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Marcel Mudrich

Kilohertz laser ablation for doping helium nanodroplets

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DOI

  • M. Mudrich
  • B. Forkl, Albert-Ludwigs-Universität Freiburg
  • ,
  • S. Müller, Albert-Ludwigs-Universität Freiburg
  • ,
  • M. Dvorak, Albert-Ludwigs-Universität Freiburg
  • ,
  • O. Bünermann, Albert-Ludwigs-Universität Freiburg
  • ,
  • F. Stienkemeier, Albert-Ludwigs-Universität Freiburg

A new setup for doping helium nanodroplets by means of laser ablation at kilohertz repetition rate is presented. The doping process is characterized and two distinct regimes of laser ablation are identified. The setup is shown to be efficient and stable enough to be used for spectroscopy, as demonstrated on beam depletion spectra of lithium atoms attached to helium nanodroplets. For the first time, helium droplets are doped with high temperature refractory materials such as titanium and tantalum. Doping with the nonvolatile DNA basis guanine is found to be efficient and a number of oligomers are detected.

OriginalsprogEngelsk
Artikelnummer103106
TidsskriftReview of Scientific Instruments
Vol/bind78
Nummer10
ISSN0034-6748
DOI
StatusUdgivet - 2007
Eksternt udgivetJa

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