https://doi.org/10.1140/epjd/s10053-025-00962-7
Regular Article – Ultraintense and Ultrashort Laser Fields
Plasma screening effects on the above-threshold ionization spectra of argon atom in an intense laser field
1
School of Physical Sciences, Jawaharlal Nehru University, 110067, Delhi, India
2
Department of Physics, Kirori Mal College, University of Delhi, 110007, Delhi, India
3
Department of Physics & Astrophysics, University of Delhi, 110007, Delhi, India
Received:
29
May
2024
Accepted:
20
January
2025
Published online:
12
February
2025
Plasma screening effects on the above-threshold ionization (ATI) of the argon atom in Gaussian windowed soft-core Coulomb (GSC) potential is investigated using the time-dependent Schrödinger equation (TDSE), by employing the Crank–Nicolson numerical method. The variation in the ground-state population and ionization probabilities with time is calculated in the Debye plasma environment. The effect of laser intensity variations on the ATI spectra of argon atom is calculated, and ATI spectra show a similar pattern of redshift, as discussed in the available literature. Plasma screening effects on the population of ground state, ionization probabilities, and ATI spectra of argon atom are studied in GSC potential for the first time, at different laser intensities and Debye lengths.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
