Laser optogalvanic observations and MQDT analysis ofmp5ndJ= 3 autoionizing resonances in Ar, Kr and Xe
Year: 2006
Type: article
Abstract: We report new measurements of the spectra of argon, krypton and xenon in the autoionization region using a two-step resonant laser excitation and optogalvanic detection technique. By selecting ( m )p 5 ( m + 1)p'[3/2] 2 as an intermediate state ( m = 4, 5 and 6 for Ar, Kr and Xe, respectively), we have been able to single out the ( m )p 5 n d[5/2] 3 autoionizing resonances in their spectra. The MQDT parameters have been derived from the analysis of the series perturbations among the ( m )p 5 n d[5/2] 3 , ( m )p 5 n d[7/2] 3 and ( m )p 5 n d'[5/2] 3 series in the discrete region using the phase shifted formulation of the three-channel quantum defect theory and from the line profile analysis of the autoionizing resonances above the first ionization threshold. The predicted reduced widths for the autoionizing resonances based on the series perturbation analysis show good agreement with those of the experimentally observed profiles. Accurate values of the resonance energies, quantum defects and reduced widths are reported.
Authors: M A Baig, M Hanif, M Aslam, S A Bhatti
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1972158705