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The European Physical Journal D

, Volume 63, Issue 2, pp 281–288 | Cite as

Resonant charging of Xe clusters in helium nanodroplets under intense laser fields

  • C. PeltzEmail author
  • T. Fennel
Topical issue: ISSPIC 15 - Spectroscopy and dynamics with short laser pulses Regular Article

Abstract

We theoretically investigate the impact of multiple plasmon resonances on the charging of Xe clusters embedded in He nanodroplets under intense pump-probe laser excitation (τ = 25 fs, I 0 = 2.5 × 1014   W/cm2, λ = 800 nm). Our molecular dynamics simulations on Xe309He10 000 and comparison to results for free Xe309 give clear evidence for selective resonance heating in the He shell and the Xe cluster, but no corresponding double hump feature in the final Xe charge spectra is found. Though the presence of the He shell substantially increases the maximum charge states, the pump-probe dynamics of the Xe spectra from the embedded system is similar to that of the free species. In strong contrast to that, the predicted electron spectra do show well-separated and pronounced features from highly efficient plasmon assisted electron acceleration for both resonances in the embedded clusters. A detailed analysis of the underlying ionization and recombination dynamics is presented and explains the apparent disaccord between the resonance features in the ion and electron spectra.

Keywords

Charge State Electron Impact Ionization Pulse Delay Optimal Delay Tunnel Ionization 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Institute of Physics, University of Rostock, Universitätsplatz 3RostockGermany

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