Journal Article

PUBDB-2024-05041

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Xenon photoionization in the vicinity of 4d giant resonance and Cooper minimumusing an XUV-NIR pump-probe experiment

Kumar, S.DESY* ; Duesterer, S.XFEL.EU*DESY* ; Alisauskas, S.DESY* ; Braune, M.XFEL.EU*DESY* ; Cirmi, G.CFEL*DESY* ; Czwalinna, M. K.DESY* ; Fruehling, U.DESY* ; Große-Wortmann, U.DESY* ; Kschuev, N.DESY* ; Kuschewski, F.Extern* ; Lang, T.DESY* ; Lindenblatt, H.Extern* ; Manschwetus, B.Extern* ; Meister, S.Extern* ; Papadopoulou, C.DESY* ; Passow, C.XFEL.EU*DESY* ; Rönsch-Schulenburg, J.DESY* ; Schirmel, N.Extern* ; Schulz, S.XFEL.EU*DESY* ; Trost, F.Extern*XFEL.EU* ; Xu, H.XFEL.EU* ; Litvinyuk, I.Extern* ; Moshammer, R.Extern* ; Kabachnik, N.Extern*XFEL.EU* ; Erk, B.XFEL.EU*DESY* ; Tul Noor, A. (Corresponding author)DESY*

2024
APS Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevA.110.063104  doi:10.3204/PUBDB-2024-05041

Abstract: The relaxation processes in atomic xenon following core ionization of the 4d and 4p subshells wereinvestigated using ion time-of-flight spectroscopy. We compared the ionization processes at 90 eV, near the giant resonance, with those at 160 eV, near the Cooper minimum, where cross-sections for 4d and 4p were nearly identical. Final states with charges higher than 4, showed signatures of sequential two-photon absorption followed by subsequent Auger-Meitner decay. The averaged lifetimes of excited states were measured in a two-color extreme ultraviolet-pump near infrared-probe experiment. A transient enhancement in the ion yield of Xe5+ with a time constant of (49 ± 3) fs was obtained, attributed to 4d double core hole states and sequential Auger-Meitner decay.

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Contributing Institute(s):

1. FLASH Wissenschaftlicher Nutzerbetrieb (FS-FLASH-O)
2. Laser Forschung und Entwicklung (FS-LA)
3. FLASH Photonen-Diagnose und Steuerungen (FS-FLASH-D)
4. FS-FLASH (FS-FLASH)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)

Experiment(s):

1. FLASH2 Beamline FL26 (FLASH2)

Appears in the scientific report 2024

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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