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| 1 | Concise and efficient direct-view generation of arbitrary cylindrical vector beams by a vortex half-wave plate显示文摘A concise, efficient, and practical direct-view scheme is presented to generate arbitrary cylindrical vector(CV)beams, including CV beams, vortex beams, and cylindrical vector vortex(CVV) beams, by a vortex half-wave plate(VHP). Six kinds of first-order and other high-order CV beams, such as azimuthally polarized(AP) beams, antivortex radial polarization mode beams, and three-order AP beams, are formed by simply rotating a half-wave plate. The Stokes parameters and double-slit interference of multitype CV beams are investigated in detail.The polarization parameters, including degree of polarization, polarization azimuth, and ellipticity, are obtained,which demonstrates the efficient generation of CV beams. In addition, the double-slit interference experiment is introduced in the setup, and fringe misplacement and tilt appear for CVV beams, in which the misplacement number M is 2P+1 for P ≤ 2 and 2P-1 for P ≥ 3, where P is the polarization order number, and the fringe tilt offset is positively related to the topological charge number l of CVV beams. In addition, new types of VHPs can be formed by cascading two or more VHPs when the types of available VHPs are limited, assisting in more flexible generation of multitype CV beams. It is experimentally demonstrated that arbitrary CV beams with high quality are effectively achieved by the proposed setup, and the double-slit interference method can be utilized to determine and analyze CV beams rapidly and concisely by practical performance, which shows the potential to be implemented as a commercial device. | JUNLI QI WEIHUA WANG BO SHI HUI ZHANG YANAN SHEN HAIFEI DENG WENJING PU XIN LIU HUIHUI SHAN XIAOMIN MA LIANQIANG ZHANG WEI LU MEICHENG FU XIUJIAN LI | 2021 | Photonics Research2021，9，5： | 4 |
| 2 | Insights into electrochemical nitrogen reduction reaction mechanisms:Combined effect of single transition-metal and boron atom显示文摘Developing single-atom catalysts(SACs) for electrochemical devices is a frontier in energy conversion.The comparison of stability,activity and selectivity between various single atoms is one of the main research focuses in SACs.However,the in-depth understanding of the role that the coordination atoms of single atom play in the catalytic process is lacking.Herein,we proposed a graphene-like boroncarbon-nitride(BCN) monolayer as the support of single metal atom.The electrocatalytic nitrogen reduction reaction(eNRR) performances of 3 d,4 d transition metal(TM) atoms embedded in defective BCN were systematically investigated by means of density functional theory(DFT) computations.Our study shows that the TM-to-N and B-to-N π-back bonding can contribute to the activation of N_(2).Importantly,a combined effect is revealed between single TM atom and boron atom on eNRR:TM atom enhances the nitrogen reduction process especially in facilitating the N_(2) adsorption and the NH3 desorption,while boron atom modulates the bonding strength of key intermediates by balancing the charged species.Furthermore,Nb@BN3 possesses the highest electrocata lytic activity with limiting potential of-0.49 V,and exhibits a high selectivity for nitrogen reduction reaction(NRR) to ammonia compared with hydrogen evolution reaction(HER).As such,this work can stimulate a research doorway for designing multi-active sites of the anchored single atoms and the innate atoms of substrate based on the mechanistic insights to guide future eNRR research. | Xingzhu Chen Wee-Jun Ong Xiujian Zhao Peng Zhang Neng Li | 2021 | Journal of Energy Chemistry2021，30，7： | 3 |
| 3 | Flexible and wearable BaTiO_(3)/polyacrylonitrile-based piezoelectric sensor for human posture monitoring显示文摘Tactile sensors are essential components of wearable electronic devices,but there are still various problems in terms of energy supply,flexibility and skin adaptability.In this paper,we report a self-powered flexible tactile sensor(FTS)mainly composed of a BaTiO_(3)/polyacrylonitrile/Ecoflex(BTO/PAN/Ecoflex)composite film,which can be used for dynamically monitoring human plantar pressure,posture and other physiological and motion parameters.Combining the synergistic piezoelectric properties of PAN and BTO,the output voltage/current of the BTO/PAN/Ecoflex composite film is 4.5/5.8 times that of the BTO/Ecoflex composite film,with maximum instantaneous power that can reach up to 3.375μW.Under the action of external pressure stress,the FTS can reach a normalized voltage sensitivity and voltage linearity of 0.54 V/N and 0.98,respectively.Furthermore,a human-machine interaction test system is built,which can display the stress changes of human body monitoring parts in real time according to voltage changes and different color assignments.The developed human-machine interaction test system provides a new idea for the diagnosis of flatfoot and other medical diseases.Hence,this work proposes new FTSs that use a BTO/PAN/Ecoflex composite film with high sensitivity and great output performance,thus exhibiting immense potential application prospects in medical research,personalized recognition and human-machine interaction. | MU JiLiang XIAN Shuai YU JunBin LI ZhengYang ZHAO JuanHong ZHONG JiXin HAN XiaoTao HOU XiaoJuan HE Jian CHOU XiuJian | 2022 | Science China(Technological Sciences)2022，65，4： | 3 |
