Ultrafast Extreme Ultraviolet Induced Isomerization of Acetylene Cations

Journal Article · Fri Dec 31 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.263002· OSTI ID:21554500

Jiang, Y H; Kurka, M; Kuehnel, K U; Schroeter, C D; Moshammer, R ^[1]; Rudenko, A; Foucar, L ^[2]; Herrwerth, O; Lezius, M; Kling, M F ^[3]; Tilborg, J van; Belkacem, A ^[4]; Ueda, K ^[5]; Duesterer, S; Treusch, R ^[6]; Ullrich, J ^[1]

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1. Max-Planck-Institut fuer Kernphysik, 69117 Heidelberg (Germany)
2. Max-Planck Advanced Study Group at CFEL, 22607 Hamburg (Germany)
3. Max-Planck-Institut fuer Quantenoptik, 85748 Garching (Germany)
4. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
5. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai (Japan)
6. DESY, 22607 Hamburg (Germany)

Ultrafast isomerization of acetylene cations ([HC=CH]{sup +}) in the low-lying excited A{sup 2}{Sigma}{sub g}{sup +} 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{sup +}+CH{sub 2}{sup +} 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.

• OSTI ID: 21554500
• Journal Information: Physical Review Letters, Vol. 105, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.105.263002; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION
ACETYLENE
CATIONS
DECAY
EV RANGE 01-10
EXTREME ULTRAVIOLET RADIATION
FREE ELECTRON LASERS
ISOMERIZATION
KINETIC ENERGY
PHOTONS
PULSES
TIME DEPENDENCE
ALKYNES
BOSONS
CHARGED PARTICLES
CHEMICAL REACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EV RANGE
HYDROCARBONS
IONS
LASERS
MASSLESS PARTICLES
ORGANIC COMPOUNDS
RADIATIONS
SORPTION
ULTRAVIOLET RADIATION