The mechanism of filamentation formed by femtosecond pulse laser beam propagating in atmosphere is investigated.
分析了飞秒激光脉冲在大气中传输时光丝的形成机理。
The results are consistent with theory and experiments of alien reports. It can provide reference for restraining filamentation.
该结果与国外报道的理论和实验研究吻合，可为研究抑制成丝提供参考。
Inner diameter of capillary has important effect on the spectrum broadening when used to restrict filamentation in high pressure gas.
采用空心毛细管束缚强飞秒激光脉冲在高压强气体中产生的成丝时，空心毛细管芯径对光谱展宽有着重要的影响。
With the incidence power gradually increasing, the beam will undergo optical collapse due to intense focusing, and then the formation of femtosecond multiple filamentation(MF) can be obtained.
继续增加激光入射功率时，光束因强烈聚焦发生崩塌而成多丝结构。
The simulated results can be used to explain the laser plasmas filamentation, the langmuir wave's excitation and collapse, and the energy equilibration over both langmuir wave and transverse wave.
利用数值模拟结果解释了激光等离子体中的成丝效应、朗缪尔波的激发及坍塌过程、朗缪尔等离激元与横等离激元相互作用过程中产生的能量均分等现象；
The simulated results can be used to explain the laser plasmas filamentation, the langmuir wave's excitation and collapse, and the energy equilibration over both langmuir wave and transverse wave.
利用数值模拟结果解释了激光等离子体中的成丝效应、朗缪尔波的激发及坍塌过程、朗缪尔等离激元与横等离激元相互作用过程中产生的能量均分等现象；
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