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Sökning: L773:9782759809561

  • Resultat 1-6 av 6
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1.
  • Butkus, Vytautas, et al. (författare)
  • Phase relationships of spectral oscillations in 2D molecular spectroscopy
  • 2013
  • Ingår i: 18th International Conference on Ultrafast Phenomena, UP 2012. - : EDP Sciences. - 9782759809561 ; 41
  • Konferensbidrag (refereegranskat)abstract
    • Spectral oscillations in 2D molecular spectroscopy of the displaced oscillator system and their phase relationships are analyzed. The phase maps of the dispersive and absolute-valued signals give hints for experimental probing of peak oscillations.
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3.
  • Leitner, Torsten, 1979-, et al. (författare)
  • Coherent wave packet dynamics in photo-excited Nal
  • 2013
  • Ingår i: EPJ Web of Conferences. - : EDP Sciences. - 2100-014X. - 9782759809561 ; 41, s. 02027-
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • Time and energy resolved photoelectron distributions of photo-excited Nal are presented. A splitting in the photo-excited state suggested by calculations of the intramolecular potential energy surfaces could be confirmed experimentally for the first time.
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4.
  • McFarland, B. K., et al. (författare)
  • Probing nucleobase photoprotection with soft x-rays
  • 2013
  • Ingår i: XVIIITH INTERNATIONAL CONFERENCE ON ULTRAFAST PHENOMENA. - : EDP Sciences. - 9782759809561 ; , s. 07004-
  • Konferensbidrag (refereegranskat)abstract
    • Nucleobases absorb strongly in the ultraviolet region, leading to molecular excitation into reactive states. The molecules avoid the photoreactions by funnelling the electronic energy into less reactive states on an ultrafast timescale via non-Born-Oppenheimer dynamics. Current theory on the nucleobase thymine discusses two conflicting pathways for the photoprotective dynamics. We present our first results of our free electron laser based UV-pump soft x-ray-probe study of the photoprotection mechanism of thymine. We use the high spatial sensitivity of the Auger electrons emitted after the soft x-ray pulse induced core ionization. Our transient spetra show two timescales on the order of 200 fs and 5 ps, in agreement with previous (all UV) ultrafast experiments. The timescales appear at different Auger kinetic energies which will help us to decipher the molecular dynamics.
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6.
  • Wernet, Philippe, et al. (författare)
  • Mapping chemical bonding of reaction intermediates with femtosecond X-ray laser spectroscopy
  • 2013
  • Ingår i: XVIIIth International Conference on Ultrafast Phenomena. - : EDP Sciences. - 9782759809561 ; , s. 05025-
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • We determine the pathways in the photo-dissociation reactions of Fe(CO)5 both in the gas phase and in solution by mapping the valence electronic structure of the reaction intermediates with femtosecond X-ray laser spectroscopy.
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  • Resultat 1-6 av 6

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