Laser induced fluorescence in Nd3+ : LaCl3. I. — Hyperfine structures

Abstract
The laser induced fluorescence line-narrowing technique has been used to obtain high-resolution spectra of isotopically enriched 143Nd 3+ and 145Nd3+ ions in a LaCl3 host. Nuclear magnetic dipole interactions have been investigated for the 4I9/2 ↔ 2H11/2 and 4I 9/2 ↔ 4G5/2 transitions in two-level and three-level systems