| 4 | A static-dynamic energy harvester for a self-powered ocean environment monitoring application显示文摘Ocean intelligent buoy is important for ocean environment monitoring.With the increase of requisite sensors and transportable data,a long power supply has become a problem to be solved urgently.In this work,a hybrid nanogenerator integrating triboelectric,piezoelectric,electromagnetic,photovoltaic,and thermotropic units is proposed to maximize ocean ambient energy harvesting,which includes static energy(solar and thermal energy)and dynamic energy(wave energy).Compared with a device with a single energy conversion mechanism,this structural design breaks the limit of harvesting time and natural conditions during the energy harvesting process,thereby increasing the harvested energy.Static energy harvesting is realized by the thermoelectric(TG)and photovoltaic(PV)units located inside the device and the PV unit attached to the device surface.Results show that the maximum open-circuit voltage and short-circuit current are 5 V and 41 mA in the external PV and 1.33 V and 49 mA in the internal PV under 30000 Lux illumination,respectively.The open-circuit voltage and short-circuit current of the TG unit are 5 V and 15 m A,respectively.The core component of the dynamic generation unit is the gimbal used to harvest wave energy by the triboelectric nanogenerator(TENG),piezoelectric generator(PENG),and electromagnetic generator.When the frequency is 2.4 Hz,the maximum peak-to-peak power of the TENG,PENG,and EMG are 0.25,1.58,and 13.8 mW,respectively.Finally,an intelligent ocean buoy is fabricated by the integration of an energy harvester,a power management circuit,sensors,a microcontroller,and a wireless communication module.Driven by static and dynamic energy,temperature signal,humidity signal,GPS signal,and sound signal are sent to the receiving terminal wirelessly.The ocean energy harvester proposed in this work is of great significance for ocean energy harvesting and ocean wireless monitoring systems. | XUE Feng CHEN Liang LI ChunCheng REN Jing YU JunBin HOU XiaoJuan GENG WenPing MU JiLiang HE Jian CHOU XiuJian | 2022 | Science China(Technological Sciences)2022，65，4： | 2 |
| 5 | Robust superamphiphobic coatings with gradient and hierarchical architecture and excellent anti-flashover performances显示文摘Biomimetic superhydrophobic(SH)coatings have emerged as a promising alternative to traditional room temperature vulcanizing(RTV)silicone rubber coatings for improving the flashover strength of insulators.However,organic contamination occurs in outdoor applications and thus a superamphiphobic(SAP)surface is more desirable but not yet reported for improving flashover performance.Herein,we developed a novel anti-flashover technique by fabricating robust SAP coating with unique gradient and micro-nanoscale hierarchical architecture.The SAP coating was fabricated by sequentially spray-depositing a resin-based primer and a silica-based topcoat on substrates(i.e.,glass slides and insulators).The primer not only functions as an adhesive offering strong adhesion to the substrate but also offers a micromastoid-like structure facilitating the subsequent formation of hierarchical micro-nanostructure.The appropriate spraying pressure leads to a diffusion of the fluorocarbon-modified silica nanoparticles into the primer to form a unique gradient structure,by analogy to inserting bullets into a wood.These features render the SAP coating excellent robustness with strong abrasive resistance,excellent ultraviolet(UV)resistance,and excellent chemical and thermal stability.Pollution flashover property of the SAP coating was explored and compared with that of SH and RTV specimens,from which a novel organic-contamination model to evaluate the flashover performance was proposed.The coated SAP glass insulator demonstrated 42.9%pollution flashover voltage improvement than RTV-coated insulator.These stated unique features reveal the convincing potential of the present SAP coatings to be applied for not only outdoor transmission line insulators for antiflashover but also other fields for self-cleaning,anti-fouling,and anti-icing. | Yi Xie Wei Xiong Shefiu Kareem Chuxiong Qiu Yongfei Hu Ivan PParkin Shengwu Wang Huayun Wang Junwu Chen Lee Li Zhi Chen Huajun Sun Xiujian Zhao | 2022 | Nano Research2022，15，8： | 2 |
