Abstract

We report new high-resolution photoabsorption measurements of the principal and the intercombination series in neutral mercury by use of a 3-m vacuum spectrograph equipped with a 6000-line/mm holographic grating and synchrotron radiation as the background source of the continuum. The perturbations observed in these Rydberg series are parameterized by a three-channel quantum-defect theory. An improved value of the first ionization potential is derived as $84 184.15\pm 0.07$ ${\mathrm{cm}}^{-1}$.

© 1997 Optical Society of America

Analysis of the J = 1 odd-parity spectrum of germanium by the use of multichannel quantum-defect theory

Kiyoshi Ueda
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