NIST logo
*
Bookmark and Share

Spectrum of Platinum - banner

Notes for the Atlas

Wavelengths are given in Å. Wavenumbers are given in cm-1. Wavenumbers above 50000 cm-1 are given in vacuum; wavenumbers below 50000 cm-1 are given in air. (A wavenumber of 50000 cm-1 is a wavelength of 2000 Å.) Energy level designations for the classified lines of Pt I and Pt II correspond to the integer parts of the level energies and are given with the even parity level first. A letter appearing in the CODE column indicates the source of a literature value reported for the wavelength or a note pertaining to the line. A number appearing in the CODE column is the uncertainty of the Pt II wavelength determined from the optimized Pt II energy levels (Ritz wavelength) in units of 0.0001 Å.

The following protocols were used in substituting literature values for our measured wavelengths. For each spectrum the various literature sources are listed in order of preference. For all doubly-classified lines our experimental wavelength is given.

Pt I
  1. Ritz wavelength from Table 4 of Engleman, Jr., R., J. Opt. Soc. Am. B 2, 1934 (1985).
  2. Measured wavelength from Table 1 of Engleman, Jr., R., J. Opt. Soc. Am. B 2, 1934 (1985).

Pt II
  1. Wavelength calculated from the optimized level values given by Reader, J., Acquista, N., Sansonetti, C. J., and Engleman, Jr., R., J. Opt. Soc. Am. B 5, 2106 (1988) except where the energy or J value of one of the combining levels was changed by Blaise, J. and Wyart, J.-F., J. Res. Natl. Inst. Stand. Technol. (U.S.) 97, 217 (1992).

Ne I
  1. Palmer, B. A. and Engleman, Jr., R., Los Alamos National Laboratory Rep. 9615, National Technical Information Service, Springfield, VA (1983) except for a few lines that may be blended with lines of thorium.
  2. Kaufman, V. and Edlén, B., J. Phys. Chem. Ref. Data 3, 825 (1974).
  3. Burns, K., Adams, K., and Longwell, J., J. Opt. Soc. Am. 40, 6 (1950).

Ne II
  1. Palmer, B. A. and Engleman, Jr., R., Los Alamos National Laboratory Rep. 9615, National Technical Information Service, Springfield, VA (1983) except for a few lines that may be blended with lines of thorium.
  2. Ritz wavelength from Persson, W., Phys. Scr. 3, 133 (1971).

Fe I
  1. Learner, R. C. M. and Thorne, A. P., J. Opt. Soc. Am. B 5, 2045 (1988).
  2. O'Brian, T. R., Wickliffe, M. E., Lawler, J. E., Whaling, W., and Brault, J. W., J. Opt. Soc. Am B 8, 1185 (1991).
  3. Crosswhite, H.M., J. Res. Natl. Bur. Stand. 79A, 17 (1975).


Line character descriptors (appear to right of intensity):
C - Complex
D - Double; central position of two close lines not resolved on the measuring comparator
H - Hazy
L - Asymmetric, tail toward longer wavelengths
P - Perturbed by close line
S - Asymmetric, tail toward shorter wavelengths
U - Unresolved from close line; shoulder on stronger line
W - Wide

CODES:
  1. Doubly classified line. The wavelength is the present experimental value.
  2. Kaufman, V. and Edlén, B., J. Phys. Chem. Ref. Data 3, 825 (1974). Uncertainty is less than 0.002 Å.
  3. Value determined from optimized Ne II level values; Persson, W., Phys. Scr. 3, 133 (1971). For lines below 2000 Å the uncertainty in wavelength corresponds to a wavenumber uncertainty of about 0.03 cm-1, which is 0.0004 Å at 1200 Å and 0.001 Å at 2000 Å. The uncertainty for lines above 2000 Å appears to be about 0.002 Å.
  4. Value determined from optimized Pt I level values; Engleman, Jr., R., J. Opt. Soc. Am. B 2, 1934 (1985). The wavelength uncertainty is 0.0005 Å.
  5. Engleman, Jr., R., J. Opt. Soc. Am. B 2, 1934 (1985). The wavelength uncertainty corresponds to a wavenumber uncertainty of 0.01 cm-1, which is 0.0005 Å at 2250 Å and 0.0017 Å at 4095 Å.
  6. Value determined from optimized Al I level values; Eriksson, K. B. S., and Isberg, H. B. S., Ark. Fys. 23, 527 (1963). Uncertainty is less than 0.002 Å.
  7. Palmer, B. A. and Engleman, Jr., R., Los Alamos National Laboratory Rep. 9615, National Technical Information Service, Springfield, VA (1983). The wavelength uncertainty is 0.0001 Å.
  8. Measured component of the hyperfine pattern of a Pt I line.
  9. Burns, K., Adams, K., and Longwell, J., J. Opt. Soc. Am. 40, 6 (1950). The wavelength uncertainty is 0.0004 Å.
  10. Measured components of the incomplete hyperfine pattern of the Pt II line 36484 - 61190.
  11. Newly identified Pt II line. Blaise, J. and Wyart, J.-F., J. Res. Natl. Inst. Stand. Technol. (U.S.) 97, 217 (1992). For photographically measured lines the wavelength uncertainty is ± 0.002 Å. For lines found only in the photoelectric scans (two decimal digits) the uncertainty is ± 0.01 Å below 2030 Å and ± 0.02 Å above 2030 Å.
  12. Persson, W., Wahlström, C.-G., Jönsson, L. and DiRocco, H. O., Phys. Rev. A 43, 4791 (1991). The wavelength is the experimental value from the present work.
  13. Probably blended with a grating ghost; the intensity may be affected.
  14. Newly identified Pt I line. J. Blaise, private communication (1990). For photographically measured lines the wavelength uncertainty is ± 0.002 Å. For lines found only in the photoelectric scans the uncertainty is ± 0.01 Å below 2030 Å and ± 0.02 Å above 2030 Å.
  15. Note not utilized.
  16. Pt II line for which a Ritz wavelength was given in Reader, J., Acquista, N., Sansonetti, C. J., and Sansonetti, J. E., Ap. J. Suppl. 72, 831 (1990). The experimental value is given here because the energy or J value of a combining level was changed in the analysis of Blaise, J. and Wyart, J.-F., J. Res. Natl. Inst. Stand. Technol. (U.S.) 97, 217 (1992).
  17. Learner, R. C. M. and Thorne, A. P., J. Opt. Soc. Am. B 5, 2045 (1988).
  18. O'Brian, T. R., Wickliffe, M. E., Lawler, J. E., Whaling, W., and Brault, J. W., J. Opt. Soc. Am B 8, 1185 (1991). Some additional measured wavelengths not included in this reference were communicated privately by the authors.
  19. Crosswhite, H. M., J. Res. Natl. Bur. Stand. 79A, 17 (1975).
  20. Wagman, N. E., U. Pitt. Bull. 34, 1 (1937).

contents