Abstract

The high-dispersion absorption spectrum of Ca i is reported for the 1430–1340 Å region. Observations include transitions from 4s2 1S0 to the J = T channels associated with the 4p2P° ion core of Ca ii. Autoionization and channel mixing of the observed J = 1° channels are correlated using methods based on multichannel quantum defect theory.

© 1980 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ca i in the 1580–2090 Å region,” J. Opt. Soc. Am. 63, 1454–1462 (1973).
    [Crossref]
  2. T. J. McIlrath and J. L. Carlsten, “Production of large numbers of atoms in a selected excited state by laser optical pumping: calcium,” J. Phys. B 6, 697–708 (1973).
    [Crossref]
  3. J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
    [Crossref]
  4. J. A. Armstrong, J. J. Wynne, and P. Esherick, “Bound, odd-parity J= 1 spectra of the alkaline earths: Ca, Sr, and Ba,” J. Opt. Soc. Am. 69, 211–230(1979).
    [Crossref]
  5. M. W. D. Mansfield and G. H. Newsom, “The Ca absorption spectrum in the vacuum ultraviolet: excitation of the 3p-subshell,” Proc. R. Soc. London Sect. A 357, 77–102 (1977).
    [Crossref]
  6. M. W. D. Mansfield, “The Ca i absorption spectrum in the extreme ultraviolet: excitation of the 2p-subshell,” Proc. R. Soc. London Sect. A 348, 143–151 (1976).
    [Crossref]
  7. R. W. Ditchburn and R. D. Hudson, “The absorption of light by calcium vapor (2100 to 1080 Å),” Proc. R. Soc. London Sect. A 256, 53–61 (1960).
    [Crossref]
  8. M. J. Seaton, “Quantum Defect Theory. I. General Formulation,” Proc. Phys. Soc. London 88, 801–814 (1966).
    [Crossref]
  9. K. T. Lu and U. Fano, “Graphical analysis of perturbed Rydberg series,” Phys. Rev. A 2, 81–86 (1970).
    [Crossref]
  10. C. M. Brown and M. L. Ginter (unpublished).
  11. C. E. Moore, Atomic Energy Levels, I, Natl. Bur. Stand. (U.S.) Circ. No. 467 (U.S. GPO, Washington, D.C., 1949), p. 246.
  12. C. M. Brown, R. H. Naber, S. G. Tilford, and M. L. Ginter, “High temperature furnance system for vacuum ultraviolet spectroscopic studies,” Appl. Opt. 12, 1858–1864 (1973).
    [Crossref] [PubMed]
  13. C. M. Brown and M. L. Ginter, “Absorption spectrum of Mn i between 1305 and 2040 Å,” J. Opt. Soc. Am. 68, 1541–1558 (1978); “Absorption spectrum of Au i between 1300 and 1900 Å,”  68, 243–246 (1978), and references therein.
    [Crossref]
  14. C. M. Brown, S. G. Tilford, and M. L. Ginter, “Extended identifications of odd energy levels in Si i: Lu-Fano graphical analysis,” J. Opt. Soc. Am. 65, 385–388 (1975).
    [Crossref]
  15. U. Feldman, C. M. Brown, G. Doschek, C. E. Moore, and F. D. Rosenberg, “XUV spectrum of C i observed from Skylab during a solar flare,” J. Opt. Soc. Am. 66, 853–859 (1976).
    [Crossref]
  16. C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ge i between 1500 and 1900 Å,” J. Opt. Soc. Am. 67, 584–606 (1977).
    [Crossref]
  17. C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Sn i between 1580 and 2040 Å,” J. Opt. Soc. Am. 67, 607–622 (1977).
    [Crossref]
  18. C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Pb i between 1350 and 2041 Å,” J. Opt. Soc. Am. 67, 1240–1251 (1977).
    [Crossref]
  19. C. M. Brown and M. L. Ginter, “Absorption spectrum of Ba i between 1770 and 1560 Å,” J. Opt. Soc. Am. 68, 817–825 (1978).
    [Crossref]

