论文标题
飞秒激光脉冲的夹紧强度随着外部聚焦而变化
The clamped intensity of femtosecond laser pulses varying with gas pressure in the presence of external focusing
论文作者
论文摘要
我们对丝等血浆内部的夹紧激光强度进行了理论研究，这是气压和外部聚焦的函数。与在selffocuse条件下的夹紧强度不同，该条件独立于气压，夹紧强度随着气压而外，外部聚焦的强度会降低。我们的发现可以解释飞秒激光诱导的391-nm正向发射和荧光随氮气压力的信号的变化。
We perform a theoretical investigation of the clamped laser intensity inside the filament plasma as a function of gas pressure with external focusing. Unlike the clamped intensity under the selffocusing condition, which is independent on the gas pressure, the clamped intensity with external focusing decreases with the gas pressure. Our findings can explain the changes of the signals of femtosecond-laser-induced 391-nm forward emission and fluorescence with the nitrogen gas pressure.
