A5103857716- Metamaterials and Metasurfaces Applications
- Luminescence Properties of Advanced Materials
- Plasmonic and Surface Plasmon Research
- Advanced Antenna and Metasurface Technologies
- Millimeter-Wave Propagation and Modeling
- Antenna Design and Analysis
- Terahertz technology and applications
- Microwave Engineering and Waveguides
- Gas Sensing Nanomaterials and Sensors
- Polydiacetylene-based materials and applications
- Luminescence and Fluorescent Materials
- Crystal Structures and Properties
- Optical Wireless Communication Technologies
- Radiation Detection and Scintillator Technologies
- bioluminescence and chemiluminescence research
- Glass properties and applications
- Phase-change materials and chalcogenides
- Pigment Synthesis and Properties
- Photonic and Optical Devices
- Advanced Chemical Sensor Technologies
- Perovskite Materials and Applications
- Advanced Battery Technologies Research
- Thermography and Photoacoustic Techniques
- Lanthanide and Transition Metal Complexes
- Microwave Dielectric Ceramics Synthesis
Sun Yat-sen University
2018-2025
Nanjing University of Information Science and Technology
2024
Hubei University
2019-2022
Jinan University
2022
Abstract A stretchable parabolic‐shaped metamaterial (PSM) coated onto polydimethylsiloxane (PDMS) is proposed and demonstrated for operation in the terahertz (THz) frequency range. By stretching PDMS‐based PSM device along different directions, ultranarrowband, polarization dependent, switchable optical characteristics are obtained. width length transverse electric (TE) magnetic (TM) modes, resonant tuning ranges of 0.55 0.32 THz, respectively, device. In these deformation ranges, Q...
In recent years, electromagnetic characteristics of metamaterials has aroused great interest because innovative fundamental understanding as well promising potential applications in optics, semiconductors, imaging, and sensing. We survey the state-of-the-art spatially reconfigurable which Lorentz, Coulomb, Ampere forces, optical signals thermal stimulation can be dynamically changed their properties. Electro-mechanical inputs change amplitude, phase, polarization incident wave, response...
A sickle-shaped metamaterial (SSM) based biochemical sensor with multiple resonances was investigated in the terahertz frequency range. The electromagnetic responses of SSM were found to be four resonances, namely dipolar, quadrupolar, octupolar and hexadecapolar plasmon resonances. They generated from interactions between perpendicularly incident waves. sensing performances SSM-based sensors evaluated by changing ambient environments analyte varieties. highest values sensitivity figure...
The integration of a high-performance metamaterial (MM) onto mechanically flexible and deformable substrates offers significant promise in electronics. Here, we propose two types stretchable infrared (IR) MMs to design tunable perfect absorber with ring-shape (PA-RS) cross-shape (PA-CS) on PDMS/Au/PDMS substrate, respectively. By stretching devices along different directions, PA-RS PA-CS exhibit ultra-narrowband, polarization-dependent/independent, switchable characterizations the IR...
A design of a tunable terahertz (THz) programmable device by using wrench-shape metamaterial (WSM) is presented, which composed Au layer fabricated on Si substrate. The size the WSM unit cell 30 μm×30 μm, and distance between each 20 μm. electromagnetic response THz exhibits switch function for single-band resonance dual-band at transverse electric mode magnetic mode. spans from 3.00 to 8.00 insensitive angle incident wave. While changing wave, bandwidth becomes broader transmission spectrum...
Abstract A tunable terahertz (THz) chain-link metamaterial (CLM) is presented, which composed of a tailored Au layer fabricated on Si substrate. CLM exhibits bidirectional polarization-dependent characteristic by applying direct-current (dc) bias voltage device. This device can be heated up the surrounding temperature to tune corresponding resonance. The tuning range 0.027 THz from 0.318 0.291 0.60 V 1.32 V. By reconfiguring gap between CLM, there are single-resonance with red-shift at TE...
