Ion-ion coincidence studies on multiple ionizations of N(2) and O(2) molecules irradiated by extreme ultraviolet free-electron laser pulses

A Yamada; H Fukuzawa; K Motomura; X-J Liu; L Foucar; M Kurka; M Okunishi; K Ueda; N Saito; H Iwayama; K Nagaya; A Sugishima; H Murakami; M Yao; A Rudenko; K U Kühnel; J Ullrich; R Feifel; A Czasch; R Dörner; M Nagasono; A Higashiya; M Yabashi; T Ishikawa; H Ohashi; H Kimura; T Togashi

doi:10.1063/1.3436722

Ion-ion coincidence studies on multiple ionizations of N(2) and O(2) molecules irradiated by extreme ultraviolet free-electron laser pulses

J Chem Phys. 2010 May 28;132(20):204305. doi: 10.1063/1.3436722.

Authors

Affiliation

¹ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.

PMID: 20515093
DOI: 10.1063/1.3436722

Abstract

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.