论文标题
在单脉冲飞秒下,在LIF的单脉冲下,单周循环轻弹自我重建
Mid IR single-cycle light bullet self-reconstruction after an air gap under single-pulse femtosecond filamentation in LiF
论文作者
论文摘要
在LIF中,在单脉冲飞秒中,通过气隙渗透了极度压缩的波包弹弹(LB)的研究结果。它通过激光颜色方法和数值模拟揭示,单个周期LB是在宽度高达0.5 mm之前形成的单个周期LB,在间隙后在LIF中经过一定距离后,完全恢复了。在间隙之前,此距离随间隙宽度和LB途径非线性增加。气隙中的LB具有强烈收敛的波前,聚焦半径为20-100μm,其腰部后的差异大大低于高斯束的差异。
The results of investigation of extremely compressed wave packet-light bullet (LB) penetration through an air gap under single-pulse femtosecond Mid IR filamentation in LiF are presented. It is revealed by the laser coloration method and from numerical simulations that a single-cycle LB, which was formed before an air gap up to 0.5 mm width, completely recovered after passing some distance in LiF after the gap. This distance increases nonlinearly with the gap width and LB pathway before the gap. LB in the air gap has a strongly convergent wave front with focusing radius of 20-100 μm and its divergence after the waist is considerably less than that of Gaussian beam.