A5018233362- Orbital Angular Momentum in Optics
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Optical Systems and Laser Technology
- Solid State Laser Technologies
- Laser Design and Applications
- Photonic Crystal and Fiber Optics
- Photonic and Optical Devices
- Laser-Plasma Interactions and Diagnostics
- Metamaterials and Metasurfaces Applications
- Laser Material Processing Techniques
- Optical Wireless Communication Technologies
- Advanced Fiber Optic Sensors
- Adaptive optics and wavefront sensing
- Spectroscopy and Laser Applications
- Advanced Measurement and Metrology Techniques
- Advanced Antenna and Metasurface Technologies
- Ferroelectric and Piezoelectric Materials
- Optical measurement and interference techniques
- Terahertz technology and applications
- Optical Coatings and Gratings
- Cultural Heritage Materials Analysis
- Photorefractive and Nonlinear Optics
- Semiconductor Lasers and Optical Devices
- Acoustic Wave Resonator Technologies
Sichuan University
2016-2025
Chinese Academy of Sciences
2006-2024
National University of Defense Technology
2010-2024
Nanjing Medical University
2024
Qingdao University of Science and Technology
2023-2024
Beijing National Laboratory for Molecular Sciences
2024
Beijing Jiaotong University
2005-2023
East China Jiaotong University
2015-2023
Chengdu University of Information Technology
2006-2023
Beijing Electronic Science and Technology Institute
2022-2023
The Wigner distribution function (WDF) has been used to study the beam propagation factor (M(2)-factor) for partially coherent flat-topped (PCFT) beams with circular symmetry in a turbulent atmosphere. Based on extended Huygens-Fresnel principle and definition of WDF, an expression WDF PCFT turbulence given. By use second-order moments analytical formulas root-mean-square (rms) spatial width, rms angular M(2)-factor have derived, which can be applied cases different power spectra refractive...
We show theoretically by numerically solving the Landau-Lifshitz-Gilbert equation with a classical spin model on two-dimensional system that both magnetic skyrmions and skyrmion lattices can be moved microwave fields. The mechanism is enabled breaking axial symmetry of skyrmion, for example through application static in-plane external field. net velocity depends frequency amplitude fields as well strength maximum found where coincides resonance breathing mode skyrmions.
An ultrasensitive specific sensor based on all-dielectric metasurfaces in the terahertz range was proposed.
Abstract Achieving selective hydrodeoxygenation of α, β-unsaturated carbonyl groups to alkenes poses a substantial challenge due the presence multiple functional groups. In this study, we develop ZnNC-X catalyst (X represents calcination temperature) that incorporates both Lewis acidic-basic sites and Zn-N x address challenge. Among variants, ZnNC-900 exhibits impressive selectivity for in compounds, achieving up 94.8% selectivity. Through comprehensive mechanism investigations...
A simple method for simultaneously measuring the 6DOF geometric motion errors of linear guide was proposed. The mechanisms straightness and angular enhancing their resolution are described in detail. common-path laser beam drift proposed it used to compensate produced by error measurements. compact system built. Calibration experiments with certain standard measurement meters showed that our has a deviation 0.5 µm range ± 100 measurements, deviations 0.5", 1.0" 100" pitch, yaw, roll respectively.
Geometric Hall effect is induced by the emergent gauge field experienced carriers adiabatically passing through certain real-space topological spin textures, which a probe to non-trivial such as magnetic skyrmions. We report experimental indications of spin-texture charges in heterostructures insulator (Bi,Sb)2Te3 coupled an antiferromagnet MnTe. Through seeding effect, pinned spins at interface leads tunable modification averaged charge. This experimentally manifests field-dependent...
A strategy to greatly broaden negative refractive index (NRI) band, reduce loss and ease bi-anisotropy of NRI metamaterials (MMs) has been proposed at terahertz frequencies. Due the symmetric structure MM, transmission are independent polarizations incident radiations, a broadband is obtainable for range angle from 0° 26°. In addition, THz MMs' properties such as transmission, phase refraction exhibit real-time response by controlling temperature. The results indicate that maximum bands...
Abstract Metasurfaces that can efficiently control the light‐field characteristics have shown many advantages in ultra‐compact, high‐resolution, and high‐concealment optical imaging such as nanoprinting holography. The development of metasurfaces with multiple functions operating at wavelengths promote progress high information storage encryption densities. Here, an all‐dielectric metasurface is proposed for multi‐channel image near field by controlling amplitude distribution based on...
Users provide and share information with a broad audience on different forms of social media; however, accuracy is questionable. Currently, the health field severely affected by misinformation. Thus, addressing misinformation integral for enhancing public health. This research can help relevant practitioners (i.e., government officials, medical service personnel, educators) find most effective correctional interventions governing We constructed theoretical model credibility-oriented...
The CaTiO3-modified [(K0.5Na0.5)0.96Li0.04](Nb0.91Sb0.05Ta0.04)O3 lead-free piezoelectric ceramics were prepared using normal sintering for improving the temperature stability of (K0.5Na0.5)NbO3-based ceramics. effects CaTiO3 on and properties systematically studied. These results show that possess good in polymorphic phase transition below room temperature, also exhibit high (d33=263 pC/N kp=50%) when poled at an optimum poling temperature. indicate ceramic is a promising candidate material
A measurement system to simultaneously measure six degree-of-freedom (6DOF) geometric errors is proposed. The method based on a combination of mono-frequency laser interferometry and fiber collimation. simpler more integrated optical configuration designed. To compensate for the introduced by error crosstalk, element fabrication error, beam drift, nonparallelism two beam, unified model, which can improve accuracy, deduced established using ray-tracing method. numerical simulation design...
Propagation properties of partially coherent electromagnetic hyperbolic-sine-Gaussian (PCESHG) vortex beams through non-Kolmogorov atmospheric turbulence, including the spectral degree polarization and evolution behavior vortices average intensity are investigated in detail by using extended Huygens-Fresnel principle spatial power spectrum refractive index turbulence. It is shown that motion, creation annihilation PCESHG turbulence may appear with increasing propagation distance, distance...
The aim of this study is to evaluate the pregnancy outcomes and prognoses for fetuses with ventriculomegaly. Two hundred forty-one cases ventriculomegaly were included in study. subjects divided into three groups according their lateral ventricular width: "Mild Ventriculomegaly" (10 ‒ < 12 mm), "Moderate (12 15 mm) "Severe (≥ mm). Pediatric examination records telephone interviews conducted track children until age 9 years. Eight-two Isolated Ventriculomegaly (34.0%), while Non-Isolated was...
A single-crystalline ZnO nanorod array with rectangular cross-sections has been synthesized, in which the as-obtained products are a complete metastable zinc blende (ZB) phase. X-ray powder diffraction, electron microscopy, and elemental maps have used to show that ZB-ZnO samples lattice constant = 4.580 Å, free from contamination by hexagonal wurtzite (HW) ZnO. Based on our experimental data, associated growth mechanism is tentatively suggested. In addition, photoluminescence (PL) spectrum...