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首页> 外文期刊>Optics Letters >Optimization of a tabletop high-repetition-rate soft x-ray laser pumped in double-pulse single-beam grazing incidence
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Optimization of a tabletop high-repetition-rate soft x-ray laser pumped in double-pulse single-beam grazing incidence

机译：台式高重复率软X射线激光泵浦双脉冲单光束掠入射的优化

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摘要

This Letter reports on the optimization of a tabletop nickel-like molybdenum transient collisionally excited soft x-ray laser (SXRL) at 18.9 nm performed by a double-pulse single-beam grazing incidence pumping (DGRIP). This scheme allows for the first time, to our knowledge, the full control of the pump laser parameters including the pre-pulse duration optimally generating the SXRL amplifier under a grazing incidence. The single-beam geometry of the collinear double-pulse propagation guarantees the ideal overlap of the prepulse and main pulse from shot to shot resulting in a more efficient and highly stable SXRL output. SXRL energies up to 2.2 (mu)J are obtained with a total pump energy less than 1 J for several hours at a 10 Hz repetition rate without realignment under once optimized double pumping pulse parameters including energy ratio, time delay, pre-pulse and main pulse durations, and line focus width.
机译：这封信报告了通过双脉冲单光束掠入射入射泵浦（DGRIP）在18.9 nm处优化台式镍样钼瞬态碰撞激发软X射线激光（SXRL）的过程。据我们所知，该方案首次实现了对泵浦激光器参数的完全控制，包括在掠入射情况下最佳生成SXRL放大器的预脉冲持续时间。共线双脉冲传播的单光束几何结构确保了每次发射之间的预脉冲和主脉冲具有理想的重叠，从而产生了更高效，更稳定的SXRL输出。在一次优化的双倍泵浦脉冲参数（包括能量比，延时，预脉冲和主脉冲）之后，以10 Hz的重复频率在数小时内以不到1 J的总泵浦能量获得高达2.2μJ的SXRL能量脉冲持续时间和线聚焦宽度。

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