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Laser stabilisation for velocity-selective atomic absorption

Meijer, H. A. J., Meulen, H. P. V. D., Ditewig, F., Wisman, C. J. & Morgenstern, R., 1987, In : Journal of Physics E%3A Scientific Instruments. 20, 3, 4 p.

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DOI

  • H.A.J. Meijer
  • H.P. van der Meulen
  • F. Ditewig
  • C.J. Wisman
  • R. Morgenstern
A relatively simple method is described for stabilising a dye laser at a frequency ν = ν0 + νc in the vicinity of an atomic resonance frequency ν0. The Doppler effect is exploited by looking for atomic fluorescence when a laser beam is crossed with an atomic beam at certain angles αi. Absolute preselection of νc (the deviation from resonance) up to ~120 MHz is possible by the choice of αi, and a laser stabilisation to better than 1 MHz is obtained. We apply this stabilisation to collision experiments with velocity-selected excited Na atoms.
Original languageEnglish
Number of pages4
JournalJournal of Physics E%3A Scientific Instruments
Volume20
Issue number3
Publication statusPublished - 1987

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