Semi-classical models for ultra-fast multi-electron phenomena in intense electro-magnetic laser fields

强电磁激光场中超快多电子现象的半经典模型

基本信息

  • 批准号:
    EP/N031326/1
  • 负责人:
  • 金额:
    $ 42.9万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2016
  • 资助国家:
    英国
  • 起止时间:
    2016 至 无数据
  • 项目状态:
    已结题

项目摘要

Attoscience is one of the great scientific challenges of the 21st century. Attoseconds and sub-femtoseconds are the natural time scale for multi-electron effects during the ionization and break-up of atoms and molecules. The proposed research will explore the physical mechanisms underlying correlated multi-electron dynamics and devising schemes to probe/control these mechanisms. Correlated electron dynamics is of fundamental interest to attosecond technology. For instance, an electron extracted from a molecule carries information determining the electronic molecular orbital and position of the nuclei, thus paving the way for molecular imaging. Moreover, the proposed work will explore magnetic field and quantum interference effects on attosecond processes. These effects are crucial for fully understanding many phenomena, such as the generation of attosecond pulses and holography with photoelectrons.The overall aim of the proposed work is to explore attosecond phenomena, magnetic field and interference effects during multi-electron ionization in atoms and multi-center molecules triggered by ultra-short and ultra-strong near-infrared and mid-infrared laser pulses. The rapid experimental advances place these phenomena at the forefront of Attoscience. New theoretical tools are urgently needed to address the challenges facing this field. In response to this quest, I offer novel, efficient and sophisticated semi-classical methods that are much faster than quantum-mechanical ones and that allow for significant insights into the physical mechanisms. These semi-classical techniques are appropriate for ionization processes through long-range Coulomb forces. Using these techniques, I will address some of the most fundamental problems facing Attoscience. My objectives are:1) Account for non-dipole effects to explore photon momentum sharing between electrons and ions in two-electron atoms and diatomic molecules driven by near-IR and mid-IR laser pulses.3) Account for non-dipole and interference effects to explore "frustrated" ionization and non-sequential double ionization in two-electron atoms and diatomic molecules driven by mid-IR laser pulses.4) Explore non-sequential and "frustrated" ionization in two- and three-electron three-center molecules driven by near-IR laser pulses.
Attoscience是21世纪世纪最大的科学挑战之一。阿秒和亚飞秒是原子和分子电离和分裂过程中多电子效应的自然时间尺度。拟议的研究将探索相关多电子动力学的物理机制,并设计方案来探测/控制这些机制。关联电子动力学是阿秒技术的基础。例如,从分子中提取的电子携带确定电子分子轨道和原子核位置的信息,从而为分子成像铺平了道路。此外,拟议的工作将探讨磁场和量子干涉对阿秒过程的影响。这些效应对于充分理解阿秒脉冲的产生和光电子全息等现象至关重要。本论文的总体目标是研究超短超强近红外和中红外激光脉冲触发原子和多中心分子中多电子电离过程中的阿秒现象、磁场和干涉效应。快速的实验进展将这些现象置于阿托科学的前沿。迫切需要新的理论工具来应对这一领域面临的挑战。为了回应这一探索,我提供了新颖、高效和复杂的半经典方法,这些方法比量子力学方法快得多,并且可以对物理机制进行重要的洞察。这些半经典技术适用于通过长程库仑力的电离过程。使用这些技术,我将解决Attoscience面临的一些最基本的问题。本文的研究目标是:1)考虑非偶极效应,研究近红外和中红外激光脉冲驱动下双电子原子和双原子分子中电子和离子之间的光子动量共享; 3)考虑非偶极效应和干涉效应,研究中红外激光脉冲驱动下双电子原子和双原子分子中的“阻挫”电离和非序贯双电离; 4)研究近红外激光脉冲驱动下双电子和三电子三中心分子中的非序贯和“阻挫”电离。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Frustrated double ionization in two-electron triatomic molecules
  • DOI:
    10.1103/physreva.94.043408
  • 发表时间:
    2016-04
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    A. Chen;H. Price;A. Staudte;A. Emmanouilidou
  • 通讯作者:
    A. Chen;H. Price;A. Staudte;A. Emmanouilidou
Enhancing frustrated double ionisation with no electronic correlation in triatomic molecules using counter-rotating two-color circular laser fields
使用反向旋转双色圆形激光场增强三原子分子中无电子相关性的受阻双电离
  • DOI:
    10.48550/arxiv.1908.06262
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Katsoulis G
  • 通讯作者:
    Katsoulis G
Non-dipole recollision-gated double ionization and observable effects
Signatures of magnetic-field effects in nonsequential double ionization manifesting as backscattering for molecules versus forward scattering for atoms
  • DOI:
    10.1103/physreva.103.033115
  • 发表时间:
    2020-12
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    G. P. Katsoulis;M. Peters;A. Staudte;R. Bhardwaj;A. Emmanouilidou
  • 通讯作者:
    G. P. Katsoulis;M. Peters;A. Staudte;R. Bhardwaj;A. Emmanouilidou
Fingerprints of slingshot non-sequential double ionization on two-electron probability distributions
  • DOI:
    10.1038/s41598-019-55066-1
  • 发表时间:
    2019-04
  • 期刊:
  • 影响因子:
    4.6
  • 作者:
    G. P. Katsoulis;A. Emmanouilidou
  • 通讯作者:
    G. P. Katsoulis;A. Emmanouilidou
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Agapi Emmanouilidou其他文献

Construction of a natural partition of incomplete horseshoes.
不完整马蹄形自然分区的构建。
  • DOI:
    10.1063/1.1859111
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    C. Jung;Agapi Emmanouilidou
  • 通讯作者:
    Agapi Emmanouilidou

Agapi Emmanouilidou的其他文献

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{{ truncateString('Agapi Emmanouilidou', 18)}}的其他基金

Ultra-fast three and four-electron dynamics in intense electro-magnetic laser fields
强电磁激光场中的超快三电子和四电子动力学
  • 批准号:
    EP/W005352/1
  • 财政年份:
    2021
  • 资助金额:
    $ 42.9万
  • 项目类别:
    Research Grant
Control and Imaging of processes triggered by X-ray pulses in multi-center molecules
多中心分子中 X 射线脉冲触发的过程的控制和成像
  • 批准号:
    EP/J017183/1
  • 财政年份:
    2012
  • 资助金额:
    $ 42.9万
  • 项目类别:
    Research Grant
Ionization of multi-electron atomic and molecular systems driven by intense and ultrashort laser pulses
强超短激光脉冲驱动的多电子原子和分子系统的电离
  • 批准号:
    EP/H003177/1
  • 财政年份:
    2009
  • 资助金额:
    $ 42.9万
  • 项目类别:
    Fellowship
Double Ionization of Driven Diatomic Molecules
驱动双原子分子的双电离
  • 批准号:
    0855403
  • 财政年份:
    2009
  • 资助金额:
    $ 42.9万
  • 项目类别:
    Standard Grant

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