A5042566458- Terahertz technology and applications
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Liquid Crystal Research Advancements
- Geological and Geochemical Analysis
- Superconducting and THz Device Technology
- Photonic and Optical Devices
- Spectroscopy and Laser Applications
- Gyrotron and Vacuum Electronics Research
- Seismic Waves and Analysis
- Advanced Optical Imaging Technologies
- Advanced Measurement and Detection Methods
- Metamaterials and Metasurfaces Applications
- Semiconductor Quantum Structures and Devices
- Molecular Junctions and Nanostructures
- Optical Systems and Laser Technology
- Photochromic and Fluorescence Chemistry
- Earthquake Detection and Analysis
- Infrared Target Detection Methodologies
- Photonic Crystals and Applications
- Quantum and electron transport phenomena
- Laser-Matter Interactions and Applications
- Graphene research and applications
- Chemical Synthesis and Characterization
- Optical Polarization and Ellipsometry
Chinese Academy of Sciences
2009-2025
Institute of Geodesy and Geophysics
2016-2025
Jianghan University
2024
State Key Laboratory of Geodesy and Earth's Dynamics
2023-2024
China Three Gorges University
2024
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering
2024
Nanyang Technological University
2023-2024
Jiangsu Academy of Agricultural Sciences
2021-2024
Jiaxing Vocational Technical College
2024
Nanjing Agricultural University
2024
Abstract Free‐space super‐strong terahertz (THz) electromagnetic fields offer multifaceted capabilities for reaching extreme nonlinear THz optics. However, the lack of powerful solid‐state sources with single pulse energy >1 mJ is impeding proliferation applications. The fundamental challenge lies in hard to achieve high efficiency due intensity pumping caused crystal damage, linear absorption, and distortion induced short effective interaction length, so on. Here, through cryogenically...
Extremely strong-field terahertz (THz) radiation in free space has compelling applications nonequilibrium condensed matter state regulation, all-optical THz electron acceleration and manipulation, biological effects, etc. However, these practical are constrained by the absence of high-intensity, high-efficiency, high-beam-quality, stable solid-state light sources. Here, generation single-cycle 13.9-mJ extreme pulses from cryogenically cooled lithium niobate crystals a 1.2% energy conversion...
We demonstrate generation of 0.2 mJ terahertz (THz) pulses in lithium niobate driven by Ti:sapphire laser at room temperature. Employing tilted pulse front technique, the 800 nm-to-THz energy conversion efficiency has been optimized to 0.3% through chirping sub-50 fs pump overcome multi-photon absorption and extend effective interaction length for phase matching. Our approach paves way mJ-level THz via optical rectification using existing systems which can deliver Joule-level with duration.
Salt stress impairs nutrient metabolism in plant cells, leading to growth and yield penalties. However, the mechanism by which plants alter their processes response salt remains elusive. In this study, we identified characterized rice (Oryza sativa) tolerant 1 (rst1) mutant, displayed improved tolerance grain yield. Map-based cloning revealed that gene RST1 encoded an auxin factor (OsARF18). Molecular analyses showed directly repressed expression of encoding asparagine synthetase (OsAS1)....
Abstract The Wudalianchi Volcano Field (WDF) is a typical intraplate volcano in northeast China with generation mechanism not yet well understood. As its last eruption was around 300 years ago, the present risk for of particular public interest. We have carried out high‐resolution ambient noise tomography to investigate location magma chambers beneath volcanic cones dense seismic array 43 seismometers and ~ 6 km spatial interval. Significant low‐velocity anomalies up 10% are found at 7–13...
Arbitrary manipulation of broadband terahertz waves with flexible polarization shaping at the source has great potential in expanding numerous applications, such as imaging, information encryption, and all-optical coherent control nonlinear phenomena. Topological insulators featuring unique spin-momentum–locked surface state have already exhibited very promising prospects emission, detection, modulation, which may lay a foundation for future on-chip topological insulator-based systems....
Maintaining Na+ /K+ homeostasis is a critical feature for plant survival under salt stress, which depends on the operation of and K+ transporters. Although some transporters mediating root uptake have been reported to be essential maintenance homeostasis, effect long-distance translocation via phloem tolerance remains unclear. Here, we provide physiological genetic evidence involvement phloem-localized OsAKT2 in rice tolerance. channel permeable but not . Under T-DNA knock-out mutant, osakt2...
