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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 70, Iss. 4 — Apr. 1, 1980
  • pp: 423–429

Absorption spectrum of Cu I between 1570 Å and 2500 Å

M. S. Longmire, C. M. Brown, and M. L. Ginter  »View Author Affiliations

JOSA, Vol. 70, Issue 4, pp. 423-429 (1980)

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The high-dispersion absorption spectrum of Cu I is reported for the 1570–2500 Å region. Observations include the electric dipole allowed transitions 3d104s2S -3d10np2Pº (n = 5-57), 3d94s22D -3d10np2Pº (n = 6-17) and 3d94s22D -3d10nƒ2Fº (n = 5,8), the electric quadrupole allowed transitions 3d104s2S -3d10nd2D (n = 4-8), and the forbidden transitions 3d104s2S -3 d10ns2S (n = 20-41). A number of transitions from 3d104s2S and 3d94s22D to levels associated with excited terms previously designated w, x, y, and z are also reported. An improved ionization potential for Cu I is 62 317.44 ± 0.10 cm-1.

© 1980 Optical Society of America

M. S. Longmire, C. M. Brown, and M. L. Ginter, "Absorption spectrum of Cu I between 1570 Å and 2500 Å," J. Opt. Soc. Am. 70, 423-429 (1980)

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  1. A. G. Shenstone, "The first spectrum of copper (Cu I)," Phil. Trans. R. Soc. London Ser. A 241, 297–322 (1948).
  2. G. Tondello, "Absorption spectrum of Cu I in the vacuum ultraviolet," J. Opt. Soc. Am. 63, 346–352 (1973).
  3. C. E. Moore, Atomic Energy Levels, Vol. II, Natl. Bur. Std., U.S. Circ. No. 467 (U.S. Government Printing Office, Washington, D.C., 1962), p. 112.
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  8. C. M. Brown and M. L. Ginter, "Absorption spectrum of Au I between 1300 and 1900 Å," J. Opt. Soc. Am. 68, 243–246 (1978).
  9. C. M. Brown, and M. L. Ginter, "The absorption spectrum of CuH in the 2350 Å to 1890 Å region," J. Mol. Spectrosc. 80, 145–157 (1980).
  10. In estimating the intensities, an effort was made to maintain a consistent scale over the wide ranges of wavelength, temperature, pressure, exposure time, and development time employed in this work. However, corrections for these variables were largely subjective. The intensity of a line was judged relative to the intensities of nearby lines. Consequently, intensities of lines whose wave-lengths differ by more than ~50 Å are not necessarily comparable. Finally, the intensity scales for sharp lines and diffuse lines are not necessarily related.
  11. R. H. Garstang, "Forbidden Transitions," in Atomic and Molecular Processes, edited by D. R. Bates (Academic, New York, 1962), pp. 3–5.
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  13. F. S. Tompkins (private communication, 1979).
  14. C. M. Brown, S. G. Tilford, and M. L. Ginter, "Absorption spectrum of Zn I and Cd I in the 1300–1750 Å region," J. Opt. Soc. Am. 65, 1404–1409 (1975).

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