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

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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