Molecular-Beam, Laser-RF, Double Resonance Studies of Calcium Monohalide Radicals

  • W. J. Childs
  • D. R. Cok
  • L. S. Goodman
Conference paper
Part of the Springer Series in Optical Sciences book series (SSOS, volume 30)


The molecular-beam, laser-rf, double-resonance technique has been described [1–3] a number of times. In essence, the occurrence of a radiofrequency (rf) transition in the electronic ground state of the molecule under study is detected by an increase in the laser-induced fluorescence of the molecular beam when the rf is on resonance. The technique makes it possible to measure small energy splittings (normally spin-rotational or hyperfine) in the electronic ground state of a molecule to an absolute precision of 1 kHz. The sensitivity of the technique is high because even a very small increase in fluorescence can be easily seen if the rf is swept repeatedly and digital data-handling techniques are used. The technique is useful for ionic [4] as well as for neutral atoms and molecules.


Double Resonance Electronic Ground State Outer Electron High Order Parameter Unpaired Spin Density 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1981

Authors and Affiliations

  • W. J. Childs
    • 1
  • D. R. Cok
    • 1
  • L. S. Goodman
    • 1
  1. 1.Physics Division 203-F105Argonne National LaboratoryArgonneUSA

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