A5103942933- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Photonic and Optical Devices
- Advanced X-ray Imaging Techniques
- Advanced Fiber Optic Sensors
- Nuclear Materials and Properties
- Photonic Crystal and Fiber Optics
- X-ray Spectroscopy and Fluorescence Analysis
- Optical Coatings and Gratings
- Advanced Surface Polishing Techniques
- Nuclear physics research studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advancements in Photolithography Techniques
- Supercapacitor Materials and Fabrication
- Semiconductor Lasers and Optical Devices
- Fire dynamics and safety research
- Astrophysical Phenomena and Observations
- Electron and X-Ray Spectroscopy Techniques
- Phase-change materials and chalcogenides
- Combustion and Detonation Processes
- Metal and Thin Film Mechanics
- Laser-Plasma Interactions and Diagnostics
- Advanced biosensing and bioanalysis techniques
- Semiconductor materials and interfaces
- Advanced Fiber Laser Technologies
Guilin University of Technology
2019-2024
China Academy of Engineering Physics
2013-2024
Tongji University
2010-2024
National Institute of Neurological Disorders and Stroke
2024
National Institutes of Health
2024
China Jiliang University
2023
Sichuan Normal University
2022
Yangzhou University
2021-2022
Hefei Institutes of Physical Science
2022
Chinese Academy of Sciences
2022
Gold nanorods (GNRs) with different localized surface plasmon resonance (LSPR) peaks and thicknesses of polymer-coating were synthesized to validate that the distinct GNR-based quenching process quantum dot (QD) emission follows metal energy transfer theory. The efficiency is directly related spectral overlap GNR-LSPR absorption QD-emission, as well separation distance between two nanoparticles. GNRs are advantageous for DNA conjugation, high GNR-QD system was utilized sensitive detection.
Tunable composite materials with interesting physical behavior can be designed through integrating unique optical properties of solid nanostructures facile responses soft matter to weak external stimuli, but this approach remains challenged by their poorly controlled coassembly at the mesoscale. Using scalable wet chemical synthesis procedures, we fabricated anisotropic gold-silica-dye colloidal and then organized them into device-scale (demonstrated for square-inch cells) electrically...
Abstract The Solar Upper Transition Region Imager (SUTRI) focuses on the solar transition region to achieve dynamic imaging observation of upper region. In this paper, we report optical system design, mechanical ultrasmooth mirror manufacture and measurement, EUV multilayer film coating, prelaunch installation calibration for SUTRI payload at IPOE, Tongji University. Finally, carried by SATech-01 satellite was successfully set launch. All functions telescope were normal, results obtained in...
Curved crystal imaging is an important means of plasma diagnosis. Due to the short wavelengths high-energy X rays and fixed lattice constant spherical crystal, it difficult apply in X-ray imaging. In this study, we have developed a high-energy, high-resolution imager based on toroidal that can effectively correct astigmatism. We prepared Ge 〈5 1 1〉 for backlighting Mo Kα1 characteristic lines (∼17.48 keV) verified its ability region, achieving spatial resolution 5–10 µm field view larger than 1.0 mm.
In this study, the effectiveness of NaOH extraction (AE), Fenton oxidation (FO), and synergistic pretreatment using AE FO for enzymatic saccharification corn stalks (CS) was compared by statistical analyses. The results showed that AE-FO treatment resulted in statistically higher enzymolysis efficiency glucose yield than single treatments. Compared with treatments, significant lignin removal xylan removal, consequently improving cellulose accessibility to cellulase. Among various parameters,...
A simultaneous high-resolution x-ray backlighting and self-emission imaging method for laser-produced plasma diagnostics is developed in which two Kirkpatrick–Baez channels high-energy low-energy are constructed using a combination of multilayer mirrors near-coaxial form. By streak or framing camera placed on the image plane, both backlit images with high spatial temporal resolution can be obtained simultaneously single shot. This paper describes details regard to its optical design,...
Low-loss optical fibers of Ge15As25Se40Te20 glass purified by combined chemical and physical methods were successfully drawn. A novel fabrication method fiber preform was adopted wrapping a 1 mm thick polyethersulfone (PES) plastic tube around the rod. The optical, thermal, bending strength properties comprehensively investigated. minimum transmission loss measured as 0.6 dB/m at 6.05 µm, average approximately 180.67 MPa with Weibull slope 49.18 for 400 µm diameter. Optical power...
The laterally graded multilayer collimator is a vital part of high-precision diffractometer. It applied as condensing reflectors to convert divergent X-rays from laboratory X-ray sources into parallel beam. thickness the film varies with angle incidence guarantee every position on mirror satisfies Bragg reflection. In principle, accuracy parameters sputtering conditions essential for achieving reliable result. this paper, we proposed precise method fabrication based planetary motion...
材料太赫兹吸收谱的指纹特性已被广泛应用于物质识别,但实际大气环境下,水蒸气对太赫兹波的强烈吸收会导致光谱严重振荡,假峰、弱峰、混叠峰相继增多,严重影响寻峰比对的精度及物质识别的能力。针对上述问题,提取相对湿度为2%,15%,35%,45%和60%环境下爆炸物的太赫兹吸收光谱信息数据,利用连续小波变换将光谱在频域上展开得到具有特征唯一性的频域尺度图;再基于深度学习方法,以ResNet-50网络模型为基本网络结构,对上述5种不同湿度环境下得到的爆炸物频域尺度图进行网络分类训练,其测试集分类准确率达96.6%。为验证该技术在未经训练湿度样本下的有效性,将相对湿度为50%,55%和67%时爆炸物的时域信号送入该识别系统,分类准确率可达96.2%。实验结果表明,基于小波变换与ResNet-50网络分类训练的太赫兹物质识别方法相比于传统寻峰方法大幅提升了爆炸物在高湿度环境下的识别准确率,规避了降噪、平滑等一系列复杂预处理操作,极大拓展了太赫兹光谱探测技术的工程适应性,为山地、森林、洼地等高湿度、极复杂的作战环境下精确探测、识别地雷等爆炸物提供了技术支持。
We analyze the optical response of a standing-wave driven four-level atomic system with double dark resonances. Fully developed photonic band gaps arise as result periodically modulated refractive index within two electromagnetically induced transparency widows. anticipate that dynamically can be used to coherently control propagation light-pulses different center frequencies and may have applications in all-optical switching routing for quantum information networks.