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Marcel Mudrich

Charging dynamics of dopants in helium nanoplasmas

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

  • Andreas Heidenreich, Ikerbasque, the Basque Foundation for Science
  • ,
  • Barbara Grüner, Albert-Ludwigs-Universität Freiburg
  • ,
  • Dominik Schomas, Albert-Ludwigs-Universität Freiburg
  • ,
  • Frank Stienkemeier, Albert-Ludwigs-Universität Freiburg
  • ,
  • Siva Rama Krishnan, Indian Institute of Technology, Madras, Indian Institute of Technology, Tata Institute of Fundamental Research, Max-Planck-Institut für Kernphysik, IBM-India Semiconductor R and D Center, Indian Institute of Technology (IIT) - Madras
  • ,
  • Marcel Mudrich
We present a combined experimental and theoretical study of the charging dynamics of helium nanodroplets doped with atoms of different species and irradiated by intense near-infrared laser pulses (≤1015 W cm−2). In particular, we elucidate the interplay of dopant ionization inducing the ignition of a helium nanoplasma, and the charging of the dopant atoms driven by the ionized helium host. Most efficient nanoplasma ignition and charging is found when doping helium droplets with xenon atoms, in which case high charge states of both helium (He2+) and of xenon (Xe21+) are detected. In contrast, only low charge states of helium and dopants are measured when doping with potassium and calcium atoms. Classical molecular dynamics simulations which include focal averaging generally reproduce the experimental results and provide detailed insights into the correlated charging dynamics of guest and host clusters.
TidsskriftJournal of Modern Optics
Sider (fra-til)1061-1077
StatusUdgivet - 2017
Eksternt udgivetJa

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