首页> 外文会议>Frontiers in ultrafast optics: biomedical, scientific, and industrial applications XVI >Development of a kilowatt-class, joule-level ultrafast laser for driving compact, high average power coherent EUV / soft x-ray sources
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Development of a kilowatt-class, joule-level ultrafast laser for driving compact, high average power coherent EUV / soft x-ray sources

机译:研发千瓦级,焦耳级超快激光器,用于驱动紧凑的,高平均功率的相干EUV /软X射线源

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摘要

Our recent progress in the development of high energy / high average power, chirped pulse amplification laser systems based on diode-pumped, cryogenically-cooled Yb:YAG amplifiers is discussed, including the demonstration of a laser that produces 1 Joule, sub-10 picosecond duration, λ = 1.03μm pulses at 500 Hz repetition rate. This compact, all-diode-pumped laser combines a mode-locked Yb:KYW oscillator and a water-cooled Yb:YAG preamplifer with two cryogenic power amplification stages to produce 1.5 Joule pulses with high beam quality which are subsequently compressed. This laser system occupies an optical table area of less than 1.5×3m~2. This laser was employed to pump plasma-based soft x-ray lasers at λ = 10-20nm at repetition rates ≥100 Hz. To accomplish this, temporally-shaped pulses were focused at grazing incidence into a high aspect ratio line focus using cylindrical optics on a high shot capacity rotating metal target. This results in an elongated plasma amplifier that produces microjoule pulses at several narrow-linewidth EUV wavelengths between λ = 109A and 189A. The resulting fraction of a milliwatt average powers are the highest reported to date for a compact, coherent source operating at these wavelengths, to the best of our knowledge.
机译:讨论了我们在基于二极管泵浦,低温冷却的Yb:YAG放大器的高能量/高平均功率,chi脉冲放大激光系统的开发方面的最新进展,包括演示了产生1焦耳,低于10皮秒的激光器的演示。持续时间为λ=1.03μm脉冲,重复频率为500 Hz。这种紧凑的全二极管泵浦激光器将锁模Yb:KYW振荡器和水冷Yb:YAG前置放大器与两个低温功率放大级结合在一起,以产生1.5焦耳的高光束质量脉冲,随后对其进行压缩。该激光系统的光学平台面积小于1.5×3m〜2。该激光器用于泵浦基于λ= 10-20nm的等离子体软X射线激光器,重复频率≥100 Hz。为了实现这一点,使用圆柱形光学器件在高发射能力的旋转金属靶上,将时间形状的脉冲聚焦在掠入射上,形成高纵横比的线聚焦。这导致了一个细长的等离子体放大器,该放大器在λ= 109A和189A之间的几个窄线宽EUV波长处产生微焦耳脉冲。据我们所知,对于在这些波长下工作的紧凑型相干光源而言,所产生的毫瓦平均功率分数是迄今为止报道的最高值。

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  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者单位

    XUV Lasers, PO Box 273251, Fort Collins, CO, USA 80527,Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA 80523;

    Department of Physics, Colorado State University, Fort Collins, CO, USA;

    Department of Physics, Colorado State University, Fort Collins, CO, USA;

    XUV Lasers, PO Box 273251, Fort Collins, CO, USA 80527;

    Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA 80523;

    XUV Lasers, PO Box 273251, Fort Collins, CO, USA 80527,Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA 80523;

    Department of Physics, Colorado State University, Fort Collins, CO, USA;

    XUV Lasers, PO Box 273251, Fort Collins, CO, USA 80527,Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA 80523;

    XUV Lasers, PO Box 273251, Fort Collins, CO, USA 80527,Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO, USA 80523,Department of Physics, Colorado State University, Fort Collins, CO, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ultrafast lasers; solid state lasers; diode-pumped lasers; EUV; soft x-ray lasers;

    机译:超快激光器固态激光器二极管泵浦激光器; EUV;软X射线激光器;

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