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Time-resolved site-...
Time-resolved site-selective imaging of predissociation and charge transfer dynamics : The CH3I B-band
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- Forbes, Ruaridh (författare)
- Stanford Linear Accelerator Center (SLAC)
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- Allum, Felix (författare)
- University of Oxford
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- Bari, Sadia (författare)
- German Electron Synchrotron (DESY)
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- Boll, Rebecca (författare)
- European XFEL GmbH
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- Borne, Kurtis (författare)
- Kansas State University
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- Brouard, Mark (författare)
- University of Oxford
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- Bucksbaum, Philip H. (författare)
- Stanford Linear Accelerator Center (SLAC)
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- Ekanayake, Nagitha (författare)
- German Electron Synchrotron (DESY)
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- Erk, Benjamin (författare)
- German Electron Synchrotron (DESY)
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- Howard, Andrew J. (författare)
- Stanford Linear Accelerator Center (SLAC)
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- Johnsson, Per (författare)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Lee, Jason W.L. (författare)
- German Electron Synchrotron (DESY)
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- Manschwetus, Bastian (författare)
- German Electron Synchrotron (DESY)
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- Mason, Robert (författare)
- University of Oxford
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- Passow, Christopher (författare)
- German Electron Synchrotron (DESY)
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- Peschel, Jasper (författare)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Rivas, Daniel E. (författare)
- European XFEL GmbH
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- Rörig, Aljoscha (författare)
- European XFEL GmbH
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- Rouzée, Arnaud (författare)
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy
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- Vallance, Claire (författare)
- University of Oxford
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- Ziaee, Farzaneh (författare)
- Kansas State University
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- Rolles, Daniel (författare)
- Kansas State University
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- Burt, Michael (författare)
- University of Oxford
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(creator_code:org_t)
- 2020-10-23
- 2020
- Engelska.
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Ingår i: Journal of Physics B: Atomic, Molecular and Optical Physics. - : IOP Publishing. - 0953-4075 .- 1361-6455. ; 53:22
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https://doi.org/10.1...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The predissociation dynamics of the 6s (B2E) Rydberg state of gas-phase CH3I were investigated by time-resolved Coulomb-explosion imaging using extreme ultraviolet (XUV) free-electron laser pulses. Inner-shell ionization at the iodine 4d edge was utilized to provide a site-specific probe of the ensuing dynamics. The combination of a velocity-map imaging (VMI) spectrometer coupled with the pixel imaging mass spectrometry (PImMS) camera permitted three-dimensional ionic fragment momenta to be recorded simultaneously for a wide range of iodine charge states. In accord with previous studies, initial excitation at 201.2 nm results in internal conversion and subsequent dissociation on the lower-lying A-state surface on a picosecond time scale. Examination of the time-dependent yield of low kinetic energy iodine fragments yields mechanistic insights into the predissociation and subsequent charge transfer following multiple ionization of the iodine products. The effect of charge transfer was observed through differing delay-dependencies of the various iodine charge states, from which critical internuclear distances for charge transfer could be inferred and compared to a classical over-the-barrier model. Time-dependent photofragment angular anisotropy parameters were extracted from the central slice of the Newton sphere, without Abel inversion, and highlight the effect of rotation of the parent molecule before dissociation, as observed in previous
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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Forbes, Ruaridh
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Allum, Felix
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Bari, Sadia
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Boll, Rebecca
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Borne, Kurtis
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Brouard, Mark
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visa fler...
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Bucksbaum, Phili ...
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Ekanayake, Nagit ...
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Erk, Benjamin
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Howard, Andrew J ...
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Johnsson, Per
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Lee, Jason W.L.
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Manschwetus, Bas ...
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Mason, Robert
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Passow, Christop ...
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Peschel, Jasper
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Rivas, Daniel E.
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Rörig, Aljoscha
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Rouzée, Arnaud
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Vallance, Claire
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Ziaee, Farzaneh
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Rolles, Daniel
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Burt, Michael
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