A5071538140- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Plasmonic and Surface Plasmon Research
- Terahertz technology and applications
- Orbital Angular Momentum in Optics
- Photonic and Optical Devices
- Advanced Optical Imaging Technologies
- Optical Wireless Communication Technologies
- Millimeter-Wave Propagation and Modeling
- Photonic Crystals and Applications
- Carbon dioxide utilization in catalysis
- Antenna Design and Optimization
- Advanced Chemical Sensor Technologies
- Advanced Measurement and Detection Methods
- Remote Sensing and Land Use
- Mass Spectrometry Techniques and Applications
- Microwave Engineering and Waveguides
- Near-Field Optical Microscopy
- Metal-Organic Frameworks: Synthesis and Applications
- CO2 Reduction Techniques and Catalysts
- Advanced Algorithms and Applications
- Silicon Carbide Semiconductor Technologies
- Quantum and electron transport phenomena
- Power Systems Fault Detection
Wuhan University of Technology
2021-2025
Continental (United Kingdom)
2025
State Key Laboratory of Continental Dynamics
2025
Chinese Academy of Sciences
2024
Institute of Mechanics
2024
East China Jiaotong University
2023
Tianjin University
2015-2021
Southern University of Science and Technology
2020
Oklahoma State University
2017-2018
King Abdullah University of Science and Technology
2017-2018
The concept of coding metasurface makes a link between physically metamaterial particles and digital codes, hence it is possible to perform signal processing on the realize unusual physical phenomena. Here, this study presents Fourier operations metasurfaces proposes principle called as scattering‐pattern shift using convolution theorem, which allows steering scattering pattern an arbitrarily predesigned direction. Owing constant reflection amplitude particles, required can be simply...
By allowing almost arbitrary distributions of amplitude and phase electromagnetic waves to be generated by a layer sub-wavelength-size unit cells, metasurfaces have given rise the field meta-holography. However, holography with circularly polarized remains complicated as achiral building blocks existing meta-holograms inevitably contribute holographic images both left-handed right-handed waves. Here we demonstrate how planar chirality enables fully independent realization high-efficiency for...
Abstract As a revolutionary three-dimensional imaging technique, holography has attracted wide attention for its ability to photographically record light field. However, traditional phase-only or amplitude-only modulation holograms have limited image quality and resolution reappear both amplitude phase information required of the objects. Recent advances in metasurfaces shown tremendous opportunities using planar design artificial meta-atoms shape wave front by optimal control amplitude....
A metasurface-based terahertz flat-lens array is proposed, comprising C-shaped split-ring resonators exhibiting locally engineerable phase discontinuities. Possessing a high numerical aperture, the planar lens flexible, robust, and shows excellent focusing characteristics in broadband frequency. It could be an important step towards development of devices for practical applications.
Abstract Metasurfaces have drawn enormous attention in both the physics and engineering communities owing to their capabilities of arbitrarily manipulating electromagnetic waves at subwavelength scale. One promising applications metasurfaces is realization high‐quality holograms. However, due passive response metasurface resonators, previous demonstrations on meta‐holography were mainly limited generating static images. Seeking new approaches realize active control over meta‐holograms highly...
Abstract Recently, metasurfaces made up of dielectric structures have drawn enormous attentions in the optical and infrared regimes due to their high efficiency designing freedom manipulating light propagation. Such advantages can also be introduced terahertz frequencies where efficient functional devices are still lacking. Here, polarization‐dependent all‐silicon proposed experimentally demonstrated. The composed anisotropic rectangular‐shaped silicon pillars on substrate. Each metasurface...
Integrating multiple functionalities into a single device is striking field in metasurfaces. One promising aspect polarization-dependent meta-devices enabled by simultaneous phase control over orthogonally polarized waves. Among these, Pancharatnam-Berry (PB) metasurfaces have drawn enormous interest owing to their natural and robust ability different circularly However, the responses are locked be opposite with each other, resulting interrelated under incidence. Here, generic designing...
Dielectric metasurfaces have achieved great success in realizing high-efficiency wavefront control the optical and infrared ranges.Here, we experimentally demonstrate several efficient, polarization-independent, all-silicon dielectric terahertz regime.The are composed of cylindrical silicon pillars on a substrate, which can be easily fabricated using etching technology for semiconductors.By locally tailoring diameter pillars, full over abrupt phase changes achieved.To show controlling...
