Double-electron ionization driven by inhomogeneous fields

0478218 - FZÚ 2018 RIV DE eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606
GRANT EU: European Commission(XE) 654148 - LASERLAB-EUROPE
Grant ostatní: ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institucionální podpora: RVO:68378271
Klíčová slova: nonsequential double-ionization * harmonic-generation * laser fields * helium * model * emission * single * atom * ion * He
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.881, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0274373