HYPERFINE-STRUCTURE OF 5I8 -] 5F5 OPTICAL-TRANSITIONS WITHIN THE TRIGONAL CENTER OF CAF2HO3+

Citation
T. Boonyarith et al., HYPERFINE-STRUCTURE OF 5I8 -] 5F5 OPTICAL-TRANSITIONS WITHIN THE TRIGONAL CENTER OF CAF2HO3+, Physical review. B, Condensed matter, 47(22), 1993, pp. 14696-14705
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
47
Issue
22
Year of publication
1993
Pages
14696 - 14705
Database
ISI
SICI code
0163-1829(1993)47:22<14696:HO5-5O>2.0.ZU;2-R
Abstract
The origin of extra hyperfine lines in two optical transitions in the I-5(8) --> F-5(5) region of the trigonal center of Ho3+ in CaF2 has be en investigated by using optically detected nuclear magnetic resonance and two-laser hole burning. Specific mixing of the excited-state hype rfine wave functions is established by the experimental measurements a nd, in a theoretical analysis, it is shown that such a mixing can aris e from the off-diagonal hyperfine interaction between adjacent E and A states. Normally forbidden transitions gain intensity from the mixing and lead to the appearance of the extra hyperfine lines in the optica l spectra. The strengths of the quadrupole, hyperfine, and off-diagona l hyperfine interaction in the ground and excited states are obtained in the analysis.