Looking inside the tunnelling barrier: I. Strong field ionisation from orbitals with high angular momentum in circularly polarised fields

Looking inside the tunnelling barrier: I. Strong field ionisation from orbitals with high angular momentum in circularly polarised fields
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观察隧道势垒内部:I 圆偏振场中高角动量轨道的强场电离

DOI:
10.1088/1361-6455/aad130
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发表时间:
2018
期刊:
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子:
--
通讯作者:
O. Smirnova
O. Smirnova
中科院分区:
--
文献类型:
--
作者:
J. Kaushal;O. Smirnova

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在这里以及在两篇配套论文中,我们使用依赖时间的分析 R 矩阵 (ARM) 理论来考虑电子-核心相互作用对 (i) 强场电离对初始状态下电子旋转感的敏感性和 (ii) 电子自旋极化的影响。 ARM 是一种严格的强场电离方法,它利用强激光场中电子动力学的半经典性质,并在时间传播中自然地结合了复值经典轨迹。虽然复时间的出现与光学隧道相关,但复坐标反映了电子对强激光场响应的非绝热性。我们重点关注子势垒区的非绝热电子核相互作用,并展示它如何影响具有强电子核相互作用的多电荷原子离子中具有高角动量 ℓ= 2, 3 的轨道的电离。在本文中,我们讨论了子周期电离产率,而在配套论文中,我们重点关注长程核心电势对从经典禁区出现的光电子的“初始条件”(从 ARM 角度来看,配套论文 II)的影响以及喷射电子的自旋极化(配套论文 III)。
Here and in the two companion papers we use time-dependent analytical R-Matrix (ARM) theory to consider the impact of electron-core interaction on (i) sensitivity of strong field ionisation to the sense of electron rotation in the initial state and (ii) electron spin polarisation. ARM is a rigorous approach to strong field ionisation that takes advantage of the semiclassical nature of electron dynamics in strong laser fields and naturally incorporates complex-valued classical trajectories in the time-propagation. While the appearance of complex time is associated with optical tunnelling, complex coordinates reflect non-adiabaticity of the electron response to the strong laser field. We focus on non-adiabatic electron-core interaction in the sub-barrier region and show how it affects ionisation from orbitals with high angular momentum ℓ= 2, 3 in multiply charged atomic ions with strong electron-core interaction. In this paper we discuss sub-cycle ionisation yields, while in the companion papers we focus on the effects of the long-range core potential on the'initial conditions'(from the ARM perspective, companion paper II) for the photo electron as it emerges from the classically forbidden region and on the spin polarisation of the ejected electron (companion paper III).
用于单光子和强场状态下电离时间的自旋轨道拉莫尔时钟
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
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通讯作者: O. Smirnova
强圆偏振激光场电离后的空穴动力学和自旋电流
DOI: 10.1088/0953-4075/47/20/204020
发表时间: 2014
期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子: --
作者:
Ingo Barth ;Olga Smirnova
通讯作者: Olga Smirnova
DOI: 10.1088/1361-6455/aad133
发表时间: 2018
期刊: Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子: --
作者:
J. Kaushal;O. Smirnova
通讯作者: O. Smirnova
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发表时间: 2016-08-01
期刊: NATURE PHOTONICS
影响因子: 35
作者:
Hartung, Alexander;Morales, Felipe;Doerner, Reinhard
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DOI: 10.1088/1367-2630/13/9/093008
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