Abstract

Absorption spectra of 0.2% Gd:LaF₃ have been measured for the transitions to ⁶P_7/2, ⁶P_5/2, and all ⁶I groups. A crystal-field analysis based on presumed hexagonal site symmetry gives B₂⁰ = 106 cm⁻¹, B₄⁰ = 234 cm⁻¹, B₆⁰ = 124 cm⁻¹, and B₆⁶ = 850 cm⁻¹, in the Stevens normalization.

© 1969 Optical Society of America

Energy Levels of Gd³⁺ in Five Hexagonal Crystals*

R. L. Schwiesow and H. M. Crosswhite
J. Opt. Soc. Am. 59(5) 592-602 (1969)

Thermal Shifts in the Energy Levels of LaF₃:Nd³⁺*

S. A. Johnson, H. G. Freie, A. L. Schawlow, and W. M. Yen
J. Opt. Soc. Am. 57(6) 734-737 (1967)

Trigonal Crystal-Field Energy Levels of Sm³⁺ in CaF₂ (Type I)

Norman Rabbiner
J. Opt. Soc. Am. 59(5) 588-591 (1969)

Wavelengths, Energy Levels, and Analysis of Neutral Atomic Chlorine (Cl i)

Leon J. Radziemski and Victor Kaufman
J. Opt. Soc. Am. 59(4) 424-443 (1969)

Departures from the Electrostatic Crystal-Field Model for Gd³⁺ in Six Hexagonal Crystals*

R. L. Schwiesow
J. Opt. Soc. Am. 62(5) 649-653 (1972)