A5100431466- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- GaN-based semiconductor devices and materials
- Earthquake Detection and Analysis
- Astro and Planetary Science
- Magnetic confinement fusion research
- Ga2O3 and related materials
- Planetary Science and Exploration
- ZnO doping and properties
- Orbital Angular Momentum in Optics
- Atmospheric aerosols and clouds
- Physics of Superconductivity and Magnetism
- Superconductivity in MgB2 and Alloys
- Dust and Plasma Wave Phenomena
- Photonic Crystals and Applications
- Nonlinear Waves and Solitons
- Silicon Carbide Semiconductor Technologies
- GNSS positioning and interference
- Machine Fault Diagnosis Techniques
- Catalysis and Hydrodesulfurization Studies
- Geophysics and Gravity Measurements
- Network Packet Processing and Optimization
- Advanced Sensor and Control Systems
- Semiconductor materials and devices
Chinese Academy of Sciences
2007-2025
National Space Science Center
2002-2025
Zhejiang Sci-Tech University
2020-2024
Wuhan University of Science and Technology
2024
Sun Yat-sen University
2018-2023
Research Institute of Petroleum Exploration and Development
2023
Vertech Group
2023
Nanjing University of Information Science and Technology
2018-2022
Taizhou Vocational and Technical College
2018-2022
Tangshan College
2016-2022
We propose theoretically and verify experimentally a method of combining q-plate spiral phase plate to generate arbitrary vector vortex beams on hybrid-order Poincare sphere. demonstrate that beam can be decomposed into vortex, whereby the generation realized by sequentially using plate. The generated beam, are verified show good agreement with prediction. Another advantage should pointed out is both fabricated silica substrates, suggesting potential possibility integrate two structures...
We provide an overview of light detection and ranging (lidar) capability for describing characterizing desert dust. This paper summarizes lidar techniques, observations, fallouts dust measurements. The main objective is to the scientific community, including nonpractitioners observations with a reference on In particular, it will fill current gap communication between research-oriented community potential data users, such as air quality monitoring agencies aviation advisory centers....
This work investigates a slightly-deformed cloud of enhanced mesospheric sodium (Na) and potassium (K) layers registered on 24 June 2023 by the dual-beam Na/K LIDAR system operating over low-latitude sector São José dos Campos - Brazil (23.1°S; 45.9°W), region under influence South Atlantic Magnetic Anomaly (SAMA). In this event, these peculiar metal clouds presented strong quick intensification with vertical extension ∼4 km duration only few minutes. At same time, evidence Energetic...
Although lidar is a powerful active remote sensing technology, echo signals are easily contaminated by noise, particularly in strong background light, which severely affects the retrieval accuracy and effective detection range of system. In this study, coupled variational mode decomposition (VMD) whale optimization algorithm (WOA) for noise reduction proposed demonstrated completely. The combination optimal VMD parameters number K quadratic penalty α was obtained using WOA critical acquiring...
Moraine soils are widely distributed in the Qinghai-Tibet Plateau. With increased global warming, moraine soil-related geohazards have become increasingly common, posing a serious threat to infrastructure (e.g., Sichuan–Tibet Railway) and inhabitants of this region. This paper aims investigate mechanical behavior ice-rich soil Tianmo Valley by conducting series triaxial constant strain rate (CSR) coupled thermomechanical (CTM) tests on artificially containing different ice forms (crushed...
Peas are one of the most important cultivated legumes worldwide, for which early yield estimations helpful agricultural planning. The unmanned aerial vehicles (UAVs) have become widely used crop estimations, owing to their operational convenience. In this study, three types sensor data (red green blue [RGB], multispectral [MS], and a fusion RGB MS) across five growth stages were applied estimate pea using ensemble learning (EL) four base learners (Cubist, elastic net [EN], K nearest neighbor...
