Coupling coefficient enhanced by prepulse in laser plasma propulsion

Abstract:

Compared with direct ablation, a prepulse is used to enhance the coupling coefficient in laser plasma propulsion. It is found that the coupling coefficient is related with the delay times between the main beam and the prepulse. At a delay time of 12 ns, the coupling coefficient reaches the maximum of 5.8 × 10^?5 N/W.

Key words:耦合系数 激光等离子推进 预脉冲 激光加热