| 6 | Effects of third-order dispersion on temporal soliton compression in dispersion-engineered silicon photonic crystal waveguides显示文摘High-order temporal soliton compression in dispersion-engineered silicon photonic crystal waveguides will play an important role in future integrated photonic circuits compatible with complementary metal–oxide–semiconductors.Here,we report the physical mechanisms of high-order temporal soliton compression affected by third-order dispersion(TOD)combined with free carrier dispersion(FCD)in a dispersion engineered silicon photonic crystal waveguide with wideband low anomalous dispersion.Through numerical temporal soliton evolution analysis,we report what we believe is the first demonstration of the dual opposite effects of TOD on temporal soliton compression,which are strengthening or weakening through two different physical mechanisms,not only depending on the sign of TOD but also the relative magnitude of TOD-induced equivalent group velocity dispersion(GVD)β2,equto the original GVDβ2.We further find that FCD counteracts the effects of negative TOD on the soliton compression,while it reinforces the effects of positive TOD on the soliton compression.These results will help to design suitable dispersion-engineered silicon waveguides for superior on-chip temporal pulse compression in optical communications and processing application fields. | JIALI LIAO YANG GAO YANLING SUN LIN MA ZHENZHONG LU XIUJIAN LI | 2020 | Photonics Research2020，8，5： | 2 |
| 7 | Electrodeposited and selenized CIGS thin films for solar cells显示文摘 | Donglin Xia Jangzhuang Li Man Xu Xiujian Zhao | 2007 | Journal of Non-Crystalline Solids2007，，12： | 2 |
| 8 | Minimum variance unbiased subpixel centroid estimation of point image limited by photon shot noise 显示文摘 | Jia Hua Yang Jiankun Li Xiujian | 2010 | Journal of the Optical Society of America A2010，27，9： | 1 |
| 9 | Real-time dynamics and cross-correlation gating spectroscopy of free-carrier Drude slow-light solitons显示文摘Optical solitons—stable waves balancing delicately between nonlinearities and dispersive effects—have advanced the field of ultrafast optics and dynamics,with contributions spanning from supercontinuum generation to soliton fission,optical event horizons,Hawking radiation and optical rogue waves,among others.Here,we investigate picojoule soliton dynamics in silicon slow-light,photonic-bandgap waveguides under the influence of Drude-modeled,free-carrier-induced nonlinear effects.Using real-time and single-shot amplified dispersive Fourier transform spectroscopy simultaneously with high-fidelity cross-correlation frequency resolved optical gating at femtojoule sensitivity and femtosecond resolution,we examine the soliton stability limits,the soliton dynamics including free-carrier quartic slow-light scaling and acceleration,and the Drude electron–hole plasma-induced perturbations in the Cherenkov radiation and modulation instability.Our real-time single-shot and time-averaged cross-correlation measurements are matched with our detailed theoretical modeling,examining the reduced group velocity free-carrier kinetics on solitons at the picojoule scale. | Heng Zhou Shu-Wei Huang Xiujian Li James F McMillan Chi Zhang Kenneth Kin-Yip Wong Mingbin Yu Guo-Qiang Lo Dim-Lee Kwong Kun Qiu Chee Wei Wong | 2017 | Light(Science & Applications)2017，6，1： | 1 |
| 10 | Laser-induced inverted patterning of nanocrystals embedded glass for micro-light-emitting diodes显示文摘High resolution and full-color light-emitting diodes require precise and efficient patterning of light-emitting structures containing quantum dots or nanocrystals.We report light-induced inverted patterning of nanocrystals in glasses for micro-light-emitting diodes.Ultrafast laser pulse induces structural destruction and amorphization of nanocrystals in glasses,forming inverted luminescent patterns.High-throughput patterning of micrometer-scale,thermally stable,and highly photoluminescent structures in nanocrystals embedded glass is realized.This patterning method provides a novel way to fabricate high-performance and ultrahigh-resolution color conversion layers for micrometer-scale light-emitting diodes. | Yuzhou Hu Ying Ye Wenchao Zhang Kai Li Yao Zhou Yudong Zhang Zhao Deng Jianjun Han Xiujian Zhao Chao Liu | 2023 | Journal of Materials Science & Technology2023，，19： | 1 |
| 11 | Nove1 approach for laboratory calibration of star tracker 显示文摘 | LIU Haibo LI Xiujian TAN Jiehun | 2010 | Optical Engi- neering2010，49，73： | 1 |
