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Obtaining a detailed understanding of strong-field double ionisation of many-electron systems (heavy atoms and molecules) remains a challenging task. By comparing experimental and theoretical results in the mid-IR regime, we have…

A nonlinear dispersion of a general stationary wave in collisionless plasma is obtained in a non-differential form from a single-particle oscillation-center Hamiltonian. For electrostatic oscillations in nonmagnetized plasma, considered as…

等离子体物理 · 物理学 2015-05-28 I. Y. Dodin , N. J. Fisch

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

Exchange correlation plays an important role in double-ionization of complex atoms by ultrashort laser pulse. In this work, we investigate two-photon double inner-shell electron ionization of neon induced by an attosecond extreme…

原子物理 · 物理学 2019-06-05 Jianpeng Liu , Yongqiang Li , Jianmin Yuan

Twisted electron-impact single ionization ((e,2e) process) of water molecule is theoretically studied in the presence of an external laser field. Calculations have been performed in the framework of the first Born approximation in coplanar…

原子与分子团簇 · 物理学 2025-05-27 Neha , Rakesh Choubisa

We investigate the carrier-envelope phase and intensity dependence of the longitudinal momentum distribution of photoelectrons resulting from above-threshold ionization of argon by few-cycle laser pulses. The intensity of the pulses with a…

原子物理 · 物理学 2018-07-04 M. Kübel , M. Arbeiter , C. Burger , Nora G. Kling , T. Pischke , R. Moshammer , T. Fennel , M. F. Kling , B. Bergues

The reflection and transmission of a few-cycle Ti:Sa laser pulse iminging on a thin plasma layer have been analysed on the basis of classical electrodynamics. An approximate analytic solution has been given for the coupled Maxwell-Lorentz…

等离子体物理 · 物理学 2011-11-09 Sandor Varro

We studied dependence of dissociative ionization in H2 on carrier-envelope phase (CEP) of few-cycle (6fs) near-infrared (NIR) laser pulses. For low-energy channels, we present the first experimental observation of CEP dependence for total…

化学物理 · 物理学 2015-06-12 Han Xu , J - P Maclean , D E Laban , W C Wallace , D Kielpinski , R T Sang , I V Litvinyuk

We study the relaxation dynamics of laser-excited non-equilibrium electron distributions in the valence- and conduction band of a dielectric. We apply Boltzmann collision integrals to trace the influence of different scattering mechanisms…

统计力学 · 物理学 2023-04-28 Nils Brouwer , Steffen Hirtle , Baerbel Rethfeld

We consider the classical dynamics of a two-electron system subjected to an intense bichromatic linearly polarized laser pulse. By varying the parameters of the field, such as the phase lag and the relative amplitude between the two colors…

混沌动力学 · 物理学 2011-04-04 Adam Kamor , Francois Mauger , Cristel Chandre , Turgay Uzer

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 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

The polarization properties of the elastic electron scattering on H-like ions are investigated within the framework of the relativistic QED theory. The polarization properties are determined by a combination of relativistic effects and spin…

原子物理 · 物理学 2021-11-24 D. M. Vasileva , K. N. Lyashchenko , A. B. Voitkiv , D. Yu , O. Yu. Andreev

Electron spin dephasing in a singly charged semiconductor quantum dot can partially be suppressed by periodic laser pulsing. We propose a semi-classical approach describing the decoherence of the electron spin polarization governed by the…

介观与纳米尺度物理 · 物理学 2017-11-15 Natalie Jäschke , Andreas Fischer , E. Evers , V. V. Belykh , Alex Greilich , Manfred Bayer , Frithjof B. Anders

We explore the laser-induced ionization dynamics of N2 and CO2 molecules subjected to a few-cycle, linearly polarized, 800\,nm laser pulse using effective two-dimensional single active electron time-dependent quantum simulations. We show…

原子物理 · 物理学 2012-10-02 Michel Peters , Tung Nguyen-Dang , Eric Charron , Arne Keller , Osman Atabek

Non-linear Breit-Wheeler $e^+e^-$ pair production and its crossing channel - the non-linear Compton process - in the multi-photon regime are analyzed for linearly and circularly polarized short laser pulses. The contribution of multi-photon…

等离子体物理 · 物理学 2020-03-18 A. I. Titov , A. Otto , B. Kampfer

We demonstrate sub-cycle control of frustrated double ionization (FDI) in the two-electron triatomic molecule D$_3^+$ when driven by two orthogonally polarized two-color laser fields. We employ a three-dimensional semi-classical model that…

原子物理 · 物理学 2018-05-22 A. Vilà , G. P. Katsoulis , A. Emmanouilidou

We study ab initio computations of the interaction of Lithium with a strong laser field. Numerical solutions of the time-dependent fully-correlated three-particle Schroedinger equation restricted to the one-dimensional soft-core…

原子物理 · 物理学 2009-11-10 Camilo Ruiz , Luis Plaja , Luis Roso

Multielectron double ionization with elliptically polarized light is examined theoretically using a classical ensemble method going beyond the single-active-electron approximation. A knee structure in the ion signal is found. Our analysis…

原子物理 · 物理学 2015-03-18 Xu Wang , J. H. Eberly

Single ionization of H$_2$ molecules exposed to strong and short laser pulses is investigated by a semi-classical method. Three laser characteristics are considered: i) The carrier-wave frequency corresponds to wavelengths covering and…

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