A5100600719- Metamaterials and Metasurfaces Applications
- Plasmonic and Surface Plasmon Research
- Advanced Antenna and Metasurface Technologies
- Optical Coatings and Gratings
- Advanced ceramic materials synthesis
- Thermal Radiation and Cooling Technologies
- Orbital Angular Momentum in Optics
- Photonic and Optical Devices
- Nanowire Synthesis and Applications
- Advanced materials and composites
- Photonic Crystals and Applications
- Diamond and Carbon-based Materials Research
- Advanced X-ray Imaging Techniques
- Boron and Carbon Nanomaterials Research
- Thin-Film Transistor Technologies
- Advanced biosensing and bioanalysis techniques
- Electromagnetic Scattering and Analysis
- Gold and Silver Nanoparticles Synthesis and Applications
- Microwave Engineering and Waveguides
- Electromagnetic Simulation and Numerical Methods
- Advancements in Photolithography Techniques
- Microwave Dielectric Ceramics Synthesis
- Metal and Thin Film Mechanics
- Additive Manufacturing and 3D Printing Technologies
- Chromatography in Natural Products
Jinan University
2025
Institute of Microelectronics
2015-2024
Chinese Academy of Sciences
2015-2024
China National Petroleum Corporation (China)
2024
Shanghai Electric (China)
2024
Chinese Academy of Tropical Agricultural Sciences
2022-2024
Henan Agricultural University
2022-2024
Sanhua Holding Group (China)
2024
Marine Design & Research Institute of China
2024
China Academy of Space Technology
2023
We find that the solar energy absorption efficiency is high under a spectrum at AM 1.5, and it also has polarization-independence incidence insensitivity. Our absorber widest operating band compared with similar absorbers reported previously.
Abstract In this paper, an active tunable terahertz bandwidth absorber based on single-layer graphene is proposed, which consists of a layer, photo crystal plate, and gold substrate. When the Fermi energy ( E f ) 1.5 eV, shows high absorption in range 3.7 THz–8 THz, total rate 96.8%. By exploring mechanism absorber, excellent physical regulation. The also good adjustability by changing graphene. This means that exhibits tunability adjusting parameters absorber. Meanwhile, polarization...
This paper introduces a novel metamaterial absorber based on surface plasmon resonance (SPR). The is capable of triple-mode perfect absorption, polarization independence, incident angle insensitivity, tunability, high sensitivity, and figure merit (FOM). structure the consists sandwiched stack: top layer single-layer graphene array with an open-ended prohibited sign type (OPST) pattern, middle thicker SiO2, bottom gold metal mirror (Au). simulation COMSOL software suggests it achieves...
Solar energy is currently a very popular source because it both clean and renewable. As result, one of the main areas research now investigation solar absorbers with broad spectrum high absorption efficiency. In this study, we create an absorber by superimposing three periodic Ti-Al2O3-Ti discs on W-Ti-Al2O3 composite film structure. We evaluated incident angle, structural components, electromagnetic field distribution using finite difference in time domain (FDTD) method order to investigate...
A thermally tunable terahertz window based on the combination of a metamaterial and phase change material VO2 is proposed. The composed two vanadium oxide films with SiO2 layer sandwiched between them. thermochromic properties are key to functionality window. By controlling temperature around room 300 K, our can be used as smart it able regulate both absorption transmission external waves in response changes temperature. absorbance regulated by more than 90% transmittance 80%. switching...
We designed a perfect absorber based on bulk Dirac semi-metallic. The minimum bandwidth is 0.02 THz, the maximum quality factor 106, and refractive index sensitivity 0.1525 THz RIU −1 . device can be tuned by Fermi level.
To further reduce the fabrication difficulty of optical fiber sensors and improve sensing performance, this study introduced surface plasmon resonance (SPR) effect into technology designed an eccentric-core photonic crystal (EC-PCF). We investigated characteristics two fundamental modes in core polariton (SPP) on gold film. also influence structural parameters, such as film coating area thickness, air hole diameter, eccentricity, confinement loss achieved a refractive index (RI) sensitivity...
A dual-band, polarization-insensitive metamaterials (MMs) perfect absorber based on monolayer graphene in the mid-infrared range were designed and researched. By designing a simple structure, under optimal geometric parameters of proposed we simulate MMs absorber, corresponding two absorption peaks at wavelengths 48.49 μm 65.33 with absorptivity 99.31% 99.91%. Physical mechanisms is investigated by impedance matching theory. The study found that changing Fermi level graphene, resonant peak...
In this work, we theoretically designed a dynamically changeable terahertz metamaterial absorber with intelligent switch and high sensitivity, wide band narrow perfect absorption based on the combination of Dirac semimetal (BDS) vanadium dioxide (VO2). It features two methods for adjustment: altering Fermi energy level BDS to modify resonant frequency peaks utilizing phase change VO2 regulate rate peaks. addition, its rotational symmetric design ensures strong polarization-insensitivity. The...
Abstract The utilization of vector vortex beams (VVBs) in quantum experiments has recently become a topic tremendous interest. However, achieving focused, high‐resolution, transmission‐type, multichannel, and nonhomogeneously polarized VVB array remains great challenge. Here, by introducing degree freedom on high‐order Poincaré sphere the form latitude‐polarization control locally tailoring phase transverse polarization distributions at subwavelength scale, single transmission‐type...
Abstract In recent years, much effort is dedicated to the generation of vectorial optical fields with an arbitrary spatially varying polarization distribution by means metasurfaces. However, simultaneous and independent control amplitude, phase, still challenging, especially for multichannel a field angle‐multiplexed functionality. Here, facile route, called coherent pixel metaholography, proposed realize multichannel, angle‐multiplexed, demonstrate how enable fully realization full Poincaré...
In this paper, a theoretical simulation based on finite-difference time-domain method (FDTD) shows that the solar absorber can reach ultra-broadband and high-efficiency by refractory metals titanium (Ti) nitride (TiN). absorption spectrum of double-size cross-shaped absorber, bandwidth more than 90% is 1182 nm (415.648-1597.39 nm). Through analysis field distribution, we know physical mechanism combined action propagating plasmon resonance local surface resonance. After that, paper has...
In this work, the absorption of solar energy thin-film c-silicon (silicon is 1 μm) heterojunction cells (SSCs) with combination Ag nanoparticles (NPs) and TiO2 inverted triangular prism (IP) enhanced significantly. The top IP increases short wavelengths by coupling incident light into photonic modes in active layer. bottom NPs primarily enhances longer surface plasmon resonance (SPR). Thus, average 91.40% under AM 1.5 spectrum. geometries are optimized that based on maximum values Jsc. Jsc...