Ideally , the voltage ’ s transmission efficiency of blumlein can reach to 100 percent , which is two times of the single pulse - forming line ’ s , so it will be applied widely in ultra - wideband source circuit 而且理想情况下双脉冲形成网络的电压传输效率可达到百分之百,是单形成线的2倍,使其将会在超短脉冲源产生电路中得到广泛应用。
The energy transmission along the axes is accord with the academic calculation . under simultaneity driven , the energy radiated by point source array increasing according to cell number is proved by experiment 超短脉冲单辐射器轴线上能量传播的实验与理论曲线几乎一致，同步激励时点源阵辐射的能量按单元数平方律增加得到了较好的实验验证。
Chapter 1 : the development of the investigation about the free - propagation of ultra - short pulsed beam is introduced , and the necessity of the investigation about the non - paraxial propagation of the ultra - short pulsed beam in free space is discussed 第一章：本章回顾了超短脉冲光束传输的研究进展并讨论了超短脉冲光束非傍轴传输研究的意义。
We have studied the propagating properties of ultrashort pulses in the clbo crystal , analyzed theoretically and simulated numerically the optical parametric properties of interaction between ultrashort pulses and the clbo crystal 论文完成了超短脉冲激光在clbo晶体中传播特性的分析，并对clbo晶体的超短脉冲参量特性进行了理论分析和数值模拟。
When the spatial parameter a is small , the non - paraxial effect does n ' t affect the temporal profile of the beam . however , when a becomes relatively larger , it influences the temporal profile greatly 当空间参数较小时超短脉冲贝塞尔光束的时间波形不受非近轴效应影响；然而当空间参数较大时，非近轴效应影响超短脉冲贝塞尔光束的时间波形。
As we known that the laser pulse energy will be attenuated in the turbid media and the pulse shape will be changed by scattering and absorption . besides , the ultra short laser pulse will be widened by the diffusive scattering 由于超短脉冲激光在混浊介质中传输时，将因漫散射而使脉冲展宽，因此漫反射、漫透射光中必然含有介质光学特征的信息。
The conditions for long distance propagation and self - guiding are given . 3 . an optical amplification system for 10 ps krf laser with polarization multiplexing is developed and the energy of 140 ml is extracted 发展了一种适用于超短脉冲激光的光学偏振放大技术，并应用于10pskrf激光放大系统中，可在有限的激光输出口径内有效地提取激光的输出能量。
So far the researches on ultrashortpulse laser - matter interaction concentrated on infrared regime , yet ultraviolet laser has the advantage in intense field physics and icf researches for its short wavelength and less nonlinear effects 迄今为止，超短脉冲激光及其与物质相互作用的研究大都集中于红外光谱范围，而紫外准分子短脉冲激光系统由于其波长短、非线性效应小而具有良好的聚焦性能。
The resonance - enhanced multi - photon ionization ( rempi ) spectrum of no in the region of 420 - 680nm is obtained by using optical parameter generator and amplifier ( opg / opa ) as radiation source . the opg / opa was pumped by nd : yag ( quantel ) laser 本工作以超短脉冲( 35ps ) nd ： yag激光的三倍频输出( 355nm )泵浦光学参量发生放大器作为激发源，获得了no分子在420 680nm波长范围内的多光子共振离化光谱。
For ultrashort pulsed beam propagation , to study the spatiotemporal instability . consider the time delayed response , a new instability region appeares . the position of this region and the magnitude of the gain depend on the characteristic raman response time 对于超短脉冲而言，介质的响应也不能看做瞬时的，如果考虑拉曼效应产生的响应的延迟，会产生一对增益边带，其位置和大小由响应时间决定。