Metasurfaces have enabled the realization of several optical functionalities over an ultrathin platform, fostering exciting field flat optics. Traditional metasurfaces are achieved by arranging a layout static meta-atoms to imprint desired operation on impinging wavefront, but their functionality cannot be altered. Reconfigurability and programmability next important step broaden impact, adding customized on-demand in which each meta-atom can individually reprogrammed. We demonstrate...
Abstract Metasurfaces have garnered significant interest owing to their inherent advantages over traditional optical components in manipulating electromagnetic waves unconventionally. Among the fundamental building blocks of metasurfaces, C‐shaped‐split‐ring resonators (CSRRs) emerged as a highly promising option, enabling strong resonances and precise control various characteristics waves, such phase, amplitude, polarization. This review aims showcase recent advancements CSRR metasurfaces...
We show that there are shape-independent upper bounds to the extinction cross section per unit volume of randomly oriented nanoparticles, given only material permittivity. Underlying limits restrictive sum rules constrain distribution quasistatic eigenvalues. Surprisingly, optimally-designed spheroids, with a single degree freedom, reach for four permittivity values. Away from these permittivities, we demonstrate computationally-optimized structures surpass spheroids and approach fundamental limits.
Seeking effective terahertz functional devices has always aroused extensive attention. Of particular interest is the beam splitter. Here, we have proposed, designed, manufactured, and tested a broadband non-polarizing splitter with variable split ratio based on an all-dielectric metasurface. The metasurface was created by patterning dielectric surface of N-step phase gradient etching to few hundred micrometers. conversion efficiency as high 81% under normal incidence at 0.7 THz achieved....
We present a transmissive all-dielectric terahertz (THz) metamaterial half-wave plate with double-working-layer structure. One layer works as to enable polarization conversion of the incident THz wave, and other functions an antireflection improve transmission. The device is made pure silicon only can realize high-performance at designed frequency. Numerical simulations have been performed show how properties wave be adjusted by structural parameters metamaterial. With appropriate...
Metasurfaces are unique subwavelength geometries capable of engineering electromagnetic waves at will, delivering new opportunities for holography. Most previous meta-holograms, so-called phase-only modulate only the amplitude distribution a virtual object and require optimizing techniques to improve image quality. However, phase reconstructed is usually overlooked in studies, leading inevitable information loss. Here, we demonstrate all-dielectric meta-holograms that allow tailoring both...
Seeking effective and precise control over electromagnetic waves has always been an important focus in optics. Advances nanofabrication technology have led to designer metasurfaces, which open up new possibilities by allowing almost arbitrary spatial distributions of optical properties be realized. This study demonstrates a multiplexed meta‐hologram generating different images for polarizations terahertz frequencies. By utilizing C‐shape bar resonators as the basic unit cells, simultaneous...
The geochemical data of the gas sourced from Majiagou Formation indicate low organic content and high thermal maturity, which make evaluation hydrocarbon generative potential difficult. However, abundance maturity it difficult to evaluate its generation potential. Study genesis pyrite can provide a better understanding source rock depositional environment evolution. In this paper, we report significant amount linked in Formation. Light electron microscopy were used observe morphology while...
In this paper, an approach to control the longitudinal motion as well reject disturbance of a platoon autonomous vehicles is presented. Firstly, we consider acceleration and velocity leading vehicle disturbance, establish model which describes dynamics inter-vehicle. Secondly, constant time headway (CTH) strategy adopted design upper controller based on predictive (MPC) obtain desired acceleration. For rejecting unknown major contribution that differs paper from previous research level has...
Bound states in the continuum (BICs) on metasurfaces have garnered significant interest for their ultrahigh Q-factor potential sensing applications. Reconfigurability and multi-band resonance are highly desirable systems. In this work, we introduce a metasurface comprising four nanocubes with different permittivity asymmetries, which can be dynamically adjusted using Ge
To improve the sensitivity of open-air femtosecond-laser-ablation mass spectrometry (fs-LA-MS), an external magnetic field was introduced to confine propagation plasma, reduce plasma neutralization rates, and drive charged particles towards MS orifice.