RESEARCH ON RARE EARTH FLUORIDE MATERIALS.
Abstract
The work reported is directed toward the selection of those high quality rare earth fluoride materials which indicate the most promising host and dopant combinations, with optimum dopant concentrations, for laser applications. Rare earth materials purified by ion exchange indicated a significant improvement in crystal quality. Single crystals of LaF(3) doped with Tb(3+), Tm(3+), Yb(3+), and Ce(3+), in addition to two new hosts - DyF3 and CeF3, were grown for spectroscopic evaluation. DyF3 will be further investigated as a host sensitizer for Pr(3+). Samples of CeF3:Nd(3+) were prepared for laser testing. Crystals of Er(3+) and Er(3+)-Ce(3+)-doped LaF3 were prepared for further study of the quenching of Er(3+) by Ce(3+); this quenching may be accounted for by ion pair interaction. Theoretical considerations of cross relaxation in double-doped systems are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 1965
- Accession Number
- AD0622338
Entities
People
- A. G. Hastings
- C. K. Asawa
- D. P. Devor
- Michael Robinson
- O. M. Stafsudd
Organizations
- HRL Laboratories