A5100634619- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Plasmonic and Surface Plasmon Research
- Aerospace Engineering and Energy Systems
- Particle accelerators and beam dynamics
- Quantum Mechanics and Non-Hermitian Physics
- Particle Accelerators and Free-Electron Lasers
- Orbital Angular Momentum in Optics
- Aeolian processes and effects
- Product Development and Customization
- Icing and De-icing Technologies
- Ga2O3 and related materials
- Advanced Materials and Mechanics
- Meteorological Phenomena and Simulations
- Energy Harvesting in Wireless Networks
- Traffic control and management
- Mechanical Failure Analysis and Simulation
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Mechanical stress and fatigue analysis
- Tribology and Wear Analysis
- Terahertz technology and applications
- Advanced Neural Network Applications
- Random lasers and scattering media
Anhui Agricultural University
2025
Zhejiang University
2019-2023
Beijing Research Institute of Automation for Machinery Industry (China)
2023
Wuhan University
2023
Jinhua Academy of Agricultural Sciences
2022
Shaoxing University
2022
State Key Laboratory of Modern Optical Instruments
2019-2022
Institute of Electronics
2010-2020
Suqian University
2018-2020
Huazhong University of Science and Technology
2014
Abstract Wearable sensor has attracted a broad interesting in application prospect of human‐machine interaction (HMI). However, most sensors are assembled the shape gloves to accurately capture complex hand motion information, thereby seriously blocking complete tasks. Herein, wearable pressure based on drum‐structured triboelectric nanogenerator (DS‐TENG) is developed subtle signals for physiological signal detection, information encoding, gesture recognition, and wireless real‐time robot...
Abstract Metamaterials/metasurfaces, which have subwavelength resonating unit cells (i.e., meta‐atoms), can enable unprecedented control over the flow of light. Despite their significant progress, achieving dynamical both energy and momentum light remains a challenge. Here, mechanically tunable metawall capable either absorbing or modulating momentum, by incorporating magnetic meta‐atoms into 3D printed origami grating, is theoretically designed experimentally realized. Through mechanical...
Hyperbolic polaritons in extremely anisotropic materials have attracted intensive attention due to their exotic optical features. Recent advances reveal unprecedented dispersion engineering of polaritons, resulting twistronics for photons, canalized phonon shear and tunable topological polaritons. However, the on-demand reconfigurability especially with magnetic dispersions, is restricted by weak natural anisotropy hence remains largely unexplored. Here, we show how origami fused artificial...
A broadband low-profile high-gain folded transmitarray antenna (FTA) is proposed to generate orbital angular momentum (OAM) with circular polarization. chiral metasurface employed as the top layer function of reflecting anticipant circularly polarized (CP) incident waves while transmitting orthogonal ones. The geometric phase then introduced achieve 360° coverage transmission without affecting reflection one. To obtain a and compact planar source, <inline-formula...
A new type of a metasurface, known as continuous having only one trapezoidal antenna within super cell, is proposed. Markedly different from previously reported discrete metasurfaces multiple antennas can provide continuously varying phase response for anomalous reflection following the generalized Snell's law. The inherent spatial continuity and elimination near-field coupling among neighboring enable metasurface to achieve low-distortion, high-efficiency, ultrawide-band reflection. concept...
Abstract Electromagnetic resonances in meta‐atoms have empowered optical interfaces with unprecedented abilities wavefront manipulation. Despite the versatile applications, energy efficiency and bandwidth improvement are still theoretically constrained by dispersion feature of mesoscopic structures. Here, a nontrivial phase modulation mechanism is exposed that breaks limit electric dipolar resonances. By arranging dipoles into tilted periodic arrays, time‐reversed scattering channels...
Abstract Retroreflectors made of gradient metasurfaces have recently attracted intense interests due to their ability in reflecting incident light back its source. So far, the current retroreflectors can only flip transverse momenta photons specific incidence angles and thus limitations wide‐angle applications. Here, a switchable metagrating based retroreflector is proposed for high‐efficient spin‐locked retroreflection suppression undesired diffractions. Upon reflection, handedness waves...
β-Ga2O3 is a promising material for the development of next-generation power electronic and optoelectronic devices due to its exceptional properties, including ultrawide bandgap thermodynamic stability. Strain engineering has emerged as powerful method modulate physical properties materials been widely employed in semiconductor enhance their performance functionality. Our study focuses on effects strain β-Ga2O3. Using density functional theory, we calculated band structures electron...
Abstract Bianisotropic metasurfaces have been attracting increasing attention due to their strong capability for magneto–electric coupling manipulation on electromagnetic fields. effect is physically determined by the symmetries of structure and switching among various bianisotropic states thus difficult varying material properties. Here, we propose a reconfigurable metasurface arranging meta-atoms in Miura-ori lattice. The properties are dynamically controlled via deformation pattern, i.e.,...
