Work

Frustrated double ionization in two-electron triatomic molecules

Year: 2016

Type: article

Abstract: Using a semiclassical model, we investigate frustrated double ionization (FDI) in ${\mathrm{D}}_{3}{}^{+}$, 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.

Source: Physical Review A

DOI: 10.1103/physreva.94.043408

Authors: A. Chen, H. Price, A. Staudte, A. Emmanouilidou

Institutions: University College London, University of Ottawa, National Research Council Canada, Joint Attosecond Science Laboratory

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Engineering and Physical Sciences Research Council

Awards: G4992317537, G6701672165