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| 1 | Broadband achromatic metalens in terahertz regime显示文摘Achromatic focusing is essential for broadband operation, which has recently been realised from visible to infrared wavelengths using a metasurface. Similarly, multi-terahertz functional devices can be encoded in a desired metasurface phase profile. However, metalenses suffer from larger chromatic aberrations because of the intrinsic dispersion of each unit element. Here, we propose an achromatic metalens with C-shaped unit elements working from 0.3 to 0.8 THz with a bandwidth of approximately 91% over the centre frequency. The designed metalens possesses a high working efficiency of more than 68% at the peak and a relatively high numerical aperture of 0.385. We further demonstrate the robustness of our Cshaped metalens, considering lateral shape deformations and deviations in the etching depth. Our metalens design opens an avenue for future applications of terahertz meta-devices in spectroscopy, time-offlight tomography and hyperspectral imaging systems. | Qingqing Cheng Meilin Ma Dong Yu Zhixiong Shen Jingya Xie Juncheng Wang Nianxi Xu Hanming Guo Wei Hu Shuming Wang Tao Li Songlin Zhuang | 2019 | Science Bulletin2019,64,20: | 16 |
| 2 | Isotherm Equation Study of F Adsorbed from Water Solution by Fe2(SO4)3-modified Granular Activated Alumina显示文摘The adsorption equilibrium of a fluoride solution on 1-2 mm granular activated alumina modified by Fe2(SO4)3 solution was investigated.The experiments were conducted using a wide range of initial fluoride concentrations(0.5 to 180 mg·L-1 at pH~7.0) and an adsorbent dose of 1.0 g·L-1.The application of Langmuir and Freundlich adsorption isotherm models(linear and nonlinear forms) generally showed that a single Langmuir or Freundlich equation cannot fit the entire concentration gap.Experimental data on low equilibrium concentrations(0.1 to 5.0 mg·L-1) was in line with both Langmuir and Freundlich isotherm models,whereas that of high equilibrium concentrations(5.0 to 150 mg·L-1) was more in line with the Freundlich isotherm model.A new LangmuirFreundlich function was used for the entire concentration gap,as well as for low and high concentrations. | DANG Dan DING Wenming CHENG Anguo LIU Shuming ZHANG Xu | 2011 | Chinese Journal of Chemical Engineering2011,19,4: | 5 |
| 3 | Effects of Curing Temperature on Rheological Behaviour and Compressive Strength of Cement Containing GGBFS显示文摘The viscoplasticity and compressive strength of cement with high erosion performance were studied. The influences of curing temperature and content of ground granulated blast furnace slag(GGBFS) on these performances of the medium heat cement(including high iron and low calcium phase) were also investigated. The results indicate that the medium heat cement with high iron phase can maintain better fluidity and low temperature sensitivity than that of ordinary Portland cement at high temperature. GGBFS can play an important role in improving the fluidity and stability of the slurry, and avoid the cement setting and hardening prematurely at high temperatures. The microstructure analysis shows that a large amount of CH with layer shape appear in the slurry. The amount of this gel layer in the slurry increased as the curing temperature elevated. The layer can make the cement stone structure more denser, so that the compressive strength of samples are enhanced in the later stage. When the medium heat cement contains 40% GGBFS, the system has the best flow performance and stability under high temperature environment, and can be applied to mass concrete with excessive internal temperature. | 陈平 ZHANG Shuming 杨华美 HU Cheng | 2019 | Journal of Wuhan University of Technology(Materials Science)2019,34,5: | 2 |
