In this thesis, millisecond pulsed laser was used to ablate solid target in gas or liquid to prepare various nanomaterials, meanwhile, the mechanisms of nanostructure formation were also studied.
本文采用毫秒脉冲激光作用气相和液相中固体靶材来制备不同成分和不同结构的纳米材料,研究毫秒脉冲激光形成纳米材料的机理及其优势。
The basic theory and method of wavelet transform of denoising and achromatic dispersion method are used to carry out the eptraction of the millisecond pulsar weak signal and the selective experiment research is made on the optimal threshold values of noises whereby the detection and inhibiting noises affer the accumulation of pulsar weak signal achromatic dispersion can be realized.
利用小波变换去除噪声的基本原理和方法及消色散方法对毫秒脉冲星极弱信号进行了提取,并对噪声进行了最佳阈值选取实验研究,实现了脉冲星弱信号消色散积累后的检测和抑噪。
The chaotic characteristic parameters,including the saturated correlative dimensions,Kolmogorov entropy and the largest Lyapunov exponent,were computed for the radiation process of individual pulse from millisecond pulsar J0437-4715.
为了研究脉冲星辐射机制中的非线性动力学特性,计算了毫秒脉冲星J0437-4715单个脉冲辐射强度时间序列的饱和关联维数、Kolmogorov熵和Lya-punov指数,统计了104个单个脉冲辐射强度时间序列的混沌特征参数的分布。
Long term timing stability for some millisecond pulsars is reviewed and analyzed.
在评述国际上毫秒脉冲星长期计时观测成果的基础上,比较了由毫秒脉冲星自转定义的脉 冲星时PT与原子时AT的长期稳定度。
A research on the timing method and the development of millisecond pulsars;
毫秒脉冲星计时的方法和发展研究
Research on the Synthesis of Nanodiamonds by Millisecond-pulse Laser;
毫秒脉冲激光合成纳米金刚石的研究
Synthesis of Novel Nanostructures by Using Millisecond Pulsed Laser
利用毫秒脉冲激光合成新型纳米结构
The Thermal Damage Research of Optical Materials under Millisecond-pulsed Laser Irradiations;
毫秒脉冲激光对金属和半导体材料热损伤的研究
The power of pulse of the ruby laser is about 100MW, and the width of pulse about 25ns.
采用的是红宝石激光器,脉冲功率100兆瓦,脉冲宽度25毫微秒.
osecond pulse height analyzer
毫微秒脉冲振幅分析仪
double pulse nanosecond oscillator
双脉冲毫微秒振荡器
Optical limiting of nanosecond laser pulses by stimulated Brillouin scattering
受激布里渊散射对纳秒激光脉冲光限幅规律
Theory Analysis of Fiber Grating Production Using Infrared Femtosecond
近红外飞秒脉冲激光制作光纤光栅的研究
Femtosecond Pulse Compression through Hollow-Core Photonic Bandgap Fibers
基于中空光子带隙光纤的飞秒激光脉冲压缩
pulsed submillimeter laser interferometer
脉冲亚毫米波激光干涉仪
Studies on Ultrashort Pulse Er～(3+)-doped Fiber Lasers;
飞秒掺Er～（3+）光纤激光脉冲产生机理与技术研究
Propagation of femtosecond laser pulses through metal-coated tapered fibre probe
锥形镀膜光纤探针中飞秒激光脉冲的传输
Spatial Shaping of Femtosecond Laser Pulse in Large-core Optical Fiber
大芯径光纤整形飞秒激光脉冲空间分布的研究
Femtosecond laser pulse precision machining microfluidic fiber devices and application
飞秒激光脉冲精密制作微流光纤器件及其应用
High Repetition,Single Mode Nanosecond all Fiber Laser
高重复频率、单模纳秒脉冲全光纤激光器
Optimum Design of Optics Structure for Femto-Second Laser Based on Cr~(4+):YAG Crystal
Cr~(4+):YAG飞秒脉冲激光器光路结构的优化设计
Effect of Saturable Absorber to Solid State Mode-Locked Femtescond Laser
饱和吸收体对飞秒脉冲固体激光锁模的影响
The Thermal Damage Theoretical Research of Solid Materials under Femtosecond Pulse Laser Irradiations;
飞秒脉冲激光对固体材料热损伤的研究