A5008214933- Nuclear Physics and Applications
- Advanced Memory and Neural Computing
- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Neural Networks and Reservoir Computing
- Superconducting Materials and Applications
- Ferroelectric and Negative Capacitance Devices
- Solid State Laser Technologies
- Radiation Detection and Scintillator Technologies
- Neuroscience and Neural Engineering
- Particle Detector Development and Performance
- Photoreceptor and optogenetics research
- Magnetic confinement fusion research
- Semiconductor materials and devices
- Semiconductor Lasers and Optical Devices
- Atomic and Subatomic Physics Research
- Energy Load and Power Forecasting
- Ga2O3 and related materials
- Nuclear reactor physics and engineering
- GaN-based semiconductor devices and materials
- Smart Grid and Power Systems
- Advanced Decision-Making Techniques
- Laser-Matter Interactions and Applications
- X-ray Diffraction in Crystallography
- Anomaly Detection Techniques and Applications
Chinese Academy of Sciences
2011-2025
Suzhou Institute of Nano-tech and Nano-bionics
2024-2025
Beijing University of Technology
2023-2025
IMS Nanofabrication (Austria)
2025
Institute of High Energy Physics
2025
China Spallation Neutron Source
2025
Shenyang Institute of Computing Technology (China)
2024
China Academy of Engineering Physics
2019-2022
With the rapid development of artificial intelligence and intelligent robot technology, integrating human emotions has become essential for improving interactions with machines. The amygdala, a key brain region regulating emotions, plays an important role in advancing this technology by simulating internal emotional synaptic activities. However, it been significant challenge to perform simulation studies on activity within amygdala during process generation transformation. Here, we propose...
Small-angle X-ray and neutron scattering (SAXS SANS) offer complementary insights into multi-scale multiphase structures. Efforts have been made to integrate SAXS SANS instruments, with only D22 at the Institut Laue-Langevin successfully implementing a setup; this was constrained horizontal geometry due space limitations high radiation noise. Here, we introduce an in situ vertical setup beamline 14, Very Small Angle Neutron Scattering (VSANS) instrument, China Spallation Source. The compact...
Artificial synapses, basic units of neuromorphic hardware, have been studied to emulate synaptic dynamics, which are beneficial for realizing high-quality neural networks. Currently, two-dimensional (2D) material heterojunction structures widely used in the study artificial synapses; however, their dynamic weight-updating characteristics restricted owing high nonlinearity and low symmetricity. In this study, we treated h-BN with oxygen plasma form a charge-trapping layer (CTL), prepared 2D...
Abstract 2D van der Waals heterostructure‐based artificial synapses have emerged as a compelling platform for next‐generation neuromorphic systems, owing to their tunable electrical conductivity and layer‐engineered functionality through controlled stacking of materials. In this work, an engineered SnS₂/h‐BN/CuCrP₂S₆ antiferroelectric field‐effect transistor (AFe‐FET) is presented that implements synaptic weight modulation the synergistic interplay charge trapping dynamics...
Neuromorphic devices, which break the traditional von Neumann architecture, have attracted much attention for their ability to mimic perception, learning, and memory functions of human brain. Two-dimensional (2D) materials are excellent candidates building neuromorphic devices due atomic-level thickness optoelectronic properties. In this work, we designed a nonvolatile floating-gate synaptic device based on an HfS2/HfOx/SnS2 van der Waals heterostructure. This exhibits large window 60 V,...
The measurement of 6Li(n, t)4He differential cross section is the first experiment conducted with Light-charged Particle Detector Array (LPDA) at Back-n white neutron source China Spallation Neutron Source. LPDA system consists three kinds detectors. One them grid ionization chamber (GIC), which has capability particle identification. identification performance GIC presented based on data collected in this experiment. Signals from anode and cathode are digitized through readout electronics...
A 4-π detector array composed of 40 BaF_2 crystals named Gamma Total Absorption Facility II (GTAF-II) is designed for neutron capture cross-section (n, γ) measurements at Back-n white source in China Spallation Neutron Source. The waveform digitizing (WFD) method used to acquire the signals from GTAF-II accurately. To reduce high data rate caused by WFD method, a real-time digital trigger system proposed this paper. divided into local and global processing distinguish desired various noises....
In this letter we report a simple single-stage amplifier realized as high 62 W average power output at 1064 nm wavelength, 40 picoseconds pulse width and 80 MHz repetition from 0.7 seed laser based on backward pumped master-oscillator fiber (MOPA) system. It is can stable operation in 57.6 for hours. We applied semiconductor saturable absorber mirror (SESAM) passive mode-lock Nd:YVO4 oscillator source 6m long 20 μm core double-cladding Yb-doped (YDF) gain medium. To the best of our...
In this paper, we report 38.8 W average power output through a single-stage fiber amplifier, with emission of 1064 nm wavelength 80 MHz repetition and 35 ps pulse width amplified from 2.15 SESAM passively mode-locked Nd:YVO4 laser oscillator. The high amplification is coupled 60.8 976 backward unidirectional pump into 2 m long 30/250 μm Yb-doped inner cladding. No obvious nonlinear effects arise in the output. To our knowledge highest double-clad picosecond amplifier.
We reported on a master-oscillator fiber power amplifier (MOPA) system and second-harmonic generation (SHG) system. Actively Q-switched Nd:YVO4 laser was used as seed source of light pluses. The MOPA produced much 76 kW peak at wavelength 1064 nm, with 35 kHz repetition rate 20 ns pulse duration. With lithium triborate (LBO) crystal type II phase matching, maximum 16 had been demonstrated. nonlinear effects such stimulate Brillouin scattering (SBS) Raman (SRS) the SHG conversion efficiency...
Abstract The back-streaming neutrons (Back-n) facility at China Spallation Neutron Source (CSNS) provides an excellent white neutron source for accurate nuclear data measurements. At Back-n, the GAmma spectrometer with GErmanium Array (GAEA) in planning is designed to measure neutron-induced cross-sections, structure, and in-beam spectroscopy. As GAEA consists of various detectors, developing maintaining readout electronics this challenging. A prototype based on universal digital platform...
A ytterbium-doped double-clad fiber laser generating up to 1026 W of continuous-wave output power at 1085 nm with a slope efficiency 74% by single-ended backward pumping configuration is reported. The core diameter was 20 μm low numerical aperture 0.06, and good beam quality (BPP < 1.8 mm mrad) achieved without special mode selection methods. No undesirable roll-over observed in increasing pump power, the maximum limited available power. instability better than ±0.6%. Different...