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相关论文: Bound-state corrections in laser-induced nonsequen…

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We study ionization dynamics of aligned diatomic molecules N$_2$ in strong elliptical laser fields experimentally and theoretically. The alignment dependence of photoelectron momentum distributions (PMDs) of N$_2$ measured in experiments is…

The course of non-thermal electron ejection in relativistic unmagnetized electron-ion shocks is investigated by performing self-consistent particle-in-cell simulations. The shocks are excited through the injection of relativistic jet into…

高能天体物理现象 · 物理学 2016-08-24 Kazem Ardaneh , Dongsheng Cai , Ken-Ichi Nishikawa

We have investigated the energy correlation of the two electrons from nonsequential double ionization of helium atom in 800 nm laser fields at intensities below the recollision threshold by quantum calculations. The circular arcs structure…

光学 · 物理学 2011-10-07 Qing Liao , Peixiang Lu

We extend a recently developed three-dimensional semiclassical model [\href{https://journals.aps.org/pra/abstract/10.1103/PhysRevA.109.033106}{Phys. Rev. \textbf{A} 109, 033106 (2024)}] to study multielectron ionization and the formation of…

原子物理 · 物理学 2026-02-17 Georgios Petros Katsoulis , Agapi Emmanouilidou

We extend the semiclassical two-step model for strong-field ionization that describes quantum interference and accounts for the Coulomb potential beyond the semiclassical perturbation theory to the hydrogen molecule. In the simplest case of…

原子物理 · 物理学 2019-03-27 N. I. Shvetsov-Shilovski , M. Lein , K. Tőkési

Strong field ionization provides a unique mean to address complex dynamics of an electron in competing Coulomb and laser fields. Recent streak camera experiment (K\"ubel, et al., Phys. Rev. Lett. 119, 183201) analyzed asymmetries in the…

The outgoing electrons in non-sequential multiple ionization in intense laser fields are strongly correlated. The correlations can be explained within a classical model for interacting electrons in the presence of the external field. Here…

量子物理 · 物理学 2009-11-10 Krzysztof Sacha , Bruno Eckhardt

We examine the nature and statistical properties of electron-electron collisions in the recollision process in a strong laser field. The separation of the double ionization yield into sequential and nonsequential components leads to a…

原子物理 · 物理学 2015-05-14 Francois Mauger , Cristel Chandre , Turgay Uzer

Ionization by a sequence of extreme ultraviolet pulses is investigated based on the rigorous numerical solution of the time-dependent Schr\"odinger equation, when the driving laser field is treated exactly. This goes beyond the typically…

原子物理 · 物理学 2025-11-07 J. Z. Kamiński , K. Krajewska

Consensus has been reached that recollision, as the most important post-tunneling process, is responsible for nonsequential double ionization process in intense infrared laser field, however, its effect has been restricted to interaction…

原子物理 · 物理学 2021-06-14 Xiaolei Hao , Yuxing Bai , Chan Li , Jingyu Zhang , Weidong Li , Weifeng Yang , MingQing Liu , Jing Chen

In the present paper, we develop a semiclassical quasi-static model accounting for molecular double ionization in an intense laser pulse. With this model, we achieve insight into the dynamics of two highly-correlated valence electrons under…

原子与分子团簇 · 物理学 2009-11-13 Di-Fa Ye , Jing Chen , Jie Liu

We revisit the stabilization of ionization of atoms subjected to a superintense laser pulse using nonlinear dynamics. We provide an explanation for the lack of complete ionization at high intensity and for the decrease of the ionization…

混沌动力学 · 物理学 2015-06-23 Michael Norman , C. Chandre , T. Uzer , Peijie Wang

We present a novel approach to calculating strong field ionization dynamics of multielectron molecular targets. Adopting a multielectron wavefunction ansatz based on field-free ab initio neutral and ionic multielectron states, a set of…

原子物理 · 物理学 2015-05-14 Michael Spanner , Serguei Patchkovskii

Ionization of hydrogen-like ions by intense, circularly polarized laser pulses is analyzed under the scope of the relativistic strong-field approximation. We show that, for specific parameters of the laser field, the energy spectra of…

原子物理 · 物理学 2016-12-30 F. Cajiao Vélez , J. Z. Kamiński , K. Krajewska

We investigate the role of the Coulomb interaction in strong field processes. We find that the Coulomb field of the ion makes its presence known even in highly intense laser fields, in contrast to the assumptions of the strong field…

原子物理 · 物理学 2019-05-15 Jonathan Dubois , Simon Berman , Cristel Chandre , Turgay Uzer

A molecular rotation assisted non-sequential double ionization (MR-NSDI) mechanism is identified in the breakup of rotational H$_2$ molecules in a few-cycle intense laser pulse using a semi-classical trajectory Monte Carlo method. Applying…

原子物理 · 物理学 2022-05-31 Ahai Chen

We present the first theoretical treatment of the formation of highly excited neutral H atoms (H$^{*}$) for strongly driven H$_{2}$. This process, with one electron ionizing and one captured in a Rydberg state, was recently reported in an…

原子物理 · 物理学 2015-05-28 A. Emmanouilidou , D. Tchitchekova , C. Lazarou , U. Eichmann

We investigate laser-induced nonsequential double ionization by a polarization-gated laser pulse, constructed employing two counter-rotating circularly polarized few cycle pulses with a time delay $T_{d}$. We address the problem within a…

原子物理 · 物理学 2015-05-13 W. Quan , X. Liu , C. Figueira de Morisson Faria

This paper concerns the theory of non-recollisional ionization or detachment of atoms or ions by intense few-cycle pulses. It is shown that in certain conditions of pulse duration, peak intensity and carrier-envelope phase, the ionization…

原子物理 · 物理学 2014-09-04 C. C. Chirila , R. M. Potvliege

We investigate dissociative single and double ionization of HeH+ induced by intense femtosecond laser pulses. By employing a semi-classical model with nuclear trajectories moving on field-dressed surfaces and ionization events treated as…

原子物理 · 物理学 2018-10-24 Lun Yue , Philipp Wustelt , A. Max Sayler , Gerhard G. Paulus , Stefanie Gräfe