New line classifications in Ho I based on high-precision hyperfine-structure measurement of low levels

Journal Article · Mon Jan 31 23:00:00 EST 1983 · J. Opt. Soc. Am.; (United States)

DOI:https://doi.org/10.1364/JOSA.73.000151· OSTI ID:6301579

Childs, W J; Cok, D R; Goodman, L S

Doppler-free laser-fluorescence and laser-rf double-resonance studies have been made of the hyperfine structure (hfs) of four strong, previously unclassified visible lines in Ho I; all are shown to connect with low levels. The hfs of the 4f/sup 11/6s/sup 2/ /sup 4/I/sub 11/2,9/2/ levels is measured in detail, allowing evaluation of the dipole (a/sup 01/, a/sup 12/, a/sup 10/) and quadrupole (b/sup 02/,b/sup 11/,b/sup 13/) hfs radial integrals. The results are in close agreement with the ab initio values of Lindgren and Rosen (Case Stud. Atom. Phys. 4, 93--292 (1974). The value found for b/sup 02/ in the 4f/sup 11/6s/sup 2/ configuration is in reasonable agreement with that of Wyart and Camus (Physica 93C, 227-236 (1978)), thereby confirming their finding of a substantial dependence of this parameter on the number of 4f electrons in the core.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6301579
• Journal Information: J. Opt. Soc. Am.; (United States), Journal Name: J. Opt. Soc. Am.; (United States) Vol. 73:2; ISSN JOSAA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
DATA
DOUBLE RESONANCE METHODS
ELEMENTS
EMISSION SPECTROSCOPY
ENERGY LEVELS
EXPERIMENTAL DATA
FLUORESCENCE SPECTROSCOPY
HOLMIUM
HYPERFINE STRUCTURE
INFORMATION
LASER SPECTROSCOPY
METALS
NUMERICAL DATA
RARE EARTHS
SPECTROSCOPY