1979 (1)

1978 (2)

1977 (5)

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ge i between 1500 and 1900 Å,” J. Opt. Soc. Am. 67, 584–606 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Sn i between 1580 and 2040 Å,” J. Opt. Soc. Am. 67, 607–622 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Pb i between 1350 and 2041 Å,” J. Opt. Soc. Am. 67, 1240–1251 (1977).
[Crossref]

M. W. D. Mansfield and G. H. Newsom, “The Ca absorption spectrum in the vacuum ultraviolet: excitation of the 3p-subshell,” Proc. R. Soc. London Sect. A 357, 77–102 (1977).
[Crossref]

J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
[Crossref]

1976 (2)

M. W. D. Mansfield, “The Ca i absorption spectrum in the extreme ultraviolet: excitation of the 2p-subshell,” Proc. R. Soc. London Sect. A 348, 143–151 (1976).
[Crossref]

U. Feldman, C. M. Brown, G. Doschek, C. E. Moore, and F. D. Rosenberg, “XUV spectrum of C i observed from Skylab during a solar flare,” J. Opt. Soc. Am. 66, 853–859 (1976).
[Crossref]

1975 (1)

1973 (3)

1970 (1)

K. T. Lu and U. Fano, “Graphical analysis of perturbed Rydberg series,” Phys. Rev. A 2, 81–86 (1970).
[Crossref]

1966 (1)

M. J. Seaton, “Quantum Defect Theory. I. General Formulation,” Proc. Phys. Soc. London 88, 801–814 (1966).
[Crossref]

1960 (1)

R. W. Ditchburn and R. D. Hudson, “The absorption of light by calcium vapor (2100 to 1080 Å),” Proc. R. Soc. London Sect. A 256, 53–61 (1960).
[Crossref]

Armstrong, J. A.

J. A. Armstrong, J. J. Wynne, and P. Esherick, “Bound, odd-parity J= 1 spectra of the alkaline earths: Ca, Sr, and Ba,” J. Opt. Soc. Am. 69, 211–230(1979).
[Crossref]

J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
[Crossref]

Brown, C. M.

C. M. Brown and M. L. Ginter, “Absorption spectrum of Ba i between 1770 and 1560 Å,” J. Opt. Soc. Am. 68, 817–825 (1978).
[Crossref]

C. M. Brown and M. L. Ginter, “Absorption spectrum of Mn i between 1305 and 2040 Å,” J. Opt. Soc. Am. 68, 1541–1558 (1978); “Absorption spectrum of Au i between 1300 and 1900 Å,”  68, 243–246 (1978), and references therein.
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Pb i between 1350 and 2041 Å,” J. Opt. Soc. Am. 67, 1240–1251 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ge i between 1500 and 1900 Å,” J. Opt. Soc. Am. 67, 584–606 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Sn i between 1580 and 2040 Å,” J. Opt. Soc. Am. 67, 607–622 (1977).
[Crossref]

U. Feldman, C. M. Brown, G. Doschek, C. E. Moore, and F. D. Rosenberg, “XUV spectrum of C i observed from Skylab during a solar flare,” J. Opt. Soc. Am. 66, 853–859 (1976).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Extended identifications of odd energy levels in Si i: Lu-Fano graphical analysis,” J. Opt. Soc. Am. 65, 385–388 (1975).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ca i in the 1580–2090 Å region,” J. Opt. Soc. Am. 63, 1454–1462 (1973).
[Crossref]

C. M. Brown, R. H. Naber, S. G. Tilford, and M. L. Ginter, “High temperature furnance system for vacuum ultraviolet spectroscopic studies,” Appl. Opt. 12, 1858–1864 (1973).
[Crossref] [PubMed]

C. M. Brown and M. L. Ginter (unpublished).

Carlsten, J. L.

T. J. McIlrath and J. L. Carlsten, “Production of large numbers of atoms in a selected excited state by laser optical pumping: calcium,” J. Phys. B 6, 697–708 (1973).
[Crossref]

Ditchburn, R. W.

