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Polarization-Dependent Spectra in the Photoassociative Ionisation of Cold Atoms in a Bright Sodium Beam

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Abstract

The study of cold collisions in samples of optically cooled and confined atoms has been an active area of research since Gould et al. observed the first photoassociative ionisation collisions in a dipole trap.1 Magneto-optical traps (MOTs) and far-off-resonance traps (FORTs) have provided “reaction” cells at temperatures well below lmK, and densities equal to or above 1010 cm−3. Under these conditions of temperature and density only a few partial waves contribute to a binary collision event.2 Trap experiments have been used to study in detail various collisional processes including photoassociation (PA) and the two-step photoassociative ionisation(PAI) of cold atoms,
$$ \eqalign{ & Na\left( {^2{S_{1/2}}} \right) + Na\left( {^2{S_{1/2}}} \right) + {\omega _1} \to Na_2^* \cr & Na_2^* + {\omega _2} \to \left[ {Na_2^{**}} \right] \to Na_2^ + + e \cr} $$

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References

  1. 1.
    P. L. Gould, P,. D. Lett, P. S. Julienne, W. D. Phillips, H. R. Thorsheim, and J. Weiner, Phys. Rev. Lett 60,788 (1988)ADSCrossRefGoogle Scholar
  2. 2.
    For a review of cold and ultracold collisions see, J. Weiner, V. S. Bagnato, S. Zilio, and P. S. Julienne, Rev. Mod. Phys. 71, 1 (1999)ADSCrossRefGoogle Scholar
  3. 3.
    W. Degraffenreid, J. Ramirez-Seranno, Y-M Liu, A. Rosenbaum, and J. Weiner, J. Appl. Phys. B71, 881 (2000)ADSCrossRefGoogle Scholar
  4. 4.
    W. Degraffenreid, Y-M. Liu, J. Ramirez-Serrano, and J. Weiner, Rev. Sci Instr. 71, 2200 (1993)Google Scholar
  5. 5.
    U. Buck in Atomic and Molecular Beam Methods, vol. 1 edited by G. Scoles, (Oxford Press, New York, 1988) pp. 449–456Google Scholar
  6. 6.
    J. Dalibard and C. Cohen-Tannoudji, J. Opt. Soc. Am. B 6, 2023 (1989)ADSCrossRefGoogle Scholar
  7. 7.
    A. Amelink, K. M. Jones, P. D. Lett, P. van der Staten, and H. G. H. Heideman, Phys. Rev. A61, 042707 (2000)ADSCrossRefGoogle Scholar
  8. 8.
    A. Amelink, K. M. Jones, P. D. Lett, P. van der Straten, and H. G. H. Heideman, Phys. Rev. A62, 013408 (2000)ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  1. 1.Laboratory of Atomic, Molecular, and Optical Science and EngineeringUniversity of Maryland, College ParkCollege ParkUSA

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