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相关论文: Subcycle resolved strong-field tunneling ionizatio…

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The intermediate domain of strong-field ionization between the tunneling and the multiphoton regimes is investigated using the strong field approximation and the imaginary-time method. An intuitive model for the dynamics is developed which…

量子物理 · 物理学 2015-06-22 M. Klaiber , K. Z. Hatsagortsyan , C. H. Keitel

We investigate the ionization dynamics of atoms irradiated by an intense laser field using a semiclassical model that includes magnetic Lorentz force in the rescattering process. We find that, the electrons tunneled with different initial…

原子物理 · 物理学 2017-01-25 J. F. Tao , Q. Z. Xia , J. Cai , L. B. Fu , J. Liu

We investigate the liberation of an atomic electron by a linearly polarized single-cycle near-infrared laser pulse having a peak intensity that ensures tunneling. Based on phase space analysis and energy distribution in the instantaneous…

Strong-field photoelectron momentum imaging of the prototypical biomolecule indole was disentangled in a combined experimental and computational approach. Experimentally, strong control over the molecules enabled the acquisition of…

原子物理 · 物理学 2021-02-03 Joss Wiese , Jolijn Onvlee , Sebastian Trippel , Jochen Küpper

We present a detailed experimental and theoretical study on the relativistic non-dipole effects in strong-field atomic ionisation by near-infrared linearly-polarised few-cycle laser pulses in the intensity range 1014 -1015 W/cm2. We record…

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

Tunneling of a particle through a potential barrier remains one of the most remarkable quantum phenomena. Owing to advances in laser technology, electric fields comparable to those electrons experience in atoms are readily generated and…

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

The magnetic-field effect of the laser pulse is investigated in laser-assisted XUV ionization. By numerically solving the three-dimensional time-dependent Schr\"odinger equation, we find that the photoelectron momentum distribution is…

原子物理 · 物理学 2022-10-31 Jintai Liang , Yueming Zhou , Wei-Chao Jiang , Min Li , Peixiang Lu

A new pathway of strong laser field induced ionization of an atom is identified which is based on recollisions under the tunneling barrier. With an amended strong field approximation, the interference of the direct and the under-the-barrier…

原子物理 · 物理学 2018-01-10 Michael Klaiber , Karen Z. Hatsagortsyan , Christoph H. Keitel

Using a three-dimensional semiclassical model, we study double ionization for strongly-driven He fully accounting for magnetic field effects. For linearly and slightly elliptically polarized laser fields, we show that recollisions and the…

原子物理 · 物理学 2017-11-22 A. Emmanouilidou , T. Meltzer , P. B. Corkum

Quantum calculations of tunneling in strong-field ionization (SFI) predict intricate momentum distributions due to sub-laser-cycle attosecond electron dynamics. These are obscured in most experiments by the dominance of inter-cycle…

原子物理 · 物理学 2021-06-03 Nicholas Werby , Adi Natan , Ruaridh Forbes , Philip Bucksbaum

We analyze the two-dimensional momentum distribution of electrons ionized by few-cycle laser pulses in the transition regime from multiphoton absorption to tunneling by solving the time-dependent Schr\"odinger equation and by a…

量子物理 · 物理学 2007-05-23 D. G. Arbó , S. Yoshida , E. Persson , K. I. Dimitriou , J. Burgdörfer

Multielectron tunneling ionization creates ionic coherence crucial for lasing and driving electron motion in molecules. While tunneling is well understood as a single active electron process, less emphasis has been placed on theoretical…

量子物理 · 物理学 2026-04-23 Chi-Hong Yuen

The photoelectron momentum distribution in the strong-field ionization has a variety of structures that reveal the complicated dynamics of this process. Recently, we identified a low-energy interference structure in the case of a…

原子物理 · 物理学 2022-04-27 Lei Geng , Hao Liang , Liang-You Peng

We consider correlation-assisted tunnel ionization of a small molecule by an intense low-frequency laser pulse. In this mechanism, the departing electron excites the state of the ion via a Coulomb interaction. We show that the angular…

原子物理 · 物理学 2014-04-25 Emilio Pisanty , Misha Ivanov

The double-slit interference in single-photon ionization of the diatomic molecular ion $\mathrm{H}_2^+$ is theoretically studied beyond the dipole approximation. Via simulating and comparing the interactions of the prealigned…

原子物理 · 物理学 2021-11-24 Kunlong Liu , Yibo Hu , Qingbin Zhang , Peixiang Lu

We study the interaction of a light beams carrying angular momentum with a single, trapped and well localized ion. We provide a detailed calculation of selection rules and excitation probabilities for quadrupole transitions. The results…

原子物理 · 物理学 2012-04-24 Christian Tomás Schmiegelow , Ferdinand Schmidt-Kaler

For two-electron diatomic molecules, we investigate magnetic field effects in non-sequential double ionization where recollisions prevail. We do so by formulating a three-dimensional semi-classical model that fully accounts for the Coulomb…

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