Multiphoton Ionization Via Rydberg States and Effects of High Laser Intensity

  • G. Leuchs
Conference paper
Part of the Springer Series on Atoms+Plasmas book series (SSAOPP, volume 2)


A photoionization experiment is characterized by the initial bound state of the atom, the polarization, frequency, intensity and also temporal distribution of the ionizing radiation, as well as the partial waves describing the final continuum state. The basic observable is the total ionization rate which can be differentiated with respect to the kinetic energy of the emitted photoelectrons yielding total and partial photoionization cross-sections. Additional information can be extracted if the angular distribution of either electron emission [1,2] or spin polarization is measured [3]. The angle-resolved measurement reveals interference effects which average to zero whenever the signal is integrated over all angles, quite analogously to the angular correlations observed, e.g., in γ-γ cascades or scattering of particles.


Angular Distribution Polar Diagram Rydberg State Principal Quantum Number Multiphoton Ionization 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • G. Leuchs
    • 1
  1. 1.Joint Institute for Laboratory AstrophysicsUniversity of Colorado and National Bureau of StandardsBoulderUSA

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