TY  - JOUR
AU  - Gerken, N.
AU  - Klumpp, S.
AU  - Sorokin, A. A.
AU  - Tiedtke, K.
AU  - Richter, M.
AU  - Bürk, V.
AU  - Mertens, K.
AU  - Juranić, P.
AU  - Martins, M.
TI  - Time-Dependent Multiphoton Ionization of Xenon in the Soft-X-Ray Regime
JO  - Physical review letters
VL  - 112
IS  - 21
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - DESY-2014-03781
SP  - 213002
PY  - 2014
N1  - OA
AB  - The time-dependent multiphoton ionization of xenon atoms is studied with femtosecond pulses in the excitation range of the 4d giant resonance at the photon energy of 93 eV. Benefiting from a new operation mode of the free electron laser FLASH, the measurements are performed with varying pulse durations. A strong dependence of the ion charge distribution on the pulse duration allows the different multiphoton mechanisms behind the multiple photoionization of xenon to be disentangled up to a charge state of Xe10+. The results up to Xe8+ are well explained by sequences of single photon, multiphoton, and Auger processes, but higher charge state generation suggests the need for collective electron multiphoton excitations.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000338034400004
DO  - DOI:10.1103/PhysRevLett.112.213002
UR  - https://bib-pubdb1.desy.de/record/172530
ER  -