Katsoulis, GP;
Emmanouilidou, A;
(2019)
Fingerprints of slingshot non-sequential double ionization on two-electron probability distributions.
Scientific Reports
, 9
, Article 18855. 10.1038/s41598-019-55066-1.
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Abstract
We study double ionization of He driven by near-single-cycle laser pulses at low intensities at 400 nm. Using a three-dimensional semiclassical model, we identify the pathways that prevail non-sequential double ionization (NSDI). We focus mostly on the delayed pathway, where one electron ionizes with a time-delay after recollision. We have recently shown that the mechanism that prevails the delayed pathway depends on intensity. For low intensities slingshot-NSDI is the dominant mechanism. Here, we identify the differences in two-electron probability distributions of the prevailing NSDI pathways. This allows us to identify properties of the two-electron escape and thus gain significant insight into slingshot-NSDI. Interestingly, we find that an observable fingerpint of slingshot-NSDI is the two electrons escaping with large and roughly equal energies.
| Type: | Article |
|---|---|
| Title: | Fingerprints of slingshot non-sequential double ionization on two-electron probability distributions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41598-019-55066-1 |
| Publisher version: | https://doi.org/10.1038/s41598-019-55066-1 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Multidisciplinary Sciences, Science & Technology - Other Topics, MULTIPLE IONIZATION, ATOMS, FIELD, MECHANISMS, SPECTRA |
| 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/10088884 |
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