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Marcel Mudrich

Imaging Excited-State Dynamics of Doped He Nanodroplets in Real-Time

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  • Johannes Von Vangerow, Albert-Ludwigs-Universität Freiburg
  • ,
  • François Coppens, Team 9 Prevention and Promotion of Carcinogenesis by Food
  • ,
  • Antonio Leal, Universitat Autònoma Barcelona
  • ,
  • Martí Pi, Universitat Autònoma Barcelona
  • ,
  • Manuel Barranco, Team 9 Prevention and Promotion of Carcinogenesis by Food, Universitat Autònoma Barcelona
  • ,
  • Nadine Halberstadt, Team 9 Prevention and Promotion of Carcinogenesis by Food
  • ,
  • Frank Stienkemeier, Albert-Ludwigs-Universität Freiburg
  • ,
  • Marcel Mudrich

The real-time dynamics of excited alkali metal atoms (Rb) attached to quantum fluid He nanodroplets is investigated using femtosecond imaging spectroscopy and time-dependent density functional theory. We disentangle the competing dynamics of desorption of excited Rb atoms off the He droplet surface and solvation inside the droplet interior as the Rb atom is ionized. For Rb excited to the 5p and 6p states, desorption occurs on starkly differing time scales (∼100 versus ∼1 ps, respectively). The comparison between theory and experiment indicates that desorption proceeds either impulsively (6p) or in a transition regime between impulsive dissociation and complex desorption (5p).

OriginalsprogEngelsk
TidsskriftThe Journal of Physical Chemistry Letters
Vol/bind8
Nummer1
Sider (fra-til)307-312
Antal sider6
ISSN1948-7185
DOI
StatusUdgivet - 5 jan. 2017
Eksternt udgivetJa

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