| 12 | p38 and ERK, but not JNK, are involved in copper-induced apoptosis in cultured cerebellar granule neurons显示文摘 | Xiaohong Chen Xiujian Lan Suilin Mo Jian Qin Wenming Li Peiqing Liu Yifan Han Rongbiao Pi | 2009 | Biochemical and Biophysical Research Communications2009，，4： | 1 |
| 13 | Ultra-compact titanium dioxide micro-ring resonators with sub-10-μm radius for on-chip photonics显示文摘Microring resonators (MRRs) with ultracompact footprints are preferred for enhancing the light-matter interactions to benefit various applications. Here,ultracompact titanium dioxide (TiO2) MRRs with sub-10-μm radii are experimentally demonstrated. Thanks to the large refractive index of TiO_(2),the quality factors up to -7.9×10^(4) and -4.4×10^(4)are achieved for TiO_(2) MRRs with radii of 10μm and 6μm,respectively,which result in large nonlinear power enhancement factors (>113) and large Purcell factors (>56). The four-wave mixing(FWM) measurements indicate that,compared to the large MRR,the FWM conversion efficiency of the ultracompact TiO2 MRRs can be greatly improved (e.g.,-25 dB versus-31 dB),a harbinger of significant superiorities. Demonstrations in this work provide more arguments for the TiO_(2) waveguides as a promising platform for various on-chip photonic devices. | MEICHENG FU YI ZHENG GAOYUAN LI WENJUN YI JUNLI QI SHAOJIE YIN XIUJIAN LI XIAOWEI GUAN | 2021 | Photonics Research2021，9，7： | 1 |
| 14 | CTAB-assinted synthesis of mesoporous F-N-codoped TiO2 powders with high visible light driven catalytic activity and adsorption capacity显示文摘 | XIE Yi ZHAO Xiujian LI Yuanzhi | 2008 | Journal of Solid State Chemistry2008，181，8： | 1 |
| 15 | Low-temperature preparation and visible-light-induced catalytic activity of anatase F-N-codoped TiO2显示文摘 | Xie Yi Li Yuanzhi Zhao Xiujian | 2007 | Journal of Molecular Catalysis A:Chemical2007，277，12： | 1 |
| 16 | Apo ε4 allele increases the risk for exercise-induced silent myocardial isehemia in non-insulin-dependent diabetes mellitus显示文摘 | Xiang Guangda Xia Bangshun Li Xiujian | 1999 | Athero6eleresis1999，147，2： | 1 |
| 17 | Apo ε4 allele increases the risk for exercise-induced silent myocardial isehemia in non-insulin-dependent diabetes mellitus显示文摘 | Xiang Guangda Xia Bangshun Li Xiujian | 1999 | Atherosclerosis1999，147，2： | 1 |
| 18 | Robust Control System Design for Vehicle Stability Considering the Roll Dynamics 显示文摘 | Xiujian Yang Xitao Li Nan Kang | 2011 | Energy Procedia2011，13，： | 1 |
| 19 | A non-contact flexible pyroelectric sensor for wireless physiological monitoring system显示文摘Recently,human physiological information wireless monitoring in real-time is particularly important in health analysis.As a solution,a non-contact wireless physiological monitoring system based on pyroelectric generator(Py G),whose core part consists of a wireless circuit processing module and a polyvinylidene fluoride(PVDF)film,has been successfully designed.Owing to the temperature change under the stimulation of an external heat source,the output voltage of the Py G self-powered flexible sensor increases with the heat source temperature variation in the range of 295–355 K.Furthermore,based on the natural temperature oscillation between the living body and surrounding environment,the sensor can realize human physiological information assessment,for example,temperature monitoring of the palms,fingers,respiratory heat signals from mouth or nose or non-contact spatial heat mapping recognition of finger movement via sensor array.On this basis,a portable wireless monitoring system was designed by integrating the intelligent sensor with a signal conditioning circuit,data conversion storage module,Bluetooth module,and power module.This system can acquire real-time human oral or nasal breathing signals in the personal mobile app to evaluate the physiological state of individuals.Additionally,the wireless monitoring system can be activated within 10 m,demonstrating the application of Py G sensors in remote data transmission. | Jian HE Sen LI Xiaojuan HOU Yongjun ZHOU Hao LI Min CUI Tao GUO Xiangdong WANG Jiliang MU Wenping GENG Xiujian CHOU | 2022 | Science China(Information Sciences)2022，65，2： | 0 |
| 20 | Efficient ultrafast laser writing with appropriate polarization显示文摘Appropriate polarization utilization makes the electric field vector direction and the statistically oriented localized states suitable for enhancing light-matter interactions so as to improve the efficiency of ultrafast laser writing,which will remarkably reduce the pulse energy and increase the processing speed for high density optical data storage,as well as manufacturing three-dimensional integrated optics and geometric phase optical elements. | Xiujian Li Wenke Xie | 2023 | Light(Science & Applications)2023，12，6： | 0 |
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