论文标题
Ultra-Short-Pulse高平均功率Megahertz-Repetition-Repetition-RepeTion-Cooherent Extremy-Extrem-plaviolet光源
Ultra-short-pulse high-average-power Megahertz-repetition-rate coherent extreme-ultraviolet light source
论文作者
论文摘要
高谐波产生（HHG）可在桌上设置中具有超短脉冲持续时间的相干极限辐射（XUV）辐射。这已经启用了大量的应用程序。几乎所有这些应用都将受益于高光子通量，以增加信噪比并减少测量时间。此外，需要最短的脉冲来研究像物理学，生物学，化学和物质科学一样多样化的田间动力学。在这项工作中，通过频率加倍和后压缩的纤维激光器的HHG证明了最新功能最强大的XUV源，在26.5 eV的单个谐波线中具有12.9 MW。同时，低于6 FS XUV脉冲持续时间低于先前所证明的光子通量级的超快速动力学。这个概念将极大地促进XUV辐射在科学和技术中的应用，并实现渴望光子的超快研究。
High harmonic generation (HHG) enables coherent extreme-ultraviolet (XUV) radiation with ultra-short pulse duration in a table-top setup. This has already enabled a plethora of applications. Nearly all of these applications would benefit from a high photon flux to increase the signal-to-noise ratio and decrease measurement times. In addition, shortest pulses are desired to investigate fastest dynamics in fields as diverse as physics, biology, chemistry and material sciences. In this work, the up-to-date most powerful table-top XUV source with 12.9 mW in a single harmonic line at 26.5 eV is demonstrated via HHG of a frequency-doubled and post-compressed fibre laser. At the same time sub-6 fs XUV pulse duration allows accessing ultrafast dynamics with an order of magnitude higher photon flux than previously demonstrated. This concept will greatly advance and facilitate applications of XUV radiation in science and technology and enable photon-hungry ultrafast studies.