A simple and compact converter based on the dielectric metasurface is proposed for transformation of Gaussian mode to Hermite-Gaussian Laguerre-Gaussian modes. We establish relationship between phase a desired local orientation optical axis evolution Pancharatnam-Berry Poincaré sphere. By controlling in metasurface, we can achieve any higher-order laser mode.
A propagation model of vector beams generated by metasurfaces based on diffraction theory is established theoretically and verified experimentally. Considering the Pancharatnam-Berry phase introduced metasurface, analytical forms for arbitrary incident polarization topological charge are found in Fresnel Fraunhofer regions, respectively. The complex amplitude resultant beam can be described terms a confluent hypergeometric function, with an intensity profile that manifests concentric rings...
Rice bean (Vigna umbellata (Thunb.) Ohwi & Ohashi) is a warm season annual legume mainly grown in East Asia. Only scarce genomic resources are currently available for this crop species and no simple sequence repeat (SSR) markers have been specifically developed rice yet. In study, approximately 26 million high quality cDNA reads were obtained from using Illumina paired-end sequencing technology assembled into 71,929 unigenes with an average length of 986 bp. Of these unigenes, 38,840 (33.2%)...
Microwave radiometers are vital for global ocean observations, yet they prone to errors from radio frequency interference, sun glint, and other contamination. This paper focuses on the newly launched Chinese FY-3G satellite’s Radiation Imager-Rainfall Mission (MWRI-RM) instrument, aiming detect glint contamination set a critical angle data quality control. The model regression difference method is employed simulate uncontaminated brightness temperatures at 10.65 GHz. By comparing observed...
Reliable estimation of the atmospheric boundary layer height (ABLH) is critical for a range meteorological applications, including air quality assessment and weather forecasting. Several algorithms have been proposed to detect ABLH from aerosol LiDAR backscatter data. However, most these focus on cloud-free conditions or use other ancillary instruments due strong interference clouds residual aerosols. In this paper, machine learning method named Mahalanobis transform K-near-means (MKnm)...
We report direct measurements of the Pancharatnam-Berry (PB) phase in mode transformations on a hybrid-order Poincaré sphere. This geometric arises when vector vortex states undergo cyclic transformation over closed circuit The measured PB is proportional to solid angle circuit, as well variation total angular momenta between north and south poles. More importantly, zero has been demonstrated, despite taken through interesting phenomenon can be explained being due Berry curvature.
We show that weak measurements can be used to measure the tiny signature of topological phase transitions. The is an in-plane photonic spin Hall effect, which described as a consequence Berry phase. It also parallel propagation direction light beam. imaginary part value analyze ultrasmall longitudinal shifts in different phases. These optical signatures are related Chern number and bandgaps; we use preselection postselection technique on state enhance original signature. amplification offers...
The polaritonlike excitations in piezoelectric-modulated superlattices are studied systematically by combining the plane wave expansion method and transfer matrix method; these two complementary methods yield full band structures of system mode-coupling information with external incident waves. Both transmission spectra calculated analyzed for made $\mathrm{Li}\mathrm{Nb}{\mathrm{O}}_{3}$, gap (divided midgap frequency) 19% is found computed electromagnetic wave. Furthermore, our study shows...
This paper proposes a hash-based secure interface between two nodes on the Internet, especial interfaces or web pages. Digital signatures and public-private keys are traditionally used to provide integrity authentication. an alternative method which uses shared private key public hash function for message that is sent over plain connection without losing An additional algorithm needed when has been hashed based salt (the key), value will be re-computed with produce string named as checksum....
We examine the geometric phase Doppler effect that appears when a structured light interacts with rotating material. In our scheme possesses vortex and material works as an inhomogeneous anisotropic plate. show manifests itself frequency shift which can be interpreted in terms of dynamic evolution Pancharatnam-Berry on hybrid-order Poincaré sphere. The induced by change rate time is derived from both Jones matrix calculations theory Unlike conventional rotational effect, proportional to...