R. W. Ditchburn and R. D. Hudson, “The absorption of light by calcium vapor (2100 to 1080 Å),” Proc. R. Soc. London Sect. A 256, 53–61 (1960).
[Crossref]

Doschek, G.

Esherick, P.

J. A. Armstrong, J. J. Wynne, and P. Esherick, “Bound, odd-parity J= 1 spectra of the alkaline earths: Ca, Sr, and Ba,” J. Opt. Soc. Am. 69, 211–230(1979).
[Crossref]

J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
[Crossref]

Fano, U.

K. T. Lu and U. Fano, “Graphical analysis of perturbed Rydberg series,” Phys. Rev. A 2, 81–86 (1970).
[Crossref]

Feldman, U.

Ginter, M. L.

Hudson, R. D.

R. W. Ditchburn and R. D. Hudson, “The absorption of light by calcium vapor (2100 to 1080 Å),” Proc. R. Soc. London Sect. A 256, 53–61 (1960).
[Crossref]

Lu, K. T.

K. T. Lu and U. Fano, “Graphical analysis of perturbed Rydberg series,” Phys. Rev. A 2, 81–86 (1970).
[Crossref]

Mansfield, M. W. D.

M. W. D. Mansfield and G. H. Newsom, “The Ca absorption spectrum in the vacuum ultraviolet: excitation of the 3p-subshell,” Proc. R. Soc. London Sect. A 357, 77–102 (1977).
[Crossref]

M. W. D. Mansfield, “The Ca i absorption spectrum in the extreme ultraviolet: excitation of the 2p-subshell,” Proc. R. Soc. London Sect. A 348, 143–151 (1976).
[Crossref]

McIlrath, T. J.

T. J. McIlrath and J. L. Carlsten, “Production of large numbers of atoms in a selected excited state by laser optical pumping: calcium,” J. Phys. B 6, 697–708 (1973).
[Crossref]

Moore, C. E.

Naber, R. H.

Newsom, G. H.

M. W. D. Mansfield and G. H. Newsom, “The Ca absorption spectrum in the vacuum ultraviolet: excitation of the 3p-subshell,” Proc. R. Soc. London Sect. A 357, 77–102 (1977).
[Crossref]

Rosenberg, F. D.

Seaton, M. J.

M. J. Seaton, “Quantum Defect Theory. I. General Formulation,” Proc. Phys. Soc. London 88, 801–814 (1966).
[Crossref]

Tilford, S. G.

Wynne, J. J.

J. A. Armstrong, J. J. Wynne, and P. Esherick, “Bound, odd-parity J= 1 spectra of the alkaline earths: Ca, Sr, and Ba,” J. Opt. Soc. Am. 69, 211–230(1979).
[Crossref]

J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
[Crossref]

Appl. Opt. (1)

J. Opt. Soc. Am. (9)

C. M. Brown and M. L. Ginter, “Absorption spectrum of Mn i between 1305 and 2040 Å,” J. Opt. Soc. Am. 68, 1541–1558 (1978); “Absorption spectrum of Au i between 1300 and 1900 Å,”  68, 243–246 (1978), and references therein.
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Extended identifications of odd energy levels in Si i: Lu-Fano graphical analysis,” J. Opt. Soc. Am. 65, 385–388 (1975).
[Crossref]

U. Feldman, C. M. Brown, G. Doschek, C. E. Moore, and F. D. Rosenberg, “XUV spectrum of C i observed from Skylab during a solar flare,” J. Opt. Soc. Am. 66, 853–859 (1976).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ge i between 1500 and 1900 Å,” J. Opt. Soc. Am. 67, 584–606 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Sn i between 1580 and 2040 Å,” J. Opt. Soc. Am. 67, 607–622 (1977).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Pb i between 1350 and 2041 Å,” J. Opt. Soc. Am. 67, 1240–1251 (1977).
[Crossref]

