Abstract

The discovery of two new germanium lines at λ 2467.368 A and λ 2416.505 A led to the recognition of the missing 4s4p^{3 5}S₂° the S₂° term of Ge i. It is situated 41 926.726 cm⁻¹ above the ground level 4s4p^{2 3}P₀ and the lines mentioned above are the combinations ν=4s²4p^{2 3}P_2,1,–4s4p^{3 5}S₂°, respectively.

© 1957 Optical Society of America

Preliminary Term Analysis of Am i and Am ii Spectra*

Mark Fred and Frank S. Tomkins
J. Opt. Soc. Am. 47(12) 1076-1087 (1957)

Secondary and Tertiary Interferometric Wavelength Standards in the 1.5–2.5 μ Region*

D. H. Rank, A. H. Guenther, J. N. Shearer, and T. A. Wiggins
J. Opt. Soc. Am. 47(2) 144-148 (1957)

Absorption, Fluorescence, and Magnetic Properties of Gadolinium Chloride (GdCl₃·6H₂O)†

G. H. Dieke and L. Leopold
J. Opt. Soc. Am. 47(10) 944-954 (1957)

Arc Spectrum of Germanium*†

Kenneth L. Andrew and K. W. Meissner
J. Opt. Soc. Am. 49(2) 146-161 (1959)

Infrared Refractive Indexes of Silicon Germanium and Modified Selenium Glass*

Calvin D. Salzberg and John J. Villa
J. Opt. Soc. Am. 47(3) 244-246 (1957)