A5023621851- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Plasmonic and Surface Plasmon Research
- Antenna Design and Analysis
- Terahertz technology and applications
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Advanced machining processes and optimization
- Electromagnetic Scattering and Analysis
- Aluminum Alloys Composites Properties
- Orbital Angular Momentum in Optics
- Thin-Film Transistor Technologies
- Liquid Crystal Research Advancements
- Electromagnetic wave absorption materials
- Electromagnetic Compatibility and Measurements
- Quantum optics and atomic interactions
- Perovskite Materials and Applications
- Clinical Laboratory Practices and Quality Control
- Acoustic Wave Resonator Technologies
- High-Temperature Coating Behaviors
- High-Velocity Impact and Material Behavior
- Optical Coatings and Gratings
- Advanced Materials and Mechanics
- Welding Techniques and Residual Stresses
- Materials Engineering and Processing
Northwestern Polytechnical University
2017-2024
Ministry of Industry and Information Technology
2020-2024
Tongji University
2023-2024
National University of Singapore
2022-2023
China XD Group (China)
2018-2020
University of Technology Malaysia
2017
Beijing Institute of Technology
2014
Optical sensors, with great potential to convert invisible bioanalytical response into readable information, have been envisioned as a powerful platform for biological analysis and early diagnosis of diseases. However, the current extraction sensing data is basically processed via series complicated time-consuming calibrations between samples reference, which inevitably introduce extra measurement errors potentially annihilate small intrinsic responses. Here, we proposed experimentally...
Non-Hermiticity has recently emerged as a rapidly developing field due to its exotic characteristics related open systems, where the dissipation plays critical role. In presence of balanced energy gain and loss with environment, system exhibits parity-time (PT) symmetry, meanwhile conjugate counterpart, anti-PT symmetry can be achieved dissipative coupling within system. Here, we demonstrate coherence complex control transition between PT in an electromagnetic metamaterial. Notably,...
Recent progress in the metamaterial-based polarization manipulation of light highlights promise novel polarization-dependent optical components and systems. To overcome limited frequency bandwidth metamaterials resulting from their resonant nature, it is desirable to incorporate tunability into manipulations. Here, we propose a dielectric metamaterial for controlling linear conversion using phase-change characteristic Ge2Sb2Te5 (GST), whose refractive index changes significantly when...
Abstract Seeking active and effective control over electromagnetic waves has always been an important focus in optics. Fano resonances occur planar terahertz (THz) metamaterials by introducing a weak asymmetry two‐gap split ring resonator. Without extra layers of photoactive materials microelectromechanical structures, novel economical scheme based on silicon‐integrated THz asymmetric metallic metamaterial is proposed to resonance transmission amplitude via electrical excitation. The results...
A metasurface is one of the most effectual platforms for manipulation complex optical fields.
Abstract All‐dielectric metasurfaces with low‐loss planar photonic subwavelength elements can be freely designed to realize high‐efficiency light wave manipulation. It is highly desirable achieve multifunctionalities a single metasurface further enrich the manipulation of for diverse applications. This article demonstrates multifunctional silicon‐based capable generating versatile wavefronts under different polarization incidence at visible wavelengths. The polarization‐multiplexed are...
Abstract Optical wavefront engineering is essential for the development of next‐generation integrated photonic devices. It used reflecting terahertz waves in a predesigned nonspecular direction with near‐unitary efficiency, which longstanding challenge high‐performance functional Recently, metagratings have offered an efficient solution beam steering at large angles without need discretization phase or impedance profile. Here, all‐dielectric fabricated using silicon cuboid complex lattice...
Novel manipulation techniques for the propagation of electromagnetic waves based on metamaterials can only be performed in narrow operating bands, and this drawback is a major challenge developing metamaterial-based practical applications. We demonstrate that scattering switched their band tuned by introducing liquid metal design functional metamaterials. The proposed metal-based metamaterial composed copper wire pair tiny pipe filled with metal, namely eutectic gallium-indium. interference...
