Abstract

A detailed examination of a high-resolution Fourier-transform spectrum of a platinum hollow-cathode discharge in the near infrared has yielded one Pt i and four Pt ii parity-forbidden magnetic dipole transitions. Theoretical calculations and analysis of the hyperfine structure are used to confirm these assignments, and applications to astrophysics and lasers are suggested.

© 1988 Optical Society of America

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References

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  1. R. Engleman, “Accurate energy levels for neutral platinum,” J. Opt. Soc. Am. B 2, 1934 (1985).
    [CrossRef]
  2. J. W. Brault, “Rapid scan high-resolution Fourier transform spectrometer for the visible,” J. Opt. Soc. Am. 66, 1081 (1976).
  3. A. G. Shenstone, “The first spark spectrum of platinum,” Philos. Trans. R. Soc. London Ser. A 237, 453 (1938).
    [CrossRef]
  4. S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
    [CrossRef]
  5. P. E. G. Baird, D. N. Stacey, “Isotope shifts and hyperfine structure in the optical spectrum of platinum,” Proc. R. Soc. London Ser. A 341, 399 (1974).
    [CrossRef]
  6. W. M. Fairbank, R. D. Labelle, R. Engleman, R. A. Keller, “Isotope shifts ratios and hyperfine structure of Pt i transitions in a hollow cathode discharge,” submitted to J. Opt. Soc. Am. B.
  7. H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).
  8. G. Muller, R. Winkler, “Eine Hyperfeinstruckturanalyse der Grundkonfigurationen 5d86s2und 5d96s des Pt i-Spektrums,” Z. Phys. A 273, 313 (1975).
    [CrossRef]
  9. R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981).
  10. J. Reader, C. Sansonetti, N. Acquista, R. Engleman, “Accurate energy levels for singly ionized platinum (Pt ii),” J. Opt. Soc. Am. B 5, 2106 (1988).
    [CrossRef]
  11. M. M. Dworetsky, “Identification of Pt ii in the spectra of some peculiar A stars,” Astrophys. J. 156, L101 (1969).
    [CrossRef]
  12. M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
    [CrossRef]
  13. M. M. Dworetsky, A. H. Vaughan, “Wavelength shifts and probable isotopic structure of Pt ii 4046 in mercury stars,” Astrophys. J. 181, 811 (1973).
    [CrossRef]
  14. R. Engleman, B. A. Palmer, S. J. Davis, “Transition probability and collision broadening of the 1.3-μ m transition of atomic iodine,” J. Opt. Soc. Am. 73, 1585 (1983).
    [CrossRef]

1988

1985

1984

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
[CrossRef]

1983

1980

H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).

1976

J. W. Brault, “Rapid scan high-resolution Fourier transform spectrometer for the visible,” J. Opt. Soc. Am. 66, 1081 (1976).

1975

G. Muller, R. Winkler, “Eine Hyperfeinstruckturanalyse der Grundkonfigurationen 5d86s2und 5d96s des Pt i-Spektrums,” Z. Phys. A 273, 313 (1975).
[CrossRef]

1974

P. E. G. Baird, D. N. Stacey, “Isotope shifts and hyperfine structure in the optical spectrum of platinum,” Proc. R. Soc. London Ser. A 341, 399 (1974).
[CrossRef]

1973

M. M. Dworetsky, A. H. Vaughan, “Wavelength shifts and probable isotopic structure of Pt ii 4046 in mercury stars,” Astrophys. J. 181, 811 (1973).
[CrossRef]

1969

M. M. Dworetsky, “Identification of Pt ii in the spectra of some peculiar A stars,” Astrophys. J. 156, L101 (1969).
[CrossRef]

1938

A. G. Shenstone, “The first spark spectrum of platinum,” Philos. Trans. R. Soc. London Ser. A 237, 453 (1938).
[CrossRef]

Acquista, N.

Baird, P. E. G.

P. E. G. Baird, D. N. Stacey, “Isotope shifts and hyperfine structure in the optical spectrum of platinum,” Proc. R. Soc. London Ser. A 341, 399 (1974).
[CrossRef]

Bauche, J.

H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).

Brault, J. W.

J. W. Brault, “Rapid scan high-resolution Fourier transform spectrometer for the visible,” J. Opt. Soc. Am. 66, 1081 (1976).

Buttgenbach, S.

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

Cowan, R. D.

R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981).

Davis, S. J.

Dworetsky, M. M.

M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
[CrossRef]

M. M. Dworetsky, A. H. Vaughan, “Wavelength shifts and probable isotopic structure of Pt ii 4046 in mercury stars,” Astrophys. J. 181, 811 (1973).
[CrossRef]

M. M. Dworetsky, “Identification of Pt ii in the spectra of some peculiar A stars,” Astrophys. J. 156, L101 (1969).
[CrossRef]

Engleman, R.

Fairbank, W. M.

W. M. Fairbank, R. D. Labelle, R. Engleman, R. A. Keller, “Isotope shifts ratios and hyperfine structure of Pt i transitions in a hollow cathode discharge,” submitted to J. Opt. Soc. Am. B.

Glaeser, N.

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

Grethen, H.

H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).

Jacobs, J. M.

M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
[CrossRef]

Keller, R. A.

W. M. Fairbank, R. D. Labelle, R. Engleman, R. A. Keller, “Isotope shifts ratios and hyperfine structure of Pt i transitions in a hollow cathode discharge,” submitted to J. Opt. Soc. Am. B.

