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Resonance-enhanced high harmonic in meta ions driven by elliptically polarized laser pulses

机译：通过椭圆偏振激光脉冲驱动的元离子中的共振增强高谐波

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摘要

Resonance enhancement of a single order harmonic has been a main attractive feature in high-harmonic generation from laser ablated plumes of metals. Although it has been extensively investigated experimentally and theoretically, studies so far have focused only on linearly polarized driving fields. In this Letter, we study the dependence of the resonant harmonic yield in tin ions on the driving laser ellipticity. We find that the resonance leads to a less rapid decay of the harmonic yield as a function of driving ellipticity, and it is qualitatively reproduced by quantum mechanical simulations. To the best of our knowledge, our findings provide a new type of evidence for supporting previously proposed mechanisms for enhancement. (C) 2021 Optical Society of America
机译：单次谐波的共振增强是激光烧蚀金属羽流产生高次谐波的一个主要吸引人的特点。尽管已经在实验和理论上对其进行了广泛的研究，但迄今为止的研究仅集中在线偏振驱动场上。在这封信中，我们研究了驱动激光椭圆度对锡离子共振谐波产额的依赖性。我们发现，作为驱动椭圆率的函数，共振导致谐波产额的衰减不那么快，量子力学模拟定性地再现了这一现象。据我们所知，我们的发现为支持之前提出的增强机制提供了一种新的证据。（2021）美国光学学会

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  • 来源
    《Optics Letters》 |2021年第10期|共4页
  • 作者

    Lai Yu Hang; Rao Konda Srinivasa; Liang Jingguang; Wang Xu; Guo Chunlei; Yu Weili; Li Wei;

  • 作者单位

    Chinese Acad Sci Changchun Inst Opt Fine Mech &

    Phys State Key Lab Appl Opt GPL Changchun 130033 Peoples R China;

    Chinese Acad Sci Changchun Inst Opt Fine Mech &

    Phys State Key Lab Appl Opt GPL Changchun 130033 Peoples R China;

    Chinese Acad Sci Changchun Inst Opt Fine Mech &

    Phys State Key Lab Appl Opt GPL Changchun 130033 Peoples R China;

    China Acad Engn Phys Grad Sch Beijing 100193 Peoples R China;

    Univ Rochester Inst Opt Rochester NY 14627 USA;

    Chinese Acad Sci Changchun Inst Opt Fine Mech &

    Phys State Key Lab Appl Opt GPL Changchun 130033 Peoples R China;

    Chinese Acad Sci Changchun Inst Opt Fine Mech &

    Phys State Key Lab Appl Opt GPL Changchun 130033 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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