Kilohertz laser ablation for doping helium nanodroplets
Journal Article
·
· Review of Scientific Instruments
- Physikalisches Institut, Universitaet Freiburg, D-79104 Freiburg (Germany)
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.
- OSTI ID:
- 21024430
- Journal Information:
- Review of Scientific Instruments, Vol. 78, Issue 10; Other Information: DOI: 10.1063/1.2796849; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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