Ultrafast photo-excitation dynamics in isolated, neutral water clusters

DOI PDF 被引用文献4件
  • H. T. Liu
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • J. P. Müller
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • M. Beutler
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • M. Ghotbi
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • F. Noack
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • W. Radloff
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • N. Zhavoronkov
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • C. P. Schulz
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany
  • I. V. Hertel
    Max Born Institute , Max-Born-St. 2a, 12489 Berlin-Adlershof, Germany

抄録

<jats:p>Using the efficient nonlinear conversion scheme which was recently developed in our group [M. Beutler, M. Ghotbi, F. Noack, and I. V. Hertel, Opt. Lett. 134, 1491 (2010); M. Ghotbi, M. Beutler, and F. Noack, ibid 35, 3492 (2010)] to provide intense sub-50 fs vacuum ultraviolet laser pulses we have performed the first real time study of ultrafast, photo-induced dynamics in the electronically excited \documentclass[12pt]{minimal}\begin{document}$\tilde{A}$\end{document}Ã-state of water clusters (H2O)n and (D2O)n, n = 2–10. Three relevant time scales, 1.8–2.5, 10–30, and 50–150 fs, can be distinguished which—guided by the available theoretical results—are attributed to H (D)-ejection, OH (OD) dissociation, and a nonadiabatic transition through a conical intersection, respectively. While a direct quantitative comparison is only very preliminary, the present results provide a crucial test for future modeling of excited state dynamics in water clusters, and should help to unravel some of the many still unresolved puzzles about water.</jats:p>

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