| 4 | Taking the pulse of COVID-19:a spatiotemporal perspective显示文摘The sudden outbreak of the Coronavirus disease(COVID-19)swept across the world in early 2020,triggering the lockdowns of several billion people across many countries,including China,Spain,India,the U.K.,Italy,France,Germany,Brazil,Russia,and the U.S.The transmission of the virus accelerated rapidly with the most confirmed cases in the U.S.,India,Russia,and Brazil.In response to this national and global emergency,the NSF Spatiotemporal Innovation Center brought together a taskforce of international researchers and assembled implementation strategies to rapidly respond to this crisis,for supporting research,saving lives,and protecting the health of global citizens.This perspective paper presents our collective view on the global health emergency and our effort in collecting,analyzing,and sharing relevant data on global policy and government responses,human mobility,environmental impact,socioeconomical impact;in developing research capabilities and mitigation measures with global scientists,promoting collaborative research on outbreak dynamics,and reflecting on the dynamic responses from human societies. | Chaowei Yang Dexuan Sha Qian Liu Yun Li Hai Lan Weihe Wendy Guan Tao Hu Zhenlong Li Zhiran Zhang John Hoot Thompson Zifu Wang David Wong Shiyang Ruan Manzhu Yu Douglas Richardson Luyao Zhang Ruizhi Hou You Zhoua Cheng Zhong Yifei Tian Fayez Beaini Kyla Carte Colin Flynn Wei Liu Dieter Pfoser Shuming Bao Mei Li Haoyuan Zhang Chunbo Liu Jie Jiang Shihong Du Liang Zhao Mingyue Lu Lin Li Huan Zhou Andrew Ding | 2020 | International Journal of Digital Earth2020,13,10: | 2 |
| 5 | Intelligent transportation systems: toward intelligent driver-assistance and safety warning systems 显示文摘 | Nan-Ning Zheng Shuming Tang Hong Cheng | 2004 | IEEE Intelligent Systems2004,3,: | 1 |
| 6 | High sensitive rapid visual detection of sulfadimethoxine by label-freeaptasensor显示文摘 | Ailiang Chen Xiaoling Jiang Weiwei Zhang Gang Chen Yan Zhao Tarique Muhammad Tunio Jinchuan Liu Zhenzhen Lv Cheng Li Shuming Yang | 2013 | Biosensors and Bioelectronics2013,,: | 1 |
| 7 | Experimental investigation of measurement incompatibility of mutually unbiased bases显示文摘Incompatible measurements are of fundamental importance to re-vealing the peculiar features of quantum theory,and are also use-ful resources in various quantum information tasks.In this work,we investigate the quantum incompatibility of mutually unbiased bases(MUBs)within the operational framework of quantum resource the-ory,and report an experimental validation via the task of state dis-crimination.In particular,we construct an experimentally friendly witness to detect incompatible MUBs,based on the probability of cor-rectly discriminating quantum states.Furthermore,we prove that the noise robustness of MUBs can be retrieved from violating the above witness.Finally,we experimentally test the incompatibility of MUBs of dimensionality ranging from 2 to 4,and demonstrate that it is more robust to noise,as either the dimensionality of measurements or the number of MUBs increases.Our results may aid the exploration of the essential roles of incompatible measurements in both theoretical and practical applications in quantum information. | Yu Guo Shuming Cheng Xiao-Min Hu Bi-Heng Liu Yun-Feng Huang Chuan-Feng Li Guang-Can Guo | 2023 | Chip2023,2,1: | 0 |
| 8 | Development and Achievements of Drilling Techniques in Sichuan Oil Province显示文摘DevelopmentandAchievementsofDrillingTechniquesinSichuanOilProvince¥XiaShumingandChengChangxiu(SichuanPetroleumAdininistration... | Xia Shuming and Cheng Changxiu(Sichuan Petroleum Adininistration) | 1995 | China Oil & Gas1995,2,3: | 0 |
| 9 | Controlled growth of a single carbon nanotube on an AFM probe显示文摘Carbon nanotubes(CNTs)can be used as atomic force microscopy(AFM)tips for high-resolution scanning due to their small diameter,high aspect ratio and outstanding wear resistance.However,previous approaches for fabricating CNT probes are complex and poorly controlled.In this paper,we introduce a simple method to selectively fabricate a single CNT on an AFM tip by controlling the trigger threshold to adjust the amount of growth solution attached to the tip.The yield rate is over 93%.The resulting CNT probes are suitable in length,without the need for a subsequent cutting process.We used the CNT probe to scan the complex nanostructure with a high aspect ratio,thereby solving the long-lasting problem of mapping complex nanostructures. | Biyao Cheng Shuming Yang Wei Li Shi Li Shareen Shafique Dong Wu Shengyun Ji Yu Sun Zhuangde Jiang | 2021 | Microsystems & Nanoengineering2021,7,5: | 0 |