Labelle, R. D.

W. M. Fairbank, R. D. Labelle, R. Engleman, R. A. Keller, “Isotope shifts ratios and hyperfine structure of Pt i transitions in a hollow cathode discharge,” submitted to J. Opt. Soc. Am. B.

Muller, G.

G. Muller, R. Winkler, “Eine Hyperfeinstruckturanalyse der Grundkonfigurationen 5d86s2und 5d96s des Pt i-Spektrums,” Z. Phys. A 273, 313 (1975).
[CrossRef]

Palmer, B. A.

Reader, J.

Roski, B.

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

Sansonetti, C.

Shenstone, A. G.

A. G. Shenstone, “The first spark spectrum of platinum,” Philos. Trans. R. Soc. London Ser. A 237, 453 (1938).
[CrossRef]

Stacey, D. N.

P. E. G. Baird, D. N. Stacey, “Isotope shifts and hyperfine structure in the optical spectrum of platinum,” Proc. R. Soc. London Ser. A 341, 399 (1974).
[CrossRef]

Storey, P. J.

M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
[CrossRef]

Traber, F.

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

Vaughan, A. H.

M. M. Dworetsky, A. H. Vaughan, “Wavelength shifts and probable isotopic structure of Pt ii 4046 in mercury stars,” Astrophys. J. 181, 811 (1973).
[CrossRef]

Winkler, R.

H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).

G. Muller, R. Winkler, “Eine Hyperfeinstruckturanalyse der Grundkonfigurationen 5d86s2und 5d96s des Pt i-Spektrums,” Z. Phys. A 273, 313 (1975).
[CrossRef]

Astrophys. J.

M. M. Dworetsky, “Identification of Pt ii in the spectra of some peculiar A stars,” Astrophys. J. 156, L101 (1969).
[CrossRef]

M. M. Dworetsky, A. H. Vaughan, “Wavelength shifts and probable isotopic structure of Pt ii 4046 in mercury stars,” Astrophys. J. 181, 811 (1973).
[CrossRef]

J. Opt. Soc. Am.

R. Engleman, B. A. Palmer, S. J. Davis, “Transition probability and collision broadening of the 1.3-μ m transition of atomic iodine,” J. Opt. Soc. Am. 73, 1585 (1983).
[CrossRef]

J. W. Brault, “Rapid scan high-resolution Fourier transform spectrometer for the visible,” J. Opt. Soc. Am. 66, 1081 (1976).

J. Opt. Soc. Am. B

Philos. Trans. R. Soc. London Ser. A

A. G. Shenstone, “The first spark spectrum of platinum,” Philos. Trans. R. Soc. London Ser. A 237, 453 (1938).
[CrossRef]

Phys. Scr.

M. M. Dworetsky, P. J. Storey, J. M. Jacobs, “The spectrum of Pt ii in chemically peculiar stars,” Phys. Scr. T8, 39 (1984).
[CrossRef]

Physica

H. Grethen, R. Winkler, J. Bauche, “Experimental investigations and parametric analysis of the isotope shift of the levels of the ground configurations 5d86s2and 5d96s in the Pt i spectrum,” Physica98C,222 (1980).

Proc. R. Soc. London Ser. A

P. E. G. Baird, D. N. Stacey, “Isotope shifts and hyperfine structure in the optical spectrum of platinum,” Proc. R. Soc. London Ser. A 341, 399 (1974).
[CrossRef]

Z. Phys. A

S. Buttgenbach, N. Glaeser, B. Roski, F. Traber, “Radio-frequency spectroscopy in the states of 3D3,2of platinum,” Z. Phys. A 317, 237 (1984).
[CrossRef]

G. Muller, R. Winkler, “Eine Hyperfeinstruckturanalyse der Grundkonfigurationen 5d86s2und 5d96s des Pt i-Spektrums,” Z. Phys. A 273, 313 (1975).
[CrossRef]

Other

R. D. Cowan, The Theory of Atomic Structure and Spectra (U. California Press, Berkeley, Calif., 1981).

W. M. Fairbank, R. D. Labelle, R. Engleman, R. A. Keller, “Isotope shifts ratios and hyperfine structure of Pt i transitions in a hollow cathode discharge,” submitted to J. Opt. Soc. Am. B.

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Figures (2)

Fig. 1
Fig. 1

Observed and computed Pt i transition at 6567 cm−1. Filled dots are the observed FTS-spectrum data points. The curve is the computed spectrum. The vertical bars are at the computed positions of the components. The oscillations or ringing near the strong lines are due to insufficient resolution and to the FTS instrumental function.

Fig. 2
Fig. 2

8419-cm−1 transition of Pt ii. Possible hyperfine components are marked next to central peak, with intensities based on a model with zero isotope shift. Other peaks are thought to be instrumental noise or other weak lines.

Tables (4)

Tables Icon

Table 1 Parameters for the Pt i 6567-cm−1 Transition

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Table 2 Calculated and Experimental Energies (cm−1) and Calculated Lifetimes for the Low Even Levels of Pt ia

Tables Icon

Table 3 Calculated and Experimental Energies (cm−1) and Calculated Lifetimes for the Low Even Levels of Pt iia

Tables Icon

Table 4 Calculated and Observed Forbidden Lines of Pt ii

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