Ion-ion coincidence studies on multiple ionizations of N(2) and O(2) molecules irradiated by extreme ultraviolet free-electron laser pulses.
We have investigated multiple ionization of N(2) and O(2) molecules by 52 nm extreme-ultraviolet light pulses at the free-electron laser facility SCSS in Japan. Coulomb break-up of parent ions with charge states up to 5+ is found by the ion-ion coincidence technique. The charge-state dependence of kinetic energy release distributions suggests that the electrons are emitted sequentially in competition with the elongation of the bond length.
Yamada
A
A
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.
Fukuzawa
H
H
Motomura
K
K
Liu
X-J
XJ
Foucar
L
L
Kurka
M
M
Okunishi
M
M
Ueda
K
K
Saito
N
N
Iwayama
H
H
Nagaya
K
K
Sugishima
A
A
Murakami
H
H
Yao
M
M
Rudenko
A
A
Kühnel
K U
KU
Ullrich
J
J
Feifel
R
R
Czasch
A
A
Dörner
R
R
Nagasono
M
M
Higashiya
A
A
Yabashi
M
M
Ishikawa
T
T
Ohashi
H
H
Kimura
H
H
Togashi
T
T