The measurement and analysis of the prolonged lifetime of the plasma channel formed by short pulse laser in air
大气中激光等离子体通道寿命的延长及测量分析

The Tikhonov regularization method is applied to analyze the lifetime of the pl asma channel produced by femtosecond laser pulses propagating in air. Experiment s show that by using double laser pulses separated by several nanoseconds, the lifetime of the plasma channel can be prolonged by 5 times that of only using o ne laser pulse.