Laser-induced water condensation in air
Laser-induced water condensation in air
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DOI：
10.1109/cleoe.2011.5943024
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发表时间：
2010-07
期刊：
影响因子：
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通讯作者：
J. Kasparian;P. Rohwetter;K. Stelmaszczyk;Z. Hao;S. Henin;N. Lascoux;W. Nakaema;Y. Petit;M. Queiß
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文献类型：
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作者：
J. Kasparian;P. Rohwetter;K. Stelmaszczyk;Z. Hao;S. Henin;N. Lascoux;W. Nakaema;Y. Petit;M. Queiß
按需触发降雨是人类古老的梦想，具有巨大的潜在社会经济效益。我们证明，水云凝结可以诱导在自由，亚饱和大气中的超短激光脉冲产生的自引导电离丝。灯丝[1]是由克尔聚焦和在非线性焦点释放的自由电子以及克尔效应[2]饱和的散焦之间的动态平衡产生的。它们的鲁棒性使它们能够有效地通过扰动大气传播，从而实现大气应用[1]，如闪电控制[3]。
Triggering rain on-demand is an old dream of mankind, with a huge potential socio-economical benefit. We demonstrate that water cloud condensation can be induced in the free, sub-saturated atmosphere by self-guided ionized filaments generated by ultrashort laser pulses. Filaments [1] result from a dynamic balance between Kerr focusing, and defocusing by both the free electrons released at the non-linear focus and the saturation of the Kerr effect [2]. Their robustness allows them to propagate efficiently through perturbed atmospheres, allowing atmospheric applications [1] like lightning control [3].