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相关论文: Multielectron effect in the strong-field ionizatio…

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We discuss the mechanism by which the inclusion of multielectron polarization improves the solution of the time-dependent Schr\"{o}dinger equation (TDSE) for the oriented CO molecule in a strong external laser pulse within the…

原子物理 · 物理学 2020-02-05 Mahmoud Abu-samha , Lars B Madsen

We investigate the effects of the multielectron polarization of the ion described by the induced dipole potential in photoelectron momentum distributions produced in ionization of the CO molecule by a strong laser field. We present results…

原子物理 · 物理学 2024-04-23 Mahmoud Abu-samha , L. B. Madsen , N. I. Shvetsov-Shilovski

We present theoretical calculations of orientation-dependent total ionization yields from the highest occupied molecular orbitals of the oriented OCS molecule by solving the time-dependent Schr\"odinger equation in three dimensions. The…

原子物理 · 物理学 2021-01-04 Mahmoud Abu-samha , Lars Bojer Madsen

We extend the semiclassical two-step model [Phys. Rev. A 94, 013415 (2016)] to include a multielectron polarization-induced dipole potential. Using this model we investigate the imprints of multielectron effects in the momentum…

原子物理 · 物理学 2018-08-22 N. I. Shvetsov-Shilovski , M. Lein , L. B. Madsen

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

Strong-field ionization of atoms by circularly polarized femtosecond laser pulses produces a donut-shaped electron momentum distribution. Within the dipole approximation this distribution is symmetric with respect to the polarization plane.…

We consider atomic strong-field ionization in the long-pulse limit for linearly polarized infrared laser fields. We show how nondipole effects in the plane formed by the propagation and polarization directions lead to (i) a shift of the…

原子物理 · 物理学 2021-11-10 Mads Middelhede Lund , Lars Bojer Madsen

We study tunneling ionization of HeH+ in strong elliptical laser fields numerically and analytically. The calculated photoelectron momentum distribution (PMD) show two different offset angles corresponding to ionization events occurring in…

原子物理 · 物理学 2025-11-18 Jiayin Che , Sheng Ye , Shiqi Shen , Weiyan Li , Yanjun Chen

Strong-field ionization of polar molecules contains rich dynamical processes such as tunneling, excitation, and Stark shift. These processes occur on a sub-cycle time scale and are difficult to distinguish in ultrafast measurements. Here,…

原子物理 · 物理学 2021-12-15 Jia-Yin Che , Chao Chen , Shang Wang , Guo-Guo Xin , Yan-Jun Chen

We report fully differential photoelectron spectra from an {\it ab-inito} coupled channels treatment of CO$_2$. Photoionization by laser pulses centered at 400 nm and 800 nm wavelength are considered, with arbitrary molecular alignment and…

原子物理 · 物理学 2017-09-05 Vinay Pramod Majety , Armin Scrinzi

Strong field ionization of benzene, fluorobenzene, benzonitrile and 1-chloro-2-fluorobenzene, is studied within the framework of real-space and real-time time-dependent density functional theory. Analysis of the ionization rates as function…

化学物理 · 物理学 2018-11-20 Eldad Yahel , Amir Natan

Nondipole effects are ubiquitous and crucial in light-matter interaction. However, they are too weak to be directly observed. In strong-field physics, motion of electrons is mainly confined in transverse plane of light fields, which…

原子物理 · 物理学 2023-03-07 Yankun Dou , Yiqi Fang , Peipei Ge , Yunquan Liu

We study nondipole effects in multiphoton ionization of a two-dimensional hydrogen-like atom by a flat-top laser pulse of varied intensity. For this purpose, we solve numerically a two-dimensional Schr\"odinger equation treating a…

原子物理 · 物理学 2024-12-25 J. Z. Kamiński , K. Krajewska

The present work explores quantitative limits to the Single-Active Electron (SAE) approximation, often used to deal with strong-field ionization and subsequent attosecond dynamics. Using a time-dependent multi\-configuration approach,…

原子物理 · 物理学 2025-11-04 Jean-Nicolas Vigneau , Tung Nguyen-Dang , Eric Charron , Osman Atabek

Nondipole effects in the atomic dynamic interference are investigated by numerically solving the time-dependent Schr\"odinger equation~(TDSE) of hydrogen. It is found that the inclusion of nondipole corrections in the TDSE can induce…

原子物理 · 物理学 2018-12-26 Mu-Xue Wang , Hao Liang , Xiang-Ru Xiao , Si-Ge Chen , Wei-Chao Jiang , Liang-You Peng

We present combined experimental and theoretical results on strong-field ionization of oriented carbonyl-sulphide molecules by circularly-polarized laser pulses. The obtained molecular frame photoelectron angular distributions show…

The influence of inner electrons on the ionization dynamics in strong laser fields is investigated in a wavelength regime where the inner electron dynamics is usually assumed to be negligible. The role of inner electrons is of particular…

原子物理 · 物理学 2014-03-11 J. Rapp , D. Bauer

We investigate the strong-field ionization of atomic hydrogen in a few-cycle elliptically polarized infrared pulse by solving the time-dependent Schr\"odinger equation. The dependence of the photoelectron momentum distribution on the pulse…

原子物理 · 物理学 2022-11-30 Nicolas Douguet , Klaus Bartschat

The spin polarization of photoelectrons induced by an intense linearly polarized laser field is investigated using numerical solutions of the time-dependent Schr\"odinger equation in companion with our analytic treatment via the…

原子物理 · 物理学 2024-02-20 Pei-Lun He , Zhao-Han Zhang , Karen Z. Hatsagortsyan , Christoph H. Keitel

Tunneling ionization of an atom in ultrashort laser pulses is considered. When the driving laser pulse is switched-on and -off with a steep slope, the photoelectron momentum distribution (PMD) shows an edge-effect because of the…

原子物理 · 物理学 2022-07-07 M. Klaiber , Q. Z. Lv , K. Z. Hatsagortsyan , C. H. Keitel
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