76 citations · 267 across the 13 of their papers we have counts for
5 papers · 1 filter
A Schrödinger equation for relativistic laser-matter interactions
Tor Kjellsson Lindblom, Morten Førre, Eva Lindroth +1
A semi-relativistic formulation of light-matter interaction is derived using the so called propagation gauge and the relativistic mass shift. We show that relativistic effects indu…
Envelope induced ionization dynamics beyond the dipole approximation
Aleksander Skjerlie Simonsen, Tor Kjellsson, Morten Førre +2
When atoms and molecules are ionized by laser pulses of finite duration and increasingly high intensities, the validity of the much used dipole approximation, in which the spatial…
Multiphoton ionization and stabilization of helium in superintense xuv fields
S. A. Sørngård, S. Askeland, R. Nepstad +1
Multiphoton ionization of helium is investigated in the superintense field regime, with particular emphasis on the role of the electron-electron interaction in the ionization and s…
The role of final state correlation in double ionization of helium: a master equation approach
Sølve Selstø, Tore Birkeland, Simen Kvaal +2
The process of nonsequential two-photon double ionization of helium is studied by two complementary numerical approaches. First, the time-dependent Schr{ö}dinger equation is solved…
Nonsequential Two-Photon Double Ionization of Atoms: Identifying the Mechanism
Morten Førre, Sølve Selstø, Raymond Nepstad
We develop an approximate model for the process of direct (nonsequential) two-photon double ionization of atoms. Employing the model, we calculate (generalized) total cross section…