https://doi.org/10.1140/epjd/e2005-00012-2
Three-step laser excitation of the 6p3/2ns, nd, ng autoionizing Rydberg levels via the 6p5f 1/2[5/2]2 level of lead
1
Atomic and Molecular Physics Laboratory, Department of Physics, Quaid-i-Azam
University, Islamabad 45320, Pakistan
2
Applied Physics Division, PINSTECH, PO Nilore, Islamabad, Pakistan
Corresponding author: a baig@qau.edu.pk
Received:
28
February
2004
Revised:
13
August
2004
Published online:
1
February
2005
Odd parity autoionizing Rydberg levels of atomic lead in
the energy region above the 
ionization threshold have been
investigated using three-step laser excitation in conjunction with an atomic
beam apparatus. The 
(J = 1, 2), 
(J = 1, 2, 3) and
(J = 2, 3) levels have been observed from the 6p5f 
intermediate level. Energy values and FWHM of forty levels belonging to the
, and configurations are presented. Six
levels based on the (5, 
) configurations and
three levels attached to the 
configuration are reported for the
first time. The present study of the low-lying autoionizing levels attached
to the 
(J = 2, 3) configuration completes the series adjacent to
the 
limit.
PACS: 32.30.-r – Atomic spectra / 32.30.Jc – Visible and ultraviolet spectra / 32.80.Rm – Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
