Open AccessTime-Resolved Measurement of Interatomic Coulombic Decay Induced by Two-Photon Double Excitation of Ne 2
Author(s) -
Tsukasa Takanashi,
Nikolay V. Golubev,
Carlo Callegari,
H. Fukuzawa,
K. Motomura,
Denys Iablonskyi,
Yoshiaki Kumagai,
Subhendu Mondal,
Takehiko Tachibana,
K. Nagaya,
Toshiyuki Nishiyama,
K. Matsunami,
Per Johnsson,
P. Piseri,
G. Sansone,
A. Dubrouil,
Maurizio Reduzzi,
Paolo Carpeggiani,
Caterina Vozzi,
M. Devetta,
Matteo Negro,
Davide Faccialà,
Francesca Calegari,
Andrea Trabattoni,
Mattea Carmen Castrovilli,
Yevheniy Ovcharenko,
M. Mudrich,
F. Stienkemeier,
Marcello Coreno,
Michele Alagia,
Bernd Schütte,
N. Berrah,
Oksana Plekan,
P. Finetti,
C. Spezzani,
Eugenio Ferrari,
E. Allaria,
G. Penco,
C. Serpico,
G. De Ninno,
B. Diviacco,
S. Di Mitri,
L. Giannessi,
Ghazal Jabbari,
Kevin C. Prince,
Lorenz S. Cederbaum,
Ph. V. Demekhin,
Alexander I. Kuleff,
Kiyoshi Ueda
Publication year - 2017
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.118.033202
Subject(s) - excited state , physics , atomic physics , ionization , ion , excitation , ab initio , extreme ultraviolet , laser , optics , quantum mechanics
The hitherto unexplored two-photon doubly excited states [Ne∗(2p-13s)]2 were experimentally identified using the seeded, fully coherent, intense extreme ultraviolet free-electron laser FERMI. These states undergo ultrafast interatomic Coulombic decay (ICD), which predominantly produces singly ionized dimers. In order to obtain the rate of ICD, the resulting yield of Ne2+ ions was recorded as a function of delay between the extreme ultraviolet pump and UV probe laser pulses. The extracted lifetimes of the long-lived doubly excited states, 390(-130/+450) fs, and of the short-lived ones, less than 150 fs, are in good agreement with ab initio quantum mechanical calculations