Metasurfaces based on subwavelength resonators enable novel ways to manipulate the flow of light at optical interfaces. In pursuit multifunctional or reconfigurable metadevices, efficient tuning macroscopic performance with little structural/material variation remains a challenge. Here, we propose concept localized loss engineering in electromagnetic (EM) metasurfaces, showing that an ordinary symmetric retroreflector can be switched extraordinary asymmetric one by introducing absorptive...
This paper focuses on the optimising algorithms of signal timing urban intersection combined with vehicle location using platform new type wireless electronic license plate system. With traffic flow information obtained from platform, a dynamic optimisation model optimal control parameters green light time all four phases for single is constructed. Then genetic algorithm applied to obtain satisfying scheme. In simulation examples, proposed distribution method and traditional are compared....
The in-plane negative refraction of high-momentum (i.e., high- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="m1"> <mml:mrow> <mml:mi>k</mml:mi> </mml:mrow> </mml:math> ) photonic modes could enable many applications such as imaging, focusing, and waveguiding in a planar platform at deep-subwavelength scales. However, its practical implementation experiments remains elusive so far. Here we propose class hyperbolic metasurfaces, which is characterized by an...
This paper focuses on the optimising algorithms of signal timing urban intersection combined with vehicle location using platform new type wireless electronic license plate system. With traffic flow information obtained from platform, a dynamic optimisation model optimal control parameters green light time all four phases for single is constructed. Then genetic algorithm applied to obtain satisfying scheme. In simulation examples, proposed distribution method and traditional are compared....
The occurrence of internal defects is inevitable in the casting process. It affects reliability and durability products even gives rise to potential economic losses security issues. Therefore, it appears essential identify eliminate time. Deep learning algorithms can acquire more effective feature representation complex scenes. Hence, a lightweight modified DeepLabV3+ algorithm proposed with following improvements. First, ImageNet pre-trained MobileNetV2 adopted as backbone network enhance...
Using an excitonic basis, we investigate the intraband polarization, optical absorption spectra, and terahertz emission of semiconductor superlattice with density matrix theory. The Bloch oscillation is driven by dc ac electric fields. slow variation in polarization depends on field frequency. increases when frequency below When above frequency, downwards its intensity decreases. satellite structures spectra are presented. Due to dynamic localization, lines shift different field.
Quasi-static testing of the fabric material mechanically with a novel embedded strain measurement system, which aimed at mechanical analysis dynamic characteristics parachute canopy textile fiber optic technology, and using tensile tester were correlating results obtained by sensors to parameters, in calibrating system. To achieve better more consistent results, FBG sensor took part samples warp, fill, 45° directions. The tests provided traditional correlation between loads elongation...
In KTC80 tobacco cutter with domestic parts for compression bands,the slat in the top band tended to be pulled off or broken.It was found that it caused mainly by uneven force as bias travelling.Basing on three-dimensional load model analysis,a kit centering designed.The bands were automatically centered when they passed kit,and rolling contact between and roller reduced wear ensured band's normal running.The results of nine months' running indicated number failure from four times once,the...
In order to eliminate the influence caused by interference of invalid node collusion attack, obtain a more effective method for eliminating nodes, novel network is proposed in this paper based on credibility scheme. Firstly, we analysis basic structure elimination scheme and opinion distance-based reputation evaluation model (ODRE) proposed. According communication signals between concept updated. Avoid attack distance adopted implement recommended views. Based reliability concepts, nodes...
We developed here a novel embedded strain measurement system that fulfilled dynamic analysis of the characteristics parachute canopy based on fiber optics technology. As continue study canopy, series drop tests were in laboratory, and followed by field test. Sample results obtained both mode power distribution (MPD) Bragg grating (FBG) sensors are taken into comparison between optical mechanical testing results. Drop test from MPD FBG correlated to textile previous relatins derived...
Metasurfaces based on subwavelength resonators enable novel ways to manipulate the flow of light at optical interfaces. In pursuit multifunctional or reconfigurable metadevices, efficient tuning macroscopic performance with little structural/material variation remains a challenge. Here, we put forward concept non-Hermitian doping in metasurfaces, showing that an ordinary retroreflector can be switched asymmetric one by introducing absorptive defects local regions. The absorption begins zero...
Metasurfaces based on subwavelength resonators have showing unprecedented ability of controlling the flow electromagnetic waves, enabling many novel phenomena such as retroreflection. So far, majority retroreflectors focus manipulation linear polarized waves. Besides, conversion efficiency made gradient metasurfaces is inherently limited. Here, we propose a metagrating retroreflector for high-efficient spin-locked retroreflection and suppression undesired diffractions. The handedness...