Nonlinear energy deposition of femtosecond laser filamentation in the laser-induced snowfall formation

被引：1
|
作者：
Zeng, W. Qing [1 ]
Liu, Lei [1 ]
Gao, C. Tai [1 ]
Ju, J. Jing [2 ]
Zhan, J. Ke [1 ]
机构：
[1] Natl Univ Def Technol, Inst Meteorol & Oceanog, Nanjing 211101, Jiangsu, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
来源：
FIFTH INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER | 2019年 / 11046卷
基金：
中国国家自然科学基金;
关键词：
Ultrafast nonlinear optics; laser-induced snowfall; physical mechanism; energy deposition; INDUCED WATER CONDENSATION;
D O I：
10.1117/12.2522924
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Characteristics of energy deposition during filamentation are numerically investigated to understand the formation of different mass of snow with femtosecond laser pulses in a cloud chamber. The results show that the evolution of maximum airflow velocity and mass of snow is closely related to the amount of deposited energy. For the same input energy, the deposited energy is higher for laser pulse externally focused by an f=30 cm lens than an f=50 cm lens, which is in accordance with the higher airflow velocity and mass of snow in experiments with the former lens.
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页数：5
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