TY - JOUR
T1 - Multielectron-Ion Coincidence Spectroscopy of Xe in Extreme Ultraviolet Laser Fields
T2 - Nonlinear Multiple Ionization via Double Core-Hole States
AU - Fushitani, M.
AU - Sasaki, Y.
AU - Matsuda, A.
AU - Fujise, H.
AU - Kawabe, Y.
AU - Hashigaya, K.
AU - Owada, S.
AU - Togashi, T.
AU - Nakajima, K.
AU - Yabashi, M.
AU - Hikosaka, Y.
AU - Hishikawa, A.
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/5/15
Y1 - 2020/5/15
N2 - Ultrafast multiphoton ionization of Xe in strong extreme ultraviolet free-electron laser (FEL) fields (91 eV, 30 fs, 1.6×1012 W/cm2) has been investigated by multielectron-ion coincidence spectroscopy. The electron spectra recorded in coincidence with Xe4+ show characteristic features associated with two-photon absorption to the 4d-2 double core-hole (DCH) states and subsequent Auger decay. It is found that the pathway via the DCH states, which has eluded clear identification in previous studies, makes a large contribution to the multiple ionization, despite the long FEL pulse duration compared with the lifetime of the 4d core-hole states.
AB - Ultrafast multiphoton ionization of Xe in strong extreme ultraviolet free-electron laser (FEL) fields (91 eV, 30 fs, 1.6×1012 W/cm2) has been investigated by multielectron-ion coincidence spectroscopy. The electron spectra recorded in coincidence with Xe4+ show characteristic features associated with two-photon absorption to the 4d-2 double core-hole (DCH) states and subsequent Auger decay. It is found that the pathway via the DCH states, which has eluded clear identification in previous studies, makes a large contribution to the multiple ionization, despite the long FEL pulse duration compared with the lifetime of the 4d core-hole states.
UR - http://www.scopus.com/inward/record.url?scp=85085657317&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.193201
DO - 10.1103/PhysRevLett.124.193201
M3 - 学術論文
C2 - 32469563
AN - SCOPUS:85085657317
SN - 0031-9007
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
M1 - 193201
ER -