We propose two designs of plasmonic metamaterial mid-infrared (MIR) sensors, which are composed metallic nanograting on SiO2 layer with a bottom mirror to form metal–insulator-metal (MIM) configurations. These MIM configurations denoted as MIM-S and MIM-D represent single metal double nanogratings, respectively. The electromagnetic responses investigated compared without embedded between top layer. By changing the height insulator layer, absorption spectra can be tuned linearly wavelength...
Abstract Orbital Angular Momentum (OAM) holography is demonstrated and implemented to enhance the capacity of multiplexed information level encryption. However, traditional fractional‐order OAM faces challenges due significant cross‐talk between adjacent channels. To address this issue, additional parameters are typically required. Here, spiral‐fractional (SF‐OAM) with perfect modes proposed. In method, spiral fractional modes, which differ from OAM, combined integer serve as independent...
We propose a novel infrared (IR) metamaterial absorber by using chalcogenide glass (ChG) material. The merits of ChG are zero extinction coefficient, excellent IR transparency, high third-order nonlinearity, adjustable refraction index, dispersion, and energy bandgap in the wavelength range. Therefore, it is very suitable for designs used widespread applications, such as solar cells, environmental sensors, wearable electronic devices, optoelectronics, so on. This ChG-based configured with...
We propose and demonstrate two designs of complementary spiral-shape metamaterials (CSSM) with square hexagonal meta-atom arrangements in the terahertz (THz) frequency range. For convenience, they are denoted as CSSM-S CSSM-H for CSSM arrangements, respectively. The electromagnetic responses investigated different spiral angle (θ). exhibits dual-, triple-, quad-resonance θ = 360°, θ = 540° θ = 720°, respectively transverse electric (TE) mode single-, triple-resonance magnetic (TM) mode. By...
The self-reduction of Eu3+ to Eu2+ and Ce4+ Ce3+ can first be found by doping rare earth ions RE (RE = Eu, Ce) in Ba2CaB2Si4O14 (BCBSO). Eu2+/Eu3+ codoped BCBSO Ce4+/Ce3+ Eu/Ce were synthesized a high-temperature solid-phase method air reducing atmospheres, respectively. By comparing the photoluminescence spectra phenomenon verified adequately. theoretical bond energy was used analyze occupancy Eu or Ce ions. experimental results are agreement with ones. color tuning phosphors achieved...
A series of novel Eu2+/3+, Ce3+ ion single- and co-doped BaZn2(PO4)2 samples were prepared via a high-temperature solid-state reaction. XRD powder diffraction results indicated that all the products pure phases. The photoluminescence properties BaZn2(PO4)2:Eu showed Eu2+ Eu3+ coexist in system can be self-reduced to an air atmosphere. In addition, strongest emission peak ions at 593 nm implied occupy inversion symmetry lattice also site Zn BaZn2(PO4). We used theoretical method bond energy...
This study addresses the critical need for rapid and online measurement of liquid concentrations in industrial applications. Although thermal lens effect (TLE) is extensively explored laser systems determining focal lengths, its application quantifying solution remains underexplored. research explores relationship between various interference fringes induced by TLE. A novel approach introduced, utilizing TLE to measure concentrations, with integration image processing discrete Fourier...
We proposed an effective metamaterial infrared (IR) emitter by using MEMS microheater with different pattern density. A highest heating efficiency of is under the density 49%. The composed π-shape nanostructures on surface to form a IR emitter. By changing gap width metamaterial, emissivity blue shift and enhances its emissivity. 0.94 at wavelength 5 μm. Such design able exhibit narrowband in range.
Four types of tunable terahertz (THz) metamaterials by using asymmetrical double split-ring resonators (ADSRRs) are presented, which composed Al material on Si substrate. These ADSRRs have different optical characterizations in THz frequency range. They exhibit TE polarization-dependent and TM polarization-independent changing resonant gaps. The shift LC mode is 0.19 at polarization invariant polarization.