C. M. Brown and M. L. Ginter, “Absorption spectrum of Ba i between 1770 and 1560 Å,” J. Opt. Soc. Am. 68, 817–825 (1978).
[Crossref]

J. A. Armstrong, J. J. Wynne, and P. Esherick, “Bound, odd-parity J= 1 spectra of the alkaline earths: Ca, Sr, and Ba,” J. Opt. Soc. Am. 69, 211–230(1979).
[Crossref]

C. M. Brown, S. G. Tilford, and M. L. Ginter, “Absorption spectrum of Ca i in the 1580–2090 Å region,” J. Opt. Soc. Am. 63, 1454–1462 (1973).
[Crossref]

J. Phys. B (1)

T. J. McIlrath and J. L. Carlsten, “Production of large numbers of atoms in a selected excited state by laser optical pumping: calcium,” J. Phys. B 6, 697–708 (1973).
[Crossref]

Phys. Rev. A (2)

J. A. Armstrong, P. Esherick, and J. J. Wynne, “Bound even-parity J= 0 and 2 spectra of Ca: a multichannel quantum-defect theory analysis,” Phys. Rev. A 15, 180–196 (1977).
[Crossref]

K. T. Lu and U. Fano, “Graphical analysis of perturbed Rydberg series,” Phys. Rev. A 2, 81–86 (1970).
[Crossref]

Proc. Phys. Soc. London (1)

M. J. Seaton, “Quantum Defect Theory. I. General Formulation,” Proc. Phys. Soc. London 88, 801–814 (1966).
[Crossref]

Proc. R. Soc. London Sect. A (3)

M. W. D. Mansfield and G. H. Newsom, “The Ca absorption spectrum in the vacuum ultraviolet: excitation of the 3p-subshell,” Proc. R. Soc. London Sect. A 357, 77–102 (1977).
[Crossref]

M. W. D. Mansfield, “The Ca i absorption spectrum in the extreme ultraviolet: excitation of the 2p-subshell,” Proc. R. Soc. London Sect. A 348, 143–151 (1976).
[Crossref]

R. W. Ditchburn and R. D. Hudson, “The absorption of light by calcium vapor (2100 to 1080 Å),” Proc. R. Soc. London Sect. A 256, 53–61 (1960).
[Crossref]

Other (2)

C. M. Brown and M. L. Ginter (unpublished).

C. E. Moore, Atomic Energy Levels, I, Natl. Bur. Stand. (U.S.) Circ. No. 467 (U.S. GPO, Washington, D.C., 1949), p. 246.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

FIG. 1
FIG. 1

Densitometer trace of an absorption spectrogram of Ca i in the 1430–1330 Å region. This trace is uncorrected for the variation of intensity of the krypton lamp, which is responsible for the broad peak in optical density between 70 000 and 72 000 cm−1.

FIG. 2
FIG. 2

Densitometer trace and spectrogram for the region near the4p2P°limit. The positions of the and 4 p 2 P 1 / 2 ° and 4 p 2 P 3 / 2 ° limits are indicated by lines labeled 1/2 and 3/2, respectively, while the scale at the top gives the effective quantum number based on the 4 p 2 P 3 / 2 ° ionization limit.

FIG. 3
FIG. 3

Lu-Fano plot for the observed absorption features of Ca i between 1427 Å and the 4 p 2 P 1 / 2 ° ionization threshold, treated in the four-channel approximation.

FIG. 4
FIG. 4

Data from Fig. 3 plotted modulo 1 in both n 1 * and n 2 *. The symbols represent approximate line strengths (see text) relative to other nearby transitions with ● > ◯ > • > ○ > ◦. An × indicates a predicted transition associated with D = 0 (see test).

Tables (1)

Tables Icon

TABLE I Absorption spectrum of Ca i in the 1430–1399 Å region.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

n 1 * = G ( n 2 * ) = n 2 * ( 1 n 1 * 2 Δ ) 1 / 2 ,
F ( n 1 * , n 2 * ) = det | U i α sin π ( n i * μ α ) | = 0.