A5068164551- Optical Systems and Laser Technology
- Laser-Matter Interactions and Applications
- Advanced Radiotherapy Techniques
- Laser Material Processing Techniques
- Welding Techniques and Residual Stresses
- Laser and Thermal Forming Techniques
- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- Advanced Surface Polishing Techniques
- Photonic and Optical Devices
- Atomic and Molecular Physics
- Engineering Applied Research
- Mass Spectrometry Techniques and Applications
- Advanced Measurement and Metrology Techniques
- Solid State Laser Technologies
- Advanced Chemical Physics Studies
- Advanced Fiber Laser Technologies
- Terahertz technology and applications
- Manufacturing Process and Optimization
- Optical Network Technologies
- Laser-induced spectroscopy and plasma
- Optical measurement and interference techniques
- Diamond and Carbon-based Materials Research
- Infrared Target Detection Methodologies
- Medical Imaging Techniques and Applications
China Academy of Space Technology
2025
Yangtze Normal University
2025
China Academy of Engineering Physics
2014-2024
Kunming University of Science and Technology
2023-2024
National Institute of Metrology
2015-2023
Laser Research Institute
2023
Shandong Jianzhu University
2023
Changsha University of Science and Technology
2023
Chengdu University of Technology
2022
Wenzhou University
2017-2021
A standoff 3-D imaging radar for security body scan at 340 GHz has been described. This terahertz imager incorporates a multiple input output (MIMO) array as an electronic beam former in horizontal dimension and elliptic cylinder focusing reflector elevation. Frequency-modulated continuous-wave (FMCW) emission with 16-GHz bandwidth caused 10-mm-range resolution after calibration nonlinearities of the distorted signals. The MIMO contains 4 transmitters 16 receivers (4Tx-16Rx) to generate...
A novel silicon carbide (SiC) trench MOSFET with floating/grounded junction barrier-controlled gate structure (FJB-MOS/GJB-MOS) is presented and investigated utilizing Sentaurus TCAD simulations. The split P+ region introduced beneath the could better shield oxide from high electric field in blocking mode, leading to an enhancement breakdown voltage while without significant degradation of other characteristics. As a result, FJB-MOS floating shielding exhibits higher figure merit related...
The first observation of laser induced continuum structure on autoionizing states in both third harmonic generation and ionization is reported for atomic Ca. possibility controlling the shape structure, exhibiting a transition from dip to peak, through field intensities demonstrated. Theoretical time dependent analysis including parameters verifies that experimental observations originate coherent interactions.
Laser-induced periodic surface structures (LIPSSs) are a universal phenomenon that can be observed on variety of materials, including metals, semiconductors, and dielectrics, upon irradiation with ultrafast laser pulses. It has found various potential applications in the fields optics, biologics, mechatronics due to its efficient flexible fabrication process subwavelength quasi-periodic property. However, LIPSSs face challenge uniformity control because formation micro-/nanostructures...
With the increase in quantity and scale of Static Random-Access Memory Field Programmable Gate Arrays (SRAM-based FPGAs) for aerospace application, volume FPGA configuration bit files that must be stored has increased dramatically.The use compression techniques these bitstream is emerging as a key strategy to alleviate burden on storage resources.Due severe resource constraints space-based electronics unique application environment, simplicity, efficiency robustness decompression circuitry...
A 0.14 THz wireless communication system that can transmit data with bit rate of 5 Gbps in real time over more than 21 km is developed. Solid-state power amplifier and vacuum electronic are cascaded to achieve nearly watts output power. An all solid-state receiver running room temperature equivalent noise 1100 K used. experiment carried out two 49.5 dBi antennas measured error bellow 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−12</sup> ....
This study delves into the intricate dynamics of laser-induced damage in fused silica using a time-resolved pump-probe (TRPP) shadowgraph. Three typical ultra-fast processes, plasma evolution, shockwave propagation and material fracture splashing, were quantitatively investigated. The results indicate that diameter is proportional to pulse laser energy increases linearly during duration with an expansion rate approximately 6 km/s. maximum velocity on air side 9 km/s, occurring at end...
This work deals with the fundamental problem of behaviour two-electron atom under intense laser fields; i.e. three-body Coulomb strong excitation. We present a broad scope calculations and results and, we believe, first ATI spectrum, in three-dimensional atom, beyond single active electron model fully time-dependent non-perturbative calculation. perform both on basis configuration interaction where electrons are allowed to be excited frozen-core (single electron) basis. The comparison is...
Modulating lasing wavelength flexibly and repeatedly on a single rod is essential to the practical applications of micro/nanorod lasers. In this paper, structure that decouples gain medium optical cavity proposed, where corresponding mechanism for shift explained. Based above structure, one kind continuously variable lasers achieved GaN/InGaN core–shell microrod without modifying geometry resonant or cutting microrod. By using method, can be modulated from 372 408 nm in 10 μm facilely...
The dissociative double ionization and multi-photon of 1-bromo-2-chloroethane (BCE) irradiated by the 800 nm femtosecond laser field have been investigated dc-slice imaging technology. charged parent ion ratio [BCE(2+)]/[BCE(+)] was measured, corresponding process including non-sequential sequential analyzed. sliced images different photo-dissociated ions were detected, kinetic energy release (KER) distributions calculated extracted. Furthermore, channels, attributed to cleavage C-C, C-Br,...
Ultrahigh-voltage 4H-silicon carbide (SiC) gate turn-OFF thyristors (GTOs), with multiple space-modulated buffer trench (SMBT) regions on the traditional three-step junction termination extension (3S-JTE), have been investigated and fabricated. With adoption of these SMBT regions, electric field crowding near edges is effectively suppressed sensitivity edge maximum etching depths greatly reduced. The fabricated SiC GTOs an improved 3S-JTE can accomplish a high blocking capability 10 kV,...
In this work, we designed a RPL material SrF 2 :Eu which could achieve PL discoloration after X-ray irradiation. The bulk was optimized to improve the imaging quality, is excellent candidate for time-lapse imaging.
Purpose: Microbeam radiation therapy (MRT) is defined as the use of parallel, microplanar x-ray beams with an energy spectrum between 50 and 300 keV for cancer treatment brain radiosurgery. Up until now, possibilities MRT have mainly been studied using synchrotron sources due to their high flux (100s Gy/s) approximately parallel paths. The authors proposed a compact based system capable delivering dose distributions at rate. This would employ carbon nanotube (CNT) field emission technology...
We present a theory of phase control which governs the time-dependent behaviour system involving one bound and decaying discrete state embedded in several continua belonging to ionization thresholds. Representative numerical results are shown, focusing on branching ratio as function relative two lasers, detuning, Rabi frequencies (or intensities). Specific quantitative Ca atom also reported.