Chen, A;
Price, H;
Staudte, A;
Emmanouilidou, A;
(2016)
Frustrated double ionization in two-electron triatomic molecules.
Physical Review A
, 94
(4)
, Article 043408. 10.1103/PhysRevA.94.043408.
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Abstract
Using a semiclassical model, we investigate frustrated double ionization (FDI) in D3 +, a two-electron triatomic molecule, when driven by an intense, linearly polarized, near-infrared (800 nm) laser field. We compute the kinetic energy release of the nuclei and find a good agreement between experiment and our model. We explore the two pathways of FDI and show that, with increasing field strength, over-the-barrier ionization overtakes tunnel ionization as the underlying mechanism of FDI. Moreover, we compute the angular distribution of the ion fragments for FDI and identify a feature that can potentially be observed experimentally and is a signature of only one of the two pathways of FDI.
| Type: | Article |
|---|---|
| Title: | Frustrated double ionization in two-electron triatomic molecules |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevA.94.043408 |
| Publisher version: | http://doi.org/10.1103/PhysRevA.94.043408 |
| Language: | English |
| Additional information: | © 2016 American Physical Society. |
| Keywords: | Science & Technology, Physical Sciences, Optics, Physics, Atomic, Molecular & Chemical, Physics, ENHANCED IONIZATION, LASER FIELDS, MODEL, H-3+ |
| 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-pp.ucl.ac.uk/id/eprint/1487055 |
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