Brennecke, S.; Lein, M.: High-order above-threshold ionization beyond the electric dipole approximation. In: Journal of Physics B: Atomic, Molecular and Optical Physics 51 (2018), Nr. 9, 94005. DOI:
https://doi.org/10.1088/1361-6455/aab91f
Abstract: |
Photoelectron momentum distributions from strong-field ionization are calculated by numerical solution of the one-electron time-dependent Schrödinger equation for a model atom including effects beyond the electric dipole approximation. We focus on the high-energy electrons from rescattering and analyze their momentum component along the field propagation direction. We show that the boundary of the calculated momentum distribution is deformed in accordance with the classical three-step model including the beyond-dipole Lorentz force. In addition, the momentum distribution exhibits an asymmetry in the signal strengths of electrons emitted in the forward/backward directions. Taken together, the two non-dipole effects give rise to a considerable average forward momentum component of the order of 0.1 a.u. for realistic laser parameters.
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License of this version: |
CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/
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Publication type: |
Article |
Publishing status: |
publishedVersion |
Publication date: |
2018 |
Keywords english: |
non-dipole effects, rescattering, strong-field ionization, time-dependent Schrodinger equation, Nonlinear equations, Photoionization, Schrodinger equation, Electric-dipole approximation, High-energy electron, High-order above-threshold ionization, Momentum distributions, Non-dipole effects, Rescattering, Strong field ionization, Time dependent Schrodinger equation, Momentum
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DDC: |
530 | Physik
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