Momentum distributions of ne(n+) ions created by an intense ultrashort laser pulse
Vector momentum distributions of Ne(n+) (n = 1,2,3) ions created by 30 fs, approximately 1 PW/cm(2) laser pulses at 795 nm have been measured using recoil-ion momentum spectroscopy. Distinct maxima along the light polarization axis are observed at 4.0 and 7.5 a.u. for Ne2+ and Ne3+ production, respectively. Hence, mechanisms based on an instantaneous release of two (or more) electrons can be ruled out as a dominant contribution to nonsequential strong-field multiple ionization. The positions of the maxima are in accord with kinematical constraints set by the classical "rescattering model."
Moshammer
R
Universitat Freiburg, Hermann-Herder Strasse 3, D-79104 Freiburg, Germany.
Feuerstein
B
Schmitt
W
Dorn
A
Schroter
CD
Ullrich
J
Rottke
H
Trump
C
Wittmann
M
Korn
G
Hoffmann
K
Sandner
W