Charpter 3 : this charpter investigated the propagation of one - cycle or few - cycle ultrashort pulsed beam in free space 第三章:这一章研究了单周期或更短的超短脉冲光束在真空中的传输问题。
In this thesis we study the propagation of the ultrashort pulsed beams by theoretical method and the numerical simulation 本文在理论上研究了超短激光脉冲光束的传输问题,并给出了数值模拟结果。
Recently focusing of optical beams and pulse beams by cross - phase modulation has been considered both theoretically and experimentally 近年通过交叉相位调制效应使光束和脉冲光束压缩的研究较多。
In the paper , the propagation of the light , especially the propagation of the ultra - short pulsed beam was investigated in theory 本文从几个方面在理论上研究了激光传输特别是超短脉冲激光传输的问题。
Chapter 4 : in this chapter the influence of the spectrum property on the non - paraxial property of the pulsed beam is discussed : firstly the influence of the spectrum property on the paraxial approximation of pulsed beam is analysed 第四章:在这一章里讨论了脉冲频谱性质对其非傍轴特性的影响。