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Coherent synchrotron emission in transmission with double foil target

机译：双箔靶传输的相干同步发射

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摘要

Generation of intense single attosecond pulses from coherent synchrotron emission (CSE), in the transmitted direction of the laser-irradiated double foil targets, has been investigated theoretically and numerically. Unlike conventional CSE in the single foil target case, here the dense electron nanobunch is formed in the vacuum gap between two foils, which is composed of the electrons blown out from the first ultrathin foil. Owing to the existence of the vacuum gap, the electron nanobunch can be accelerated to more energy. In addition, more laser energy can penetrate through the nanobunch and get reflected from the second foil. These reflected lasers and electron nanobunches interact with each other and results in enhanced CSE and consequently, the generation of intense attosecond pulses. Particle-in-cell simulations show that a single attosecond pulse with duration of 18 as, photon energy 0.16 keV and peak intensity of 1.7 x 10(20) W/cm(2) can be obtained from the double-foil targets irradiated by a laser at intensity of 7.7 x 10(21) W/cm(2).
机译：从理论上和数值上，在激光照射双箔靶的透射方向上，从相干同步发射（CSE）产生强烈的单个抗索第脉冲脉冲。与传统的CSE不同于单个箔靶壳体，这里致密电子纳米统计在两个箔之间的真空间隙中形成，其由从第一超薄箔吹出的电子构成。由于真空间隙的存在，电子纳米统计统计占能够加速到更多能量。此外，更多的激光能量可以穿透纳米统计，并从第二箔反射。这些反射激光器和电子纳米轴承彼此相互作用，并导致增强的CSE，因此产生强烈的AtosoSecond脉冲的产生。粒子细胞仿真表明，持续为18的单个阳离子脉冲，光子能量＆GT; 0.16keV和1.7×10（20）W / cm（2）的峰值强度可以从照射的双箔靶数获得通过强度为7.7×10（21）W / cm（2）的激光。

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  • 作者

    Xu X. R.; Qiao B.; Chang H. X.; Zhang Y. X.; Zhang H.; Zhong C. L.; Zhou C. T.; Zhu S. P.; He X. T.;

  • 作者单位

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

    Inst Appl Phys &

    Computat Math Beijing 100094 Peoples R China;

    Peking Univ Sch Phys Ctr Appl Phys &

    Technol HEDPS Beijing 100871 Peoples R China;

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  • 正文语种 eng
  • 中图分类 等离子体物理学;
  • 关键词

    single attosecond pulse; coherent synchrotron emission; double-foil target;

    机译：单个AttoSecond脉冲;相干同步发射;双箔目标;

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