Artificially structured metamaterials with metallic or dielectric inclusions are extensively studied for exotic light manipulations via controlling the local-resonant modes in microstructures. The coupling between these resonant has drawn growing interest recent years due to advanced functional metamaterial making microstructures more and complex. Here, suppression of magnetic resonance a cuboid, an analogue scattering cancellation effect radiation control system, realized exterior cloaking...
Abstract Since the performance of electronic circuits is becoming rather limited in face intensively increasing amount information and related operations, all‐optical processing offers a promising strategy for future system. It would benefit great deal if could be implemented within developed chips nanoscale structures. In that it highly desirable to break diffraction limit light achieving effective manipulations with deep subwavelength structures compatible state‐of‐the‐art nanofabrication...
The active control of electromagnetic response in metamaterial and mutual coupling between resonant building blocks is fundamental importance realizing high-quality metamaterials. In this work, we propose experimentally demonstrate the tunabilities symmetry-broken metasurfaces made orthogonal electric dipolar resonators. metasurface with vertical horizontal wires integrated a PIN diode for control. It found that electromagnetically induced transparency (EIT)-like spectrum appears due to...
We investigate the electrically tunable Electromagnetic induced transparency (EIT)-like effect of active metamaterial structures composed a wire and split ring resonator by simulation, experiment, temporal coupled-mode theory. It is illustrated that an EIT-like appears as result weak coupling between bright dark resonators. Around peak frequency, superradiant resonance mode highly suppressed subradiant resonator, high transmittance well large group delay manifested. By integrating varactor...
Abstract The interactions of photonic spin angular momentum and orbital momentum, i.e., the spin-orbit coupling in focused beams, evanescent waves or artificial structures, have attracted intensive investigations for unusual fundamental phenomena physics potential applications optical quantum systems. It is importance to enhance performance optics. Here, we demonstrate a titanium dioxide (TiO 2 )–based all-dielectric metasurface exhibiting high efficient control Hall effect (PSHE)...
The active control of artificially structured metasurfaces is a promising route for solving the operation bandwidth limitation due to their resonant nature. Herein, tunability toroidal response in terahertz hybrid metasurface proposed and experimentally demonstrated. top metallic layer has configuration coupled an electrically biased phase‐change silicon layer, whose conductive thickness conductivity can be changed significantly when applying increased external current. shows high efficiency...
High quality factor resonance with extremely narrow line‐width offers an important platform for terahertz (THz) sensing technology as it enables strong light‐matter interaction between THz waves and analyte materials. Lattice mode arising from the collective Rayleigh scattering of metamaterial periodic structures has ability to strongly confine electromagnetic on surface that fails radiate far‐field. Herein, first time, a strategy is experimentally demonstrated design metasensors, which...
Abstract A metasurface is a kind of ultrathin artificial composite composed subwavelength elements with unique abilities in manipulating electromagnetic waves. However, the static nature its conventional metallic/dielectric constituent material has limited fixed functionality narrow frequency ranges. The two‐dimensional carbon sheet, i.e., graphene, promising platform for effectively tuning as well operation band metasurface. Here, authors propose and demonstrate graphene hybrid dual‐band...
We theoretically and experimentally studied the coupling of magnetic Mie resonance a dielectric cuboid guide mode an alumina slab in all-dielectric metamaterial. It is found that excitation discrete or substrate can be properly controlled by designing geometry cuboid. Moreover, it tailored to achieve electromagnetically induced transparency (EIT)--like spectrum. The tunability EIT-like spectrum based on geometric parameters was also studied. Our results utilizing crucial contribution derive...
Coherent perfect absorber (CPA) is a novel strategy proposed and demonstrated for solving the challenge to attain efficient control of absorption by exploiting inverse process lasing. The operation condition CPA results in narrow-band, which main limitation obstruct it from practical applications. Here, we demonstrate with tunable frequency employing liquid metal made reconfigurable metasurface. flow restricted plastic pipe realizing controllable cut-wire. adjustable electric dipolar mode...
Abstract Massive applications of microwave technology have led to a large amount electromagnetic pollution, which seriously interferes with the normal operation communication systems in people's daily life. Optically transparent metasurface absorber is emerging as promising candidate for solving this problem some specific scenarios. When designing multiband absorbers, coupling within cell structure generally prevents independent modulation absorption effect each band. The rapid development...