A5100508683- Advanced Electron Microscopy Techniques and Applications
- Force Microscopy Techniques and Applications
- Advanced Chemical Physics Studies
- Electron and X-Ray Spectroscopy Techniques
- High-pressure geophysics and materials
- Integrated Circuits and Semiconductor Failure Analysis
- Bone Metabolism and Diseases
- Orthopaedic implants and arthroplasty
- Civil and Geotechnical Engineering Research
- Trace Elements in Health
- Structural Engineering and Vibration Analysis
- Advanced X-ray and CT Imaging
- Nuclear Physics and Applications
Chinese Academy of Sciences
2009-2025
Soochow University
2024
First Affiliated Hospital of Soochow University
2024
Czech Academy of Sciences, Institute of Physics
2009
Broadband photodetection, especially for the high-intensity pulsed lasers, has garnered increasing interest in photophysics and applied sciences driven by development of lasers. However, direct broadband photodetection with precisely capturing their spatiotemporal properties, been hampered low saturation intensity or damage threshold traditional optoelectronic materials. Here, we demonstrate that strategic enhancement excitonic effects two-dimensional (2D) layered hybrid perovskite can...
Ultrafast electron diffraction is a powerful technique for the measurement of transient structure at atomistic level and on ultrafast timescale. Here we report development first such an system in China. With careful design after performing optimization its spatiotemporal resolution, are able to detect sub-milli-ngstrom lattice spacing change with sub-picosecond temporal resolution heated Al film. This achievement offers great promise conduct real-time measurements structures many dynamical...
Ultrafast electron diffraction （UED） is a powerful technique for the measurement of transient structures. Employing our UED system, with its capability detecting sub-milli-ngstrom lattice spacing change sub-picosecond temporal resolution, we performed real-time observation both coherent phonon and thermal motions polycrystalline 20 nm Al film, which was excited by femtosecond laser pulses. The obtained oscillation period ～7.4 ps temperature rise ～77 K agree well those from theoretical...
Ultrafast electron diffraction (UED) is a rapidly advancing technique capable of recording the atomic-detail structural dynamics in real time. We report establishment first UED system China. Employing this apparatus, both coherent and concurrent thermal lattice motions an aluminium thin-film, trigged by ultrafast laser heating, have been observed. These results demonstrate its ability to directly measure sub-milli-angstrom spacing change on sub-picosecond time scale.
The electronic Grüneisen constant γe of Al is measured at room temperature using our homemade ultrafast electron diffraction (UED) equipment. contribution to the thermal expansion solid differentiated from lattice in time domain when an film heated rapidly by ultrashort laser pulse. By directly probing associated real temperature, we differentiate two domain, and finally obtain γe. With this new method overcome restriction traditional low methods measuring nonmagnetic metals.
口腔亚健康是指口腔处于健康与疾病状态之间的一种状态，其灵敏辨别与准确检测对于维护儿童和成人群体的身心健康均具重大意义。最新研究表明，口腔共生菌群的特异性结构或功能变化可先于口腔临床症状出现，因此具备预测疾病发生的潜力。首先，综述了口腔菌群与口腔内生态位、宿主年龄、疾病状态等的关联，讨论了基于口腔菌群定义与检测牙齿、牙周组织的亚健康状态的现有证据及潜力; 其次，以微生物组大数据和单细胞分析为例，探讨了新一代微生物组分析技术的最新进展和应用前景。基于微生物组的口腔亚健康状态检测与机制研究，将为口腔乃至全身的精准医疗与精准护理提供新思路和新工具。