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首页> 外文会议>Conference on Soft X-Ray Lasers and Applications V; Aug 6-7, 2003; San Diego, California, USA >Temporal Characterization of a Picosecond Laser-Pumped X-ray Laser (for Applications)
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Temporal Characterization of a Picosecond Laser-Pumped X-ray Laser (for Applications)

机译：皮秒激光泵浦X射线激光的时间特性（用于应用）

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摘要

Compact soft x-ray laser sources are now used routinely for various applications primarily because of their high repetition rate, high photon fluence and short pulse duration characteristics. For some of these applications, for example interferometry of high density laser-produced plasmas, longer optical drive pulses, 6 ― 13 ps (FWHM), have been implemented to maximize the x-ray output and coherence. It is therefore important to know the x-ray laser pulse length, shape and repeatability for these specific experiments as a baseline measurement but also to better understand the temporal behavior as a function of the pumping conditions in general. We report a detailed temporal characterization of the picosecond-driven 14.7 nm Ni-like Pd ion x-ray laser on the Compact Multipulse Terawatt (COMET) laser at LLNL using an ultrafast x-ray streak camera measurement of a horizontal slice of the near-field x-ray laser pattern. This is measured as a function of the chirped pulse amplification pumping laser conditions, including varying the pump pulse from 0.5 ― 27 ps (FWHM), varying the plasma column length as well as investigating traveling wave (TW) and non-TW irradiation conditions.
机译：紧凑型软X射线激光源现在因其高重复率，高光子注量和短脉冲持续时间特性而被常规用于各种应用。对于这些应用中的某些应用，例如高密度激光产生的等离子体的干涉测量法，已经实现了更长的6到13 ps（FWHM）的光驱动脉冲，以最大化X射线输出和相干性。因此，重要的是要了解这些特定实验的X射线激光脉冲长度，形状和可重复性，作为基线测量值，而且通常还应更好地了解随泵浦条件而变的时间行为。我们报告了在LLNL的紧凑型多脉冲兆瓦（COMET）激光上使用皮秒驱动的14.7 nm Ni状Pd离子X射线激光的详细时间特征，该激光使用超快X射线条纹相机测量近距离的水平切片场X射线激光图。这是the脉冲泵浦激光条件的函数，包括从0.5到27 ps（FWHM）改变泵浦脉冲，改变等离子体柱长以及研究行波（TW）和非TW辐照条件。

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