A5000354596- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Photorefractive and Nonlinear Optics
- Photonic and Optical Devices
- Metamaterials and Metasurfaces Applications
- Terahertz technology and applications
- Microwave Dielectric Ceramics Synthesis
- Multiferroics and related materials
- Advanced Fiber Laser Technologies
- Plasmonic and Surface Plasmon Research
- Photonic Crystals and Applications
- Intermetallics and Advanced Alloy Properties
- Nonlinear Waves and Solitons
- Nonlinear Photonic Systems
- Advanced ceramic materials synthesis
- Advanced Antenna and Metasurface Technologies
- Quantum optics and atomic interactions
- Advanced Welding Techniques Analysis
- Electronic Packaging and Soldering Technologies
- Metallurgy and Material Forming
- Optical and Acousto-Optic Technologies
- Electromagnetic wave absorption materials
- Dielectric materials and actuators
- Millimeter-Wave Propagation and Modeling
- Aluminum Alloys Composites Properties
Harbin Institute of Technology
2016-2025
Shanxi University
2019-2025
Ministry of Industry and Information Technology
2018-2025
Hebei University of Technology
2025
Xi’an Jiaotong-Liverpool University
2024
Institute of Molecular Functional Materials
2024
Shanxi University of Traditional Chinese Medicine
2021-2024
Guilin University of Electronic Technology
2023-2024
Ocean University of China
2024
Northeastern University
2023
Relaxor-lead titanate (PbTiO3) crystals, which exhibit extremely high piezoelectricity, are believed to possess electro-optic (EO) coefficients. However, the optical transparency of relaxor-PbTiO3 crystals is severely reduced as a result light scattering and reflection by domain walls, limiting applications. Through synergistic design ferroelectric phase, crystal orientation, poling technique, we successfully removed all light-scattering walls achieved an transmittance 99.6% in...
We report a compact triple-band tunable perfect terahertz metamaterial absorber (TMA) at the subwavelength scale of thickness, which is composed planar metallic disk resonator array above conductive ground plane separated with liquid crystal (LC) mixture. The calculations absorption spectra demonstrate triple near-unity bands in gap plasmonic resonance coupling regime. Three frequencies exhibit continuous linear-tunability as changing refractive index LC. Remarkably, each peak absorbance...
We propose an ultrasensitive tunable terahertz (THz) sensor which consists of single-layer graphene-based gratings integrated with a Fabry-Perot cavity through numerical simulation. The excitation standing-wave graphene surface plasmon polaritons can make the probing field strongly confined in gap cavity. This provides excellent platform for and high figure-of-merit (FOM) refractive index sensing at THz band. Our full-wave electromagnetic simulations show frequency sensitivity as 4.2 per...
An ultrahigh electric field–induced strain of 0.9% (under 1 kV mm −1 ) is achieved in lead-free ferroelectric crystals.
The tendency of zinc (Zn) anodes to form uncontrolled Zn electrodeposits and the occurrence side-reactions at Zn-electrolyte interfaces are a fundamental barrier hampering broad applications aqueous rechargeable Zn-based batteries. Herein, ferroelectric domain-mediated strategy is proposed manipulate plating behavior achieve controllable growth orientation by coating foil with tetragonal KTN (t-KTN) layer. domain t-KTN single crystals exhibits periodic distribution upward downward...
Conventionally, the spatially structured light beams produced by metasurfaces primarily highlight polarization modulation of propagating along optical axis or beams' spatial transmission trajectory. In particular, axis, state is either constant varies continuously in each output plane. Here, we develop innovative with continually changing any arbitrary trajectories. With tri-layer metallic metasurfaces, geometric characteristics layer structure can be adjusted to modulate phase and incident...
Abstract Perfect vector vortex beams play a very important role in understanding complex structured due to their nature and nonuniform polarization profiles. However, the generation of these suffers from limited number topological charges, bulky optical setup, lack color information, control along light propagation direction. To tackle fundamental technical challenges, metasurface approach generating multiple grafted perfect (GPVVBs) GPVVBs with different colors are observed by changing...
A thin radar-infrared stealth-compatible structure with reflectivity below −10 dB in the whole radar X wave band and infrared emissivity less than 0.3 region of 8 μm–14 μm is reported. The designed consists metallic frequency selective surface (MFSS), resistive (RFSS), metal backing from top down, it only 2.1-mm thick. MFSS made up some divided low copper films, RFSS a capacitive array square patches. They are placed close together, working as an admittance sheet because mutual influence...
An electrically tunable terahertz (THz) modulator with large modulation depth and low insertion loss is performed liquid crystal (LC) metamaterial. The beyond 90% below 0.5 dB are achievable at normal incidence by exploiting plasmon-induced transparency (PIT) effect. PIT spectra can be manipulated actively controlling the interference between dipole mode nonlocal surface-Bloch LC. incident angle tuning effect on shows that remain over a wide range of working angles. superior property...
We propose a reflective terahertz (THz) metalens with four focal points for polarization detection of THz beams. The is composed Z-shaped resonators spatially variant orientations, gold layer, and dielectric spacer between them. states the include left circular polarization, right an incident state, state whose major axis rotated π/4 in comparison that polarization. handedness, ellipticity, can be determined based on light intensities points. uniqueness designed device renders this technique...
We investigate narrowband transmission filters based on subwavelength-grating reflectors at normal incidence. Computational results show that the filtering is realized through symmetry-protected mode coupling. The guided resonances introduced by slab layer allow flexible control of filter frequencies. quality factor could exceed 106. Dielectric gratings can be used over entire range electromagnetic waves, owing to their scale-invariant operations. Owing high refraction index and low...
We present a hybrid coupling scheme of magnetic toroidal and electric dipole metasurface with suppressed radiation loss, which can produce the tunable plasmon-induced transparency (PIT) an enhanced slow-light effect in terahertz regime. The is constructed by nesting dual-split ring resonator (DSRR) inside (RR) to exploit destructive coherence electromagnetic mode at PIT resonance. polarization-dependence excitation performs active tunability PIT-induced group slowing down rotating...
A high performance liquid crystal terahertz phase shifter based on transparent polymer electrodes.
Defect engineering via doping exhibits considerable potential for improving the performance of environment-friendly lead-free piezoelectric materials. Owing to susceptibility lattice vibrations and micro-local chemical environment, readily available Mn/Fe transition metal elements (TMEs) facilitate construction defect structures. However, role TMEs in shaping domain structures corresponding promotional mechanism piezoelectricity need be further decoded. Herein, we propose different influence...
The single weighted differentiation-composition operator $W_{u,\varphi}^{(k)}$ on various spaces of analytic functions has been investigated for decades, i.e., $W_{u,\varphi}^{(k)}f = u \cdot f^{(k)} \circ \varphi$. However, the study finite sum operators with different orders are far from complete, \[ T_{\mathbf{u},\varphi}^{(n)}f u_{0} f \varphi + u_{1} f' \cdots u_{n} f^{(n)} \varphi. \] In this paper, we completely solve problem about boundedness and compactness...