Multielectron ionization of three-electron strongly driven Ne at high intensities

Fuente: arXiv
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Autori principali: Praill, Samuel James, Katsoulis, Georgios Petros, Emmanouilidou, Agapi
Natura: Preprint
Pubblicazione: 2025
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author Praill, Samuel James
Katsoulis, Georgios Petros
Emmanouilidou, Agapi
author_facet Praill, Samuel James
Katsoulis, Georgios Petros
Emmanouilidou, Agapi
contents 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 with the core, as well as for the interaction of a recolliding electron with a bound electron. The model avoids artificial autoionization by employing effective Coulomb potentials to describe the interaction between bound electrons. Using the extended effective-Coulomb-potential for bound-bound electrons (ECBB) model, we compute triple and double ionization spectra. For instance, we compute the distributions of the sum of the final momenta along the laser field of the escaping electrons. Taking focal volume averaging into account, we find very good agreement with experimental results, particularly for triple ionization. Also, we identify the main pathways of triple and double ionization and explain how these pathways give rise to the main features of the triple and double ionization spectra.
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institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Multielectron ionization of three-electron strongly driven Ne at high intensities
Praill, Samuel James
Katsoulis, Georgios Petros
Emmanouilidou, Agapi
Atomic Physics
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 with the core, as well as for the interaction of a recolliding electron with a bound electron. The model avoids artificial autoionization by employing effective Coulomb potentials to describe the interaction between bound electrons. Using the extended effective-Coulomb-potential for bound-bound electrons (ECBB) model, we compute triple and double ionization spectra. For instance, we compute the distributions of the sum of the final momenta along the laser field of the escaping electrons. Taking focal volume averaging into account, we find very good agreement with experimental results, particularly for triple ionization. Also, we identify the main pathways of triple and double ionization and explain how these pathways give rise to the main features of the triple and double ionization spectra.
title Multielectron ionization of three-electron strongly driven Ne at high intensities
topic Atomic Physics
url https://arxiv.org/abs/2509.20155