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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 13, Iss. 2 — Feb. 1, 1996
  • pp: 244–256

Photoabsorption and photoionization of titanium from excited states

Gregory Miecznik and Chris H. Greene  »View Author Affiliations

JOSA B, Vol. 13, Issue 2, pp. 244-256 (1996)

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Photoabsorption and photoionization cross sections are reported from 3d24s4p3D02, 3d24s4p3G03,4, and 3d34p5F05 initial states of titanium, reaching final-state energies from −500 to 8000 cm−1 relative to the first ionization threshold 3d24s4F3/2. The nearly ab initio calculations use the eigenchannel R-matrix method, the multichannel quantum-defect theory, and the LS → jj relativistic recoupling frame transformation. The last two steps use experimental energies of Ti+ levels. Radial orbitals needed to calculate short-range interaction parameters are obtained in a multiconfiguration Hartree–Fock approximation that directly generates natural orbitals for the target states. This method bypasses an intermediate step followed in earlier eigenchannel R-matrix studies, in which a set of primitive orbitals was used. Theoretical cross sections are compared with experimental data, in particular near the two lowest ionization thresholds 3d24s4F and 3d3 4F. Our results, which at these energies are accurate to within errors of ˜0.03 in the quantum defects, account for most of the experimental features. Predictions are also made for the spectra at higher energies, where overlapping Rydberg series seriously complicate the photoabsorption pattern.

© 1996 Optical Society of America

Gregory Miecznik and Chris H. Greene, "Photoabsorption and photoionization of titanium from excited states," J. Opt. Soc. Am. B 13, 244-256 (1996)

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  1. F. Robicheaux and C. H. Greene, Phys. Rev. A 48, 4429 (1993).
  2. F. Robicheaux and C. H. Greene, Phys. Rev. A 48, 4441 (1993).
  3. D. J. Armstrong and F. Robicheaux, Phys. Rev. A 48, 4450 (1993).
  4. C. H. Greene, Phys. Rev. A 32, 1880 (1985).
  5. C. H. Greene, Fundamental Processes of Atomic Dynamics (Plenum, New York, 1988), p. 105; C. H. Greene and L. Kim, Phys. Rev. A 38, 5953 (1988).
  6. F. Robicheaux and C. H. Greene, Phys. Rev. A 46, 3821 (1992).
  7. R. H. Reid, K. Bartschat, and P. G. Burke, J. Phys. B 25, 3175 (1992).
  8. A. K. Pradhan and K. A. Berrington, J. Phys. B 26, 157 (1993).
  9. J. E. Sohl, Y. Zhu, and R. D. Knight, J. Opt. Soc. Am. B 7, 9 (1990).
  10. R. H. Page and C. S. Gudeman, J. Opt. Soc. Am. B 7, 1761 (1990).
  11. K. W. McLaughlin and D. W. Duquette, J. Opt. Soc. Am. B 9, 1953 (1992).
  12. M. J. Seaton, Rep. Prog. Phys. 46, 167 (1983).
  13. C. H. Greene and M. Aymar, Phys. Rev. A 44, 1773 (1991).
  14. C. Froese Fischer, The Hartree-Fock Method for Atoms (Wiley, New York, 1977).
  15. M. Aymar, J. Phys. B 23, 2697 (1990).
  16. P.-O. Löwdin, Phys. Rev. 97, 1474 (1955).
  17. L. Brillouin, J. Phys. (Paris) 3, 373 (1932).
  18. C. Froese Fischer, Comp. Phys. Commun. 64, 369 (1991).
  19. R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981), p. 180.
  20. J. Sugar and C. Corliss, J. Phys. Chem. Ref. Data, 14 Suppl. 2, 147 (1985).
  21. Q. Wang and C. H. Greene, Phys. Rev. A 44, 1874 (1991).
  22. F. Robicheaux, Phys. Rev. A 48, 4162 (1993).
  23. R. P. Wood, C. H. Greene, and D. Armstrong, Phys. Rev. A 47, 229 (1993).
  24. W. Stachowska, M. Fabiszisky, and J. Dembczynski, Z. Phys. D 32, 27 (1994).
  25. M. Aymar, C. H. Green, and E. Luc-Koenig, "Multichannel spectroscopy of complex atoms," Rev. Mod. Phys. (to be published); G. Miecznik, C. H. Greene, and F. Robicheaux, Phys. Rev. A 51, 513 (1995).

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