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相关论文: A general model and toolkit for the ionization of …

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We formulate a three-dimensional semi-classical model to address triple and double ionization in three-electron atoms driven by intense infrared laser pulses. During time propagation, our model fully accounts for the Coulomb singularities,…

原子物理 · 物理学 2022-04-20 M. B. Peters , G. P. Katsoulis , A. Emmanouilidou

We demonstrate a general three-dimensional semiclassical model as a powerful technique for the study of correlated multi-electron escape in atoms driven by infrared laser pulses at intensities where electron-electron correlation prevails.…

原子物理 · 物理学 2023-04-26 Agapi Emmanouilidou , Matthew Benjamin Peters , Georgios Petros Katsoulis

We extend a recently developed three-dimensional semiclassical model to study double and triple ionization of Ne driven by infrared laser pulses at various intensities. This model fully accounts for the Coulomb singularity of each electron…

原子物理 · 物理学 2025-12-18 Samuel James Praill , Georgios Petros Katsoulis , Agapi Emmanouilidou

We formulate a three-dimensional semi-classical model to treat three-electron escape dynamics in a strongly-driven linear triatomic molecule, HeH$_{2}^{+}$. Our model includes the Coulomb singularities. Hence, to avoid unphysical…

原子物理 · 物理学 2021-04-21 M. B. Peters , V. P. Majety , A. Emmanouilidou

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

Using a semi-classical model, we study the formation of highly excited neutral fragments during the fragmentation of $\mathrm{H_3^+}$, a two-electron triatomic molecule, driven by an intense near-IR laser field. To do so, we first formulate…

原子物理 · 物理学 2016-11-23 A. Chen , C. Lazarou , H. Price , A. Emmanouilidou

We study the formation of highly excited neutral atoms during the break-up of strongly-driven molecules. Past work on this significant phenomenon has shown that during the formation of highly excited neutral atoms ($\mathrm{H^{*}}$) during…

原子物理 · 物理学 2015-06-19 H. Price , C. Lazarou , A. Emmanouilidou

With a semiclassical quasi-static model we achieve an insight into the complex dynamics of two correlated electrons under the combined influence of a two-center Coulomb potential and an intense laser field. The model calculation is able to…

原子与分子团簇 · 物理学 2009-11-13 J. Liu , D. F. Ye , J. Chen , X. liu

Using a three-dimensional quasiclassical technique we explore molecular double ionization by a linearly polarized, infrared (800 nm) and ultrashort (6 fs) laser pulse. We first focus on intensities corresponding to the tunneling regime and…

原子物理 · 物理学 2015-05-14 A. Emmanouilidou , A. Staudte

We investigate correlated three-electron escape in Ne when driven by an intense, infrared laser field. We do so by employing a reduced-dimensionality quantum-mechanical model and two three-dimensional semi-classical models. One…

In strong laser-atom interactions, the Coulomb potential can affect the trajectories of rescattering electron in high-order harmonic generation (HHG). Here, by constructing a semi-analytical Coulomb-included model and comparing it with…

原子物理 · 物理学 2025-12-16 Yigen Peng , Jiayin Che , Ruihua Xu , Shang Wang , Xuejiao Xie , Yanjun Chen

We consider the final stage of triple ionization of atoms in a strong linearly polarized laser field. We propose that for intensities below the saturation value for triple ionization the process is dominated by the simultaneous escape of…

量子物理 · 物理学 2009-11-07 Krzysztof Sacha , Bruno Eckhardt

We employ a recently developed three-dimensional semiclassical model to identify nondipole effects in triple ionization of Ne driven by infrared laser pulses at intensities where electron-electron correlation prevails. This model fully…

原子物理 · 物理学 2023-02-28 Georgios Petros Katsoulis , Matthew Benjamin Peters , Agapi Emmanouilidou

Multiple ionisation and electron capture are found to be vital mechanisms for K and L x-ray emissions along with the direct coulomb ionisation in heavy ion-atom collisions. Naturally, these two mechanisms may also be significant for M x-ray…

原子物理 · 物理学 2024-07-04 Soumya Chatterjee , Sumana Ghosh , D. Mitra

We consider the dynamics of electrons in combined strong laser and Coulomb fields. Under a timescale separation condition, we reduce this dynamics to a guiding-center framework. More precisely, we derive a hierarchy of models for the…

混沌动力学 · 物理学 2018-11-28 Jonathan Dubois , S. Berman , C. Chandre , T. Uzer

The ionization of atomic hydrogen in intense laser fields is studied theoretically. The calculations were performed applying both quantummechanical and classical approaches. Treating the problem quantummechanically, the time dependent…

原子物理 · 物理学 2009-11-13 S. Borbély , K. Tőkési , L. Nagy

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

Formulating a quasiclassical approach we determine the cross section for the complete four-body break-up of the lithium ground state following single photon absorption from threshold up to 220 eV excess energy. In addition, we develop a new…

原子物理 · 物理学 2009-11-11 Agapi Emmanouilidou , Jan M. Rost

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
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