detected using routine screening,which makes it possible to initiate standardized treatment for infected patients as early as possible.It also reminds us to pay attention to special occupational populations to improve their knowledge of brucellosis and reduce the risk of infection.

关键词： Population Brucellosis incidence

Brucellosis Knowledge and Personal Protective Equipment Usage Among High-Risk Populations in Brucellosis-Endemic Areas-China,2019−2020

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China CDC weekly 2021年第6期3卷 106-109页

作者： Zhe Wang Shenghong Lin Xinrong Liu Aizhi Yu Muhtar·Hasan Jiensi·Bayidawulieti Haitan·Aximujiang Ruiqing Li guoxing zheng Xinwang Liang Xiaoling Fan Biqiao Hou Xiaolong Fan Dilxat·Abuliti Lusha Shi Cuihong Zhang Yifei Wang Pengjing Ning Caixiong Liu Zhongjie Li Liping Wang Hangzhou Center for Disease Control and Prevention HangzhouZhejiangChina Division of Infectious Disease Key Laboratory of Surveillance and Early Warning on Infectious DiseaseChinese Center for Disease Control and PreventionBeijing China Datong Center for Disease Control and Prevention DatongShanxiChina Huocheng Center for Disease Control and Prevention YiliXinjiangChina Xinjiang Uygur Autonomous Region Center for Disease Control and Prevention UrumqiXinjiang Uygur Autonomous RegionChina Yili Kazakh Autonomous Prefecture Center for Disease Control and Prevention YiliXinjiangChina Yanggao Center for Disease Control and Prevention DatongShanxiChina Zuoyun Center for Disease Control and Prevention DatongShanxiChina Hunyuan Center for Disease Control and Prevention DatongShanxiChina

What is already known about this topic?According to the National Brucellosis Prevention and Control Plan(2016–2020)(NBPCP),the awareness rate of high-risk populations in brucellosis-endemic areas should reach 90%by 2020.But the updated results have not been reported.What is added by this report?This report determined the awareness rate of brucellosis(17.74%),utilization of personal protective equipment(PPE)(20.13%),and their relationship with seroprevalence,which provides evidence for the effectiveness of the implementation of NBPCP.What are the implications for public health practice?The results suggest that health education should be conducted for high-risk populations to improve their brucellosis and protection knowledge.

关键词： Population Brucellosis

旋流式井下二次油水分离同井注采技术适用性分析

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

石油石化节能与计量 2024年第6期14卷 1-5页

作者：彭永刚郑国兴郑学成王洪海周广玲大庆油田有限责任公司采油工艺研究院

针对含水率已达99%、超过经济开采极限的采油井,为进一步降低地面产出液量,在旋流式井下一次油水分离同井注采技术基础上,通过采用井下水力旋流器串联的方式,将采出液在井下再浓缩,形成旋流式井下二次油水分离同井注采技术。室内实验表... 详细信息

针对含水率已达99%、超过经济开采极限的采油井,为进一步降低地面产出液量,在旋流式井下一次油水分离同井注采技术基础上,通过采用井下水力旋流器串联的方式,将采出液在井下再浓缩,形成旋流式井下二次油水分离同井注采技术。室内实验表明,两个水力旋流器串联后,分流比在15%~45%时,最大分离效率达到98.5%。通过现场试验,验证了旋流式井下二次油水分离同井注采技术的可行性,可将地面日产液量降幅提高至85%以上,实现了因特高含水关停的井组再利用,提高了油井采收率,为特高含水油田后期经济、有效开发探索一种新的模式。

关键词：同井注采旋流式井下二次油水分离分离效率日产液量

TMEM43-S358L mutation enhances NF-κBTGFp signal cascade in arrhythmogenic right ventricular dysplasia/cardiomyopathy

维普期刊数据库博看期刊

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

Protein & Cell 2019年第2期10卷 104-119页

作者： guoxing zheng Changying Jiang Yulin Li Dandan Yang Youcai Ma Bing Zhang Xuan Li Pei Zhang Xiaoyu Hu Xueqiang Zhao Jie Du Xin Lin Tsinghua University-Peking University Joint Center for Life Sciences Beijing 100084China Institute for Immunology Department of Basic Medical SciencesSchool of MedicineTsinghua UniversityBeijing 100084China The 7th Affiliated Hospital of Sun Yat-Sen University ShenzhenGuangdong 510275China Department of Molecular and Cellular Oncology The University of TexasMD Anderson Cancer CenterHoustonTX 77030USA Beijing Anzhen Hospital Capital Medical UniversityThe Key Laboratory of Remodeling-Related Cardiovascular DiseasesMinistry of EducationBeijing Collaborative Innovation Center for Cardiovascular DisordersBeijing Institute of HeartLung&Blood Vessel DiseaseBeijing 100029China

Arrhythmogenic right ventricular dysplasia/cardiomyopathy(ARVD/C)is a genetic cardiac muscle disease that accounts for approximately 30%sudden cardiac death in young adults.The Ser358Leu mutation of transmembrane protein 43(TMEM43)was commonly identified in the patients of highly lethal and fully penetrant ARVD subtype,ARVD5.Here,we generated TMEM43 S358L mouse to explore the underlying mechanism.This mouse strain showed the classic patholo.gies of ARVD patients,including structural abnormalities and cardiac fibrofatty.TMEM43 S358L mutation led to hyper-activated nuclear factor kB(NFkB)activation in heart tissues and primary cardiomy.ocyte cells.Importantly,this hyper activation of NF-κB directly drove the expression of pro-fibrotic gene,transforming growth factor beta(TGFβ),and enhanced downstream signal,indicating that TMEM43 S358L mutation up-regulates NF-κB-TGFβ signal cascade during ARVD cardiac fibrosis.Our study partially reveals the regulatory mechanism of ARVD development.

关键词： TMEM43 ARVD NF-κB TGFβ fibrosis knock-in mouse