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Physics Letters A

An efficient method for measuring atomic and molecular lifetimes using a modulated or deflected CW dye laser beam

Martin G. H. Gustavsson, Hans Lundberg, Sune R. Svanberg

Published Dec 1, 1977• 13 citations
Publisher
DOI
10.1016/0375-9601(77)90365-6

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Journal of the Optical Society of America•Jul 1, 1979•67 citations
Isotopes of barium are selectively excited to a metastable state using a single ring dye laser. The excited atoms are then deflected out of an atomic beam by an inhomogeneous magnetic field. The deflection of the beam is studied using a hot wire detector and a quadrupole mass spectrometer. Measurements are presented showing that nearly all atoms of a particle isotope can be excited from the 6s{sup 2} ground still to the 6s5d state and subsequently spatially separated. This method of isotope separation requires metastable states having lifetimes greater than about 100 {mu}sec. These states can be readily excited from the ground state in atoms such as the Group II elements.