Chinese Optics Letters, 2018, 16 (6): 061403, Published Online: Jul. 2, 2018
Sub-picosecond chirped laser pulse-induced airflow and water condensation in a cloud chamber Download: 695次
Abstract
Sub-picosecond chirped laser pulse-induced airflow and water condensation were investigated in a cloud chamber. The results indicate that the positively chirped sub-picosecond laser pulses generate a more uniform intensity distribution inside the plasma column, leading to a weaker airflow and an elliptic-shaped snow pile. The negatively chirped sub-picosecond laser pulses generate a spark-like intensity distribution inside the plasma column, which produces a wider range of airflow and a round snow pile. The amount of snow weight and the concentration of NO 3 are found to be dependent on the intensity distribution inside the plasma column. The visibly stronger plasma column generates much more snow and a higher concentration of NO 3 . These experimental results provide a reference for sub-picosecond laser-induced water condensation in realistic atmospheric conditions.
Haiyi Sun, Yonghong Liu, Jiansheng Liu, Jingjing Ju, Cheng Wang, Xingkai Hu, Zhongbin Zhu, Yaoxiang Liu, Tiejun Wang, See Leang Chin, Ruxin Li, Zhizhan Xu. Sub-picosecond chirped laser pulse-induced airflow and water condensation in a cloud chamber[J]. Chinese Optics Letters, 2018, 16(6): 061403.