Double-electron ionization driven by inhomogeneous fields

0478218 - FZÚ 2018 RIV DE eng J - Journal Article
Chacon, A. - Ortmann, L. - Cucchietti, F. - Suarez, N. - Perez-Hernandez, J. A. - Ciappina, Marcelo F. - Landsman, A.S. - Lewenstein, M.
Double-electron ionization driven by inhomogeneous fields.
Applied Physics B-Lasers and Optics. Roč. 123, č. 4 (2017), 1-11, č. článku 116. ISSN 0946-2171. E-ISSN 1432-0649
R&D Projects: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606
EU Projects: European Commission(XE) 654148 - LASERLAB-EUROPE
Grant - others:ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institutional support: RVO:68378271
Keywords : nonsequential double-ionization * harmonic-generation * laser fields * helium * model * emission * single * atom * ion * He
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 1.881, year: 2017

Electron-electron correlation effects play a crucial role in our understanding of sequential (SDI) and non-sequential double ionization (NSDI) mechanisms. Here, we present a theoretical study of NSDI driven by plasmonic-enhanced spatial inhomogeneous fields. By numerically solving the time-dependent Schrdinger equation for a linear reduced model of He and a double-electron time-evolution probability analysis, we provide evidence for enhancement effects in NSDI showing that the double ionization yield at lower laser peak intensities is increased due to the spatial inhomogeneous character of plasmonicenhanced field. The change in the emission direction of the double-ion as a function of the field inhomogeneity degree demonstrates that plasmonic-enhanced fields could configure a reliable instrument to control the ion emission.
Permanent Link: http://hdl.handle.net/11104/0274373