Spectral Analysis for Rare-Earth Ions in Transparent Solids.
Abstract
A model was developed that includes a crystal-field Hamiltonian and the free-ion Hamilton ion for the analysis of the spectra of rare-earth ions in transparent solids. The report discusses phenomenological crystal-field parameters, B(km), obtained by the fitting of the experimental data of a particular ion-host combination, as well as their relationship with the derived crystal field parameters. The latter parameters, the derived Bkm' and factors affecting the Hartree-Fock values of (rk), such as shielding, wave function expansion, etc, are considered in detail. The theory of the transition probabilities of electric and magnetic dipole transitions are presented, as well as magnetic g factors, line strengths, branching ratios, and lifetimes. The entire work leans heavily on the investigations, both theoretical and experimental, performed at Harry Diamond Laboratories (now part of the Army Research Laboratory), and this work is referenced throughout this report. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1995
- Accession Number
- ADA295458
Entities
People
- Clyde A. Morrison
- Donald E. Wortman
Organizations
- United States Army Research Laboratory