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          Institute: MPI für Kernphysik     Collection: Physics with Ultrashort Laser Pulses     Display Documents

ID: 522440.0, MPI für Kernphysik / Physics with Ultrashort Laser Pulses
Ultrafast Extreme Ultraviolet Induced Isomerization of Acetylene Cations
Authors:Jiang, Y. H.; Rudenko, A.; Herrwerth, O.; Foucar, L.; Kurka, M.; Kühnel, K. U.; Lezius, M.; Kling, M. F.; van Tilborg, J.; Belkacem, A.; Ueda, K.; Düsterer, S.; Treusch, R.; Schröter, C. D.; Moshammer, R.; Ullrich, J.
Date of Publication (YYYY-MM-DD):2010-12-22
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Issue / Number:26
Start Page:1
End Page:4
Sequence Number of Article:263002
Copyright:© 2010 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Ultrafast isomerization of acetylene cations ([HC=CH]+) in the low-lying excited A2Σg+ state, populated by the absorption of extreme ultraviolet (XUV) photons (38 eV), has been observed at the Free Electron Laser in Hamburg, (FLASH). Recording coincident fragments C++CH2+ as a function of time between XUV-pump and -probe pulses, generated by a split-mirror device, we find an isomerization time of 52±15  fs in a kinetic energy release (KER) window of 5.8<KER<8  eV, providing clear evidence for the existence of a fast, nonradiative decay channel.
Classification / Thesaurus:31.70.Hq, 33.80.Gj, 41.60.Cr, 82.30.Qt
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group of J. Ullrich/Strong-Fields Physics (R. Moshammer)
MPI für Quantenoptik
External Affiliations:Max-Planck Advanced Study Group at CFEL, 22607 Hamburg, Germany
Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
DESY, 22607 Hamburg, Germany
Identifiers:URL:http://link.aps.org/doi/10.1103/PhysRevLett.105.26... [ID No:1]
DOI:10.1103/PhysRevLett.105.263002 [ID No:2]
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