Intense terahertz (THz) radiation in free space has immense potential for regulating material state, accelerating electrons, producing biological effects, and so on. However, the high cost challenges involved constructing strong-field THz sources have limited their developments, making it difficult applications of to be widely adopted. Spintronic emitters (STEs) with numerous merits such as efficiency, ultrabroadband, ease integration, low become ubiquitous, but majority these require stable...
Background Pyropia haitanensis and P. yezoensis are two economically important marine crops that also considered to be research models study the physiological ecology of intertidal seaweed communities, evolutionary biology plastids, origins sexual reproduction. This plastid genome information will facilitate breeding, population genetics phylogenetics. Principal Findings We have fully sequenced using next-generation sequencing circular genomes hatanensis (195,597 bp) (191,975 bp), largest...
Abstract Large Low Velocity Provinces (LLVPs) are situated oppositely in the lowermost mantle beneath Pacific Ocean and Africa. Deciphering detailed seismic structures at edge of LLVPs can provide key information on composition dynamics deep Earth. Here, we a image western LLVP by dense recordings. Differential travel time residuals amplitude ratios between ScS S outline S‐wave boundary LLVP, suggesting complex including low/high‐velocity patches our study region. We determine 3D...
Abstract The eastern margin of the Tibetan plateau is characterized by dramatic variations in topography and crustal thickness, as well pronounced large‐scale lateral heterogeneity. Small‐scale heterogeneities could indicate material composition dynamic processes, which have been less studied this area. Here, we analyze direct P ‐, S ‐wave their coda from ∼61,000 three‐component seismograms frequency band 2–4 Hz. By fitting observed envelope functions using a 3D radiative transport theory...
A big step forward through synchrotron irradiation: The novel phosphatozirconium compound 1 is the structure with largest organic complexant that has been successfully analyzed by powder diffraction methods. Even light atoms could be localized and refined. layers of ZrO 6 octahedra tetrahedra PO 4 3 C are linked together hydrogen bonds, therefore suitable for ion‐exchange intercalation reactions. equation image
The synthesis of a series novel photoresponsive side-chain liquid crystalline polymers (LCPs) bearing an N-hydroxysuccinimide carboxylate-substituted azobenzene mesogen and their use in generating LCP networks are described. obtained monomers were characterized with 1H NMR, UV-vis, TGA, DSC, POM SAXS techniques. length the flexible spacers show significant influence on properties such as phase transition behaviors monomer reactivity. polymerization reactivity increases increase spacer only...
The synthesis of a series new photoresponsive side-chain liquid crystalline polymethacrylates with amide group-substituted azobenzene (azo) mesogens and different length flexible spacers terminal tails via conventional free radical polymerization is described. resulting azo polymers proved to have high thermal stability good solubility in common organic solvents (e.g., tetrahydrofuran chloroform). Differential scanning calorimetry, polarizing optical microscopy, small angle X-ray scattering...
Abstract The core‐mantle boundary (CMB) marks the most dramatic changes in physical properties within Earth, and plays a critical role understanding of Earth's dynamics. PmKP waves are seismic phases that reflect ( m − 1) times under CMB useful for studying complex structure. We present an automated workflow detecting using multi‐station records from global stations. employ novel sampling method to extract waveforms into 2‐D matrix. Two deep neural networks then utilized initial phase...
Abstract The fine-scale seismic features near the inner core boundary (ICB) provide critical insights into thermal, chemical, and geodynamical interactions between liquid solid cores, may shed light on evolution mechanism of Earth’s core. Here, we utilize a dataset pre-critical PKiKP waveforms to constrain fine structure at ICB, considering influence various factors such as source complexity, structural anomalies in mantle, properties ICB. Our modeling suggests sharp ICB beneath Mongolia...
Aerobic photosynthetic organisms such as algae produce reactive oxygen species (ROS) by-products of metabolism. ROS damage biomolecules proteins and lipids in cells, but also act signaling molecules. The mechanisms that maintain the metabolic balance aerobic how cells specifically respond to different levels are unclear. Glutathione peroxidase (GPX) enzymes detoxify hydrogen peroxide or organic hydroperoxides, thus important components antioxidant system. In this study, we employed a...