A5100371645- Advanced Fiber Laser Technologies
- Advanced Optical Sensing Technologies
- Spectroscopy and Laser Applications
- Optical Systems and Laser Technology
- Physics of Superconductivity and Magnetism
- Laser Design and Applications
- Laser-induced spectroscopy and plasma
- Semiconductor Quantum Structures and Devices
- Conferences and Exhibitions Management
- Superconducting and THz Device Technology
- Semiconductor Lasers and Optical Devices
- Quantum and electron transport phenomena
- Advanced Thermodynamics and Statistical Mechanics
- Ocular and Laser Science Research
- Laser-Plasma Interactions and Diagnostics
- Photonic and Optical Devices
Nanjing University of Posts and Telecommunications
2023
Shanghai Institute of Microsystem and Information Technology
2022
University of Chinese Academy of Sciences
2018-2022
Technical Institute of Physics and Chemistry
2022
ShanghaiTech University
2018
Shandong Academy of Sciences
2010
Laser Research Institute
2010
Abstract Xue-Ren Hong et al. [EPL, 139 (2022) 14001] Details of the electron dynamics and Thomson backscattering electrons moving in a combined field tightly focused Gaussian laser pulse an external uniform magnetic are investigated. It is found that can be pushed out from by qualitative dynamic, leading to phenomenon symmetry envelope broken. In this comment, we investigate motion law under precise pulses, find longitudinal vector potential has non-negligible effect on motion, especially...
Broadband dual‐comb spectroscopy has attracted increasing interests due to its unique advantages in high spectral resolution, fast detection, and so on. Although the technique is relatively mature infrared wavelengths, it is, currently, not commercially capable of practical applications terahertz regime lack high‐performance broadband sources. In frequency range, electrically pumped quantum cascade laser (QCL) a suitable candidate for operation. resonant microwave injection locking widely...
High quality AlAs1-xBix layers with Bi composition of 3%-10.5% have been successfully grown by molecular beam epitaxy. The incorporation is confirmed Rutherford backscattering spectroscopy. For a 400 nm thick AlAsBi layer, the strain relaxation occurs when larger than 6.5%. Flux ratio calculated from Knudsen-cell model and Maxwell equation, according to geometrical relationship our equipment. increases increasing As-Al flux as well flux. extrapolation lattice constant hypothetic zincblende...
Dual-Comb Sources In article number 2100361, Juncheng Cao, Heping Zeng, and Hua Li co-workers experimentally demonstrate broadband quantum cascade laser dual-comb sources emitting in the terahertz frequency range by employing an off-resonant microwave injection. A numerical analysis based on a rate equation model reveals that wider lasing bandwidth higher degree of phase matching resulted from injection can be main reasons for observed operation. The demonstrated technique further adopted...
A novel heterodyne continuous wave lidar system based on single-mode fiber (SMF) components and instruments is reported. In order to improve the signal-to-noise ratio (SNR) of system, four causes producing carrier feed-through are presented, including: (1) return loss optical antenna; (2) direction circulator; (3) extinction acousto-optic frequency shifter (AOFS); (4) close object's reflection. Then theoretical analysis experimental study for methods eliminating conducted. The results...
The pulsed time-of-flight laser scanner can be used to detect intrusions of humans or foreign objects into user-defined zones, give alarm shut down hazardous equipment whenever the pre-defined zone is intruded. Working principles and system components are introduced, scanning techniques including transmitting, receiving, arrival time discrimination interval measurement discussed in detail. High-repetition-frequency, narrow pulse semiconductor transmitting circuit designed realized generate...
Abstract As an important component of the adiabatic demagnetization refrigerator (ADR), superconducting heat switch uses different thermal conductivities a metal in normal state and to turn on / off for continuous stage. Switch ratio is parameter evaluate performance switch, which related many factors. Peter Kittel calculated requirements single-stage multi-stage ADR. Based that, this paper focuses relationship between required operating parameters ADR system, especially leak effective cooling power.