Photoionization cross-section measurements from the 2p, 3d and 3s excited states of lithium

  • N. Amin
  • S. Mahmood
  • M. Saleem
  • M. A. Kalyar
  • M. A. Baig
Atomic Physics

DOI: 10.1140/epjd/e2006-00179-x

Cite this article as:
Amin, N., Mahmood, S., Saleem, M. et al. Eur. Phys. J. D (2006) 40: 331. doi:10.1140/epjd/e2006-00179-x

Abstract.

The photoionization cross-sections from the 2p2P1/2, 3/2, 3d2D3/2, 5/2 and 3s2S1/2 excited states of lithium have been measured at different ionizing laser wavelengths, above the first ionization threshold. The experiments are performed by using a thermionic diode working in the space charge limited mode and the cross-sections are measured by employing the saturation technique. By changing the ionization photon energy, a smooth frequency dependence of the cross-sections has been observed for the 2p and 3d states. The cross-section from the 3s excited state has been measured at a single photon energy. The measured values of the photoionization cross are compared with the available data.

PACS.

32.30.Jc Visible and ultraviolet spectra 32.80.Rm Multiphoton ionization and excitation to highly excited states 

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  • N. Amin
    • 1
  • S. Mahmood
    • 1
  • M. Saleem
    • 1
  • M. A. Kalyar
    • 1
  • M. A. Baig
    • 1
  1. 1.Department of Physics, Quaid-i-Azam UniversityAtomic and Molecular Physics LaboratoryIslamabadPakistan

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