Intrinsic Studies of Materials.
Abstract
The primary effort of this contract has been directed largely to an increased understanding of cooperative phenomena observed to occur between impurity (dopant) ions in ionic crystals. The phenomena observed were (a) ion pair absorption in LaCl3 by Ho(3+) + Nd(3+), by Ho(3+) + Pr(3+), and by Pr(3+) + Nd(3+), in which case one photon is absorbed by two ions; (b) satellite structure in which case the perturbation caused by the mutual interaction of neighboring ions produces a shift and splitting of the energy levels relative to the single Ho(3+) ion levels; (c) multiple ion relaxation processes in Ho(3+) doped LaCl3, in which case the excitation energy of a single ion is shared (nonradiatively) with one or more ions in the decay process. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0719717
Entities
People
- John F. Porter Jr.
Organizations
- University of Alabama in Huntsville