激光脉冲

• The study of the interaction of ultra - short ultra - intense laser pulses with overdense plasmas , which is motivated primarily by the fast ignition scheme of inertial confinement fusion , has received more and more attention
  近年来，随着超短超强激光脉冲的迅猛发展和“快点火”研究的深入，超短超强激光脉冲与高密度等离子体相互作用成为当前激光等离子体领域的一个研究热点。
• If thinking over the process of fabriction , the light solidification unit is the volume of the single laser pulse solids the metal powder , or the unit volume of the solidification trance that gained by the single track laser solidfying the mental powder
  从成型工艺角度上讲,光固化单元就是单个激光脉冲固化固体金属粉末的体积或者单道激光光束固化金属粉末所获得固化轨迹的单位体积。
• As an innovation , the precise control of exeimer laser external trigging was achieved , including external trigging pulse and frequency , which makes possible the linked motion of xyz worktable , laser external trigging , and rotatable table
  在硬件设计上的创新点是我们实现了对准分子激光外触发的精确控制，包括激光脉冲个数和脉冲频率。从而实现了工作台位移运动与激光外触发、转台转动的联动。
• 4 . the lpfgs are used in single wavelength er - doped fiber amplifiers ( edfas ) as a spontaneous emission noise ( ase ) filter , and the gain of the edfa is increased by 7db and the noise figure ( nf ) is decreased by 0 . 5db , for the first time
  4 、成功研制了掺铒光纤放大器,首次将高频co2激光脉冲写入的长周期光纤光栅应用到掺铒光纤放大器中作为自发辐射噪声滤波器,使edfa的增益提高了7db 、噪声系数降低了0 . 5db 。
• We studied the effects of pulse - shape , an additional static electric field and different initial states on ionization probability and hhg . we did so by representing the results of a series of numerical experiments on a one - dimensional model hydrogen atom
  本文将采用数值计算法来求解含时schrodinger方程，研究在一维氢原子模型中，外加的平行静电场，不同形状的激光脉冲以及原子处于不同初始态对谐波谱线和电离率的影响。
• The spectrum evolution of the femtosecond laser pulse in a three - level organic molecular medium ( 4 , 4 ' - bis ( dimethylamino ) stilbene ) is studied theoretically by solving the maxwell - bloch equations using an iterative predictor - corrector finite - difference time - domain method
  摘要通过采用预估校正的时域有限差分法求解麦克斯韦布洛赫方程，我们研究了飞秒激光脉冲在三能级有机分子（ 4 , 4 ' -二甲氨基二苯乙烯分子）介质中传播时脉冲的频谱演化情况。
• The rapid advances of laser technology in the past few decades have made the production of extremely short laser pulses , containing only a few , even only one or nearly one , cycles of optical oscillations , which led to many new questions
  随着激光技术的快速发展，实验中已经可以得到接近光学振荡周期的超短激光脉冲。此类脉冲的时间和空间部分在传输过程中会相互耦合、相互影响，从而带来一系列的新的传输效应，成为当今激光领域的一个研究热点。
• The nlo properties of the essa films were measured with the ns / ps laser by using the z - scan technique . the materials c60 derivatives ( mono - adduct tmaf , tri - adduct ttaf and hexa - adduct thaf ) and pss act as the positive charged electrolytes and opposite electrolyte , respectively
  利用纳秒和皮秒激光脉冲作为光源,采用z - scan技术测量了以c60衍生物(单加成tmaf 、三加成ttaf和六加成thaf )为正电荷电解质, pss为负电荷电解质的静电自组装薄膜的光学非线性。
• Theoretical result indicated that the self - q - switching in er - doped fiber laser based on sbs process was feasible in mathematics , and the conclusion has been presented that the dynamic characteristics of output pulse by sbs are effected tinily by the length of er - doped fiber in the system
  仿真实验结果表明利用单模光纤的受激布里渊散射效应可在掺铒光纤激光器系统内稳定形成自调q过程,同时得到sbs产生激光脉冲动态特性受到掺铒光纤长度改变量影响不大这一结论。