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Femtosecond electronic response of atoms to ultra-intense X-rays
An era of exploring the interactions of high-intensity, hard X-rays with matter has begun with the start-up of a hard-X-ray free-electron laser, the Linac Coherent Light Source (LCLS). UnderstandingExpand
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Time-resolved pump-probe experiments at the LCLS.
The first time-resolved x-ray/optical pump-probe experiments at the SLAC Linac Coherent Light Source (LCLS) used a combination of feedback methods and post-analysis binning techniques to synchronizeExpand
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Ultra-fast and ultra-intense x-ray sciences: first results from the Linac Coherent Light Source free-electron laser
X-ray free-electron lasers (FELs) produce femtosecond x-ray pulses with unprecedented intensities that are uniquely suited for studying many phenomena in atomic, molecular, and optical (AMO) physics.Expand
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Nonlinear atomic response to intense ultrashort x rays.
The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated. The production of Ne(9+) is observed at x-ray frequencies below the Ne(8+), 1s(2)Expand
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Progress report on the LCLS XFEL at SLAC
The Linac Coherent Light Source (LCLS) Project will be an x-ray free-electron laser. It is intended to produce pulses of 800-8,000 eV photons. Each pulse, produced with a repetition frequency of upExpand
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Angular distributions of helium satellites He+ nl(n=2−7)
Helium photoelectron satellites He+ nl (n=2-7) have been studied with monochromatized synchrotron radiation. The angular distributions were determined in the photon energy range from 80 eV to 603 eVExpand
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Ultraintense x-ray induced ionization, dissociation, and frustrated absorption in molecular nitrogen.
Sequential multiple photoionization of the prototypical molecule N2 is studied with femtosecond time resolution using the Linac Coherent Light Source (LCLS). A detailed picture of intense x-rayExpand
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Probing ultrafast ππ*/nπ* internal conversion in organic chromophores via K-edge resonant absorption
Many photoinduced processes including photosynthesis and human vision happen in organic molecules and involve coupled femtosecond dynamics of nuclei and electrons. Organic molecules with heteroatomsExpand
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Double-core-hole spectroscopy for chemical analysis with an intense X-ray femtosecond laser
  • N. Berrah, L. Fang, +17 authors M. Ehara
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences
  • 3 October 2011
Theory predicts that double-core-hole (DCH) spectroscopy can provide a new powerful means of differentiating between similar chemical systems with a sensitivity not hitherto possible. Although DCHExpand
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