Hashim, S;
Habibovic, D;
Figueira de Morisson Faria, C;
(2025)
Below-threshold nonsequential double ionization with linearly polarized two-color fields. I. Symmetry and dominance.
Physical Review A
, 112
(2)
, Article 023118. 10.1103/b6b3-mt29.
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Abstract
We investigate laser-induced nonsequential double ionization with linearly polarized bichromatic fields, focusing on the recollision-excitation with subsequent ionization (RESI) mechanism. Using the strong-field approximation, we assess how the symmetries of the field influence the dominant events. Furthermore, we show that, by manipulating the field parameters such as the field frequencies and relative phase between the two driving waves, one can influence the correlated electron-momentum distributions. Specific features of a linearly polarized bichromatic field are that the momentum distributions of the second electron are no longer centered around vanishing momenta and that there may be more than one ionization event per half-cycle. This can be used to confine the RESI distributions to specific momentum regions and to determine a hierarchy of parameters that make an event dominant.
| Type: | Article |
|---|---|
| Title: | Below-threshold nonsequential double ionization with linearly polarized two-color fields. I. Symmetry and dominance |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/b6b3-mt29 |
| Publisher version: | https://doi.org/10.1103/b6b3-mt29 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10218850 |
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