Effect of delay time between pre-pulse and main pulse on single-pass and double-pass amplification of 46.9 nm laser

In this paper, the influence of the delay time between the pre-pulse and the main pulse on the double-pass amplified 46.9 nm laser was studied for the first time, to the best of our knowledge, by using a high-precision polished SiC slice as a rear mirror. The temporal and spatial characteristics of the output laser were measured separately to investigate the effect of the delay time on the laser characteristics. The energy of the double-pass amplified laser was between 510 vJ and 890 vJ. In addition, a theoretical model of double-pass amplification was established to analyze the effect of the delay time on the double-pass amplified 46.9 nm laser.

Automated summary

In this paper, the influence of delay time on the double-pass amplified 46.9 nm laser was studied using a high-precision polished SiC slice as a rear mirror. The temporal and spatial characteristics of the output laser were measured to investigate the effect of delay time. The energy of double-pass amplified laser ranged from 510 vJ to 890 vJ.