Il Nuovo Cimento D

, Volume 17, Issue 1, pp 9–16 | Cite as

Laser-enhanced ionization studies of the blue satellite band in the Ca−Ar system associated with the electric-quadrupole transition 4s 21 S 0→4s3d 1 D 2 of calcium

  • M. A. Gondal
  • M. A. Khan
  • M. H. Rais


The collision-assisted electric-quadrupole transition 4s 21 S 0→4s3d 1 D 2 of calcium at 4575 Å has been observed using the laser-enhanced ionization technique for the first time. A blue satellite band due to the interaction of calcium 4s3d 1 D 2 state with argon1 S 0 has also been detected at 4527 Å which is shifted by 48 Å from the isolated atomic calcium line. The line broadening cross-section for the blue satellite has been calculated by measuring its collisional broadening at various argon pressures. Important processes involved in the generation of this blue satellite band are qualitatively discussed.

PACS 34.50.Fa

Electronic excitation and ionization of atoms (including beam-foil excitation and ionization) 

PACS 32.70.Jz

Line shapes widths and shifts 

PACS 31.70

Effects of molecular interactions on electronic structure 


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Copyright information

© Società Italiana di Fisica 1995

Authors and Affiliations

  • M. A. Gondal
    • 1
  • M. A. Khan
    • 1
  • M. H. Rais
    • 1
  1. 1.Laser Research Laboratory, Energy Resources Division, Research InstituteKing Fahd University of Petroleum and MineralsDhahranSaudi Arabia

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