Rescattering of ultralow-energy electrons for single ionization of Ne in the tunneling regime.
Electron emission for single ionization of Ne by 25 fs, 1.0 PW/cm(2) laser pulses at 800 nm has been investigated in a kinematically complete experiment using a "reaction microscope." Mapping the complete final state momentum space with high resolution, a distinct local minimum is observed at P(e parallel )=0, where P(e parallel ) is the electron momentum parallel to the laser polarization. Whereas tunneling theory predicts a maximum at zero momentum, our findings are in good agreement with recent semiclassical predictions which were interpreted to be due to "recollision."
Moshammer
R
R
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-67119 Heidelberg, Germany. R.Moshammer@mpi-hd.mpg.de
Ullrich
J
J
Feuerstein
B
B
Fischer
D
D
Dorn
A
A
Schröter
C D
CD
Crespo Lopez-Urrutia
J R
JR
Hoehr
C
C
Rottke
H
H
Trump
C
C
Wittmann
M
M
Korn
G
G
Sandner
W
W