Applied Physics B

, Volume 45, Issue 4, pp 273–277 | Cite as

High-resolution velocity selecting separated-field excitation of a calcium atomic beam

  • A. Morinaga
  • J. Helmcke
Contributed Papers


It is shown that pulsed separated-field excitation provides a useful method for time-of-flight velocity selection of atomic beams. High-resolution nonlinear optical Ramsey fringes generated by one narrow velocity group have been observed at the (3P11S0) intercombination line of Ca. The corresponding second-order Doppler broadening deduced from the Fourier transform of the fringe signal could be reduced by about one order of magnitude from 3.7 kHz for cw separated field excitation to 0.4 kHz.


42.65G 32.80 06.30F 


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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • A. Morinaga
    • 1
  • J. Helmcke
    • 1
  1. 1.Physikalisch-Technische BundesanstaltBraunschweigFed. Rep. Germany

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