Abstract

The high-resolution absorption spectrum of Ge i is reported between 1500 and 1900 Å. Transitions have been observed from the 4p2 3P and 1D terms to levels with J3 associated with 4pns, 4pnd, and 4png configurations. Levels with n values as high as 70 have been determined. Numerous perturbations among Rydberg levels have been analyzed by the Lu-Fano graphical method. A total of 989 spectral lines and 549 energy levels are reported, most of which are new. Ionization energies of 63713.24 ± 0.10 cm−1 and 65480.60 ± 0.10 cm−1 have been determined for the ²P1/2° and ²P3/2° limits, respectively. Eigen quantum defects, transformation matrix elements, and approximate dipole parameters from multichannel quantum defect theory are presented.

© 1977 Optical Society of America

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