| 10 | High resolution and high signal-to-noise ratio imaging with nearfield high-order optical signals显示文摘The properties of near-field optics have always been the focus of nano-measurement technology.The 11th order effective nearfield optical signal with an incident laser wavelength of 1,550 nm is obtained using a platinum-coated optical probe(Pt–Si probe).The experimental results show that the local electric field intensity of the Pt–Si probe is nearly 30 times higher than that of silicon probe(Si probe).Therefore,the highest 7th order near-field optical imaging results are obtained with the Pt–Si probe.Further,near-field optical imaging is performed on samples such as gold grids and carbon nanotubes using the Pt–Si probe.The measurement results show that the high-order signal has the characteristics of less background,higher signal-to-noise ratio,and resolution up to 5.7 nm. | Fei Wang Shuming Yang Shaobo Li Shuhao Zhao Biyao Cheng Chengsheng Xia | 2022 | Nano Research2022,15,9: | 0 |
| 11 | A flat-based plasmonic fiber probe for nanoimaging显示文摘The difficulty of obtaining high-intensity localized light spots for optical probes leads to their lack of good applications in nanoimaging.Here we demonstrate a Fabry–Pérot resonance flat-based plasmonic fiber probe(FPFP).The simulation results show that the probe can obtain a nanofocusing spot at the tip with the radially polarized mode.The Fabry–Pérot interference structure is used to control the plasmon propagation on the surface of the probe,it effectively improves the local spot intensity at the tip.Furthermore,the experimental results verify that the FPFP(tip curvature radius is 20 nm)prepared by chemical etching method can obtain a nanofocusing spot at the tip.The nanoimaging of the gold slit structure demonstrates the nanoimaging capability of the FPFP,the 36.9 nm slit width is clearly identified by the FPFP. | Fei Wang Shaobo Li Shuhao Zhao Ze Zhang Peirui Ji Chengsheng Xia Biyao Cheng Guofeng Zhang Shuming Yang | 2023 | Nano Research2023,16,5: | 0 |
| 12 | High-performance broadband flexible photodetector based on Gd_(3)Fe_(5)O_(12)-assisted double van der Waals heterojunctions显示文摘Flexible photodetectors are fundamental components for developing wearable systems,which can be widely used for medical detection,environmental monitoring and flexible imaging.However,compared with 3D materials,lowdimensional materials have degraded performance,a key challenge for current flexible photodetectors.Here,a highperformance broadband photodetector has been proposed and fabricated.By combining the high mobility of graphene(Gr)with the strong light–matter interactions of single-walled carbon nanotubes(SWCNTs)and molybdenum disulfide(MoS2),the flexible photodetector exhibits a greatly improved photoresponse covering the visible to near-infrared range.Additionally,a thin layer of gadolinium iron garnet(Gd_(3)Fe_(5)O_(12),GdlG)film is introduced to improve the interface of the double van der Waals heterojunctions to reduce the dark current.The SWCNT/GdIG/Gr/GdIG/MoS2 flexible photodetector exhibits a high photoresponsivity of 47.375 A/W and a high detectivity of 1.952×1012 Jones at 450 nm,a high photoresponsivity of 109.311 A/W and a high detectivity of 4.504×10^(12) Jones at 1080 nm,and good mechanical stability at room temperature.This work demonstrates the good capacity of GdIGassisted double van der Waals heterojunctions on flexible substrates and provides a new solution for constructing high-performance flexible photodetectors. | Ze Zhang Peirui Ji Shaobo Li Fei Wang Shengmei He Yiwei Cheng Shuhao Zhao Kaili Li Xiaomin Wang Yu Wang Shuming Yang | 2023 | Microsystems & Nanoengineering2023,9,4: | 0 |