A5033320584- Advanced Fiber Laser Technologies
- Photonic Crystal and Fiber Optics
- Photonic and Optical Devices
- Advanced Measurement and Metrology Techniques
- Thermography and Photoacoustic Techniques
- Advanced Fiber Optic Sensors
- Advanced Chemical Sensor Technologies
- Laser-Matter Interactions and Applications
- Polyoxometalates: Synthesis and Applications
- Advanced Photonic Communication Systems
- Optical measurement and interference techniques
- Optical Systems and Laser Technology
- Advanced Surface Polishing Techniques
- Flow Measurement and Analysis
- Advanced Nanomaterials in Catalysis
- Photoacoustic and Ultrasonic Imaging
- 2D Materials and Applications
- Semiconductor Lasers and Optical Devices
- Scientific Measurement and Uncertainty Evaluation
- Nanocluster Synthesis and Applications
- Spectroscopy and Laser Applications
- Orbital Angular Momentum in Optics
- Solid State Laser Technologies
- Terahertz technology and applications
- Optical Network Technologies
Jiangsu University of Science and Technology
2024
Beijing Institute of Technology
2023-2024
Southeast University
2018-2022
University of Southampton
2021
Hubei Polytechnic University
2019-2020
Huangshi Central Hospital
2019
Yangzhou University
2015-2018
Central China Normal University
2012-2016
Harbin Institute of Technology
2005-2006
We report an efficient continuous-wave self-Raman laser at 1176 nm based on a 20-mm-long composite YVO4/Nd:YVO4/YVO4 crystal and pumped by wavelength-locked 878.9 diode laser. A maximum output power of 5.3 W is achieved pump 26 W, corresponding to optical conversion efficiency 20% slope 21%. The Raman threshold for the was only 0.92 W. results reveal that in-band pumping significantly enhances lasers virtue improved absorption relieved thermal loading.
The magnetism of hole doped 1T-MX2 (M = Zr, Hf; X S, Se) monolayers is systematically studied by using first principles density functional calculations. pristine are semiconductors with nonmagnetic ground states, which can be transformed to ferromagnetic states the approach doping. For unstrained monolayers, spontaneous magnetization appears once above critical (1014 cm-2), where p orbital S or Se atoms contributes most magnetic moment. As tensile strains exceed 4%, moments per ZrS2 and HfS2...
A system, which uses a single-mode optical fiber to suppress the laser beam drifts, and feedback control further reduce drifts of primary collimated beam, is proposed enhance directional stability beams. The linear angular beams are separated through light path arrangement detected using quadrant position detectors, controlled two-dimensional drift systems according their magnitudes detected. Theoretical analyses experimental results indicate that collimation accuracy 0.7×10−7rad can be...
In order to further improve the rotation accuracy of ultraprecision roundness measuring instruments, a new single-step error separation technique (SEST) is proposed accurately separate instrument spindle and workpiece error. This done by first selecting an appropriate angle rotating through small with respect spindle, then mixed errors A(n) B(n) including g(θ) z(θ) before after rotation, finally achieving accurate Fast Fourier Transformation harmonic analysis. Theoretical analysis simulation...
We propose a new laser reflection confocal large-radius measurement (RCLRM) method. By utilizing the precise correspondence relationship between peak point of curve and convergence multi-reflected measuring beam, we identify position test lens. With distance interferometer, obtain variation lens with different times. Therefore, fast is achieved shorter system. Additionally, RCLRM significantly enhances accuracy by using conic fitting. The theoretical analyses experiments indicate that...
The bandwidth of the ±1-order Kelly sidebands mode-locking fiber lasers is investigated for narrow terahertz (THz) signal generation. Four key factors influencing are found and analyzed in detail. Then, a numerical model presented manipulating parameters laser. Two designed generating sidebands. reduced to 0.041 nm 0.021 with different spacings. Using data obtained from optical spectra sidebands, frequency generated THz signals obtained. Finally, 7.16 GHz 3.4 GHz, respectively.
We have developed a high-intensity, tunable non-collinear optical parametric amplifier (NOPA). This setup uses multiple fused silica (SiO2) plates to generate high-pulse-energy supercontinuum white light as the seed. By employing pump pulses and seed for amplification, we produce highly coherent, femtosecond pulsed laser. approach of leveraging boost NOPA's output energy addresses increasing demand enhanced NOPA sources in ultrafast science nonlinear optics.