Journal
JOURNAL OF LUMINESCENCE
Volume 136, Issue -, Pages 221-239Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2012.10.035
Keywords
Judd-Ofelt theory; 4f transition intensities; Intermediate coupling wavefunctions; Lifetimes and branching ratios; Rare-earth spectroscopy
Categories
Funding
- Los Alamos National Laboratory LDRD Program [20120246ER]
- European Union through the European Regional Development Fund (Center of Excellence Mesosystems: Theory and Applications) [TK114]
Ask authors/readers for more resources
The theory on the intensities of 4f -> 4f transitions introduced by B.R. Judd and G.S. Ofelt in 1962 has become a centerpiece in rare-earth optical spectroscopy over the past five decades. Many fundamental studies have since explored the physical origins of the Judd-Ofelt theory and have proposed numerous extensions to the original model. A great number of studies have applied the Judd-Ofelt theory to a wide range of rare-earth-doped materials, many of them with important applications in solid-state lasers, optical amplifiers, phosphors for displays and solid-state lighting, upconversion and quantumcutting materials, and fluorescent markers. This paper takes the view of the experimentalist who is interested in appreciating the basic concepts, implications, assumptions, and limitations of the JuddOfelt theory in order to properly apply it to practical problems. We first present the formalism for calculating the wavefunctions of 4f electronic states in a concise form and then show their application to the calculation and fitting of 4f -> 4f transition intensities. The potential, limitations and pitfalls of the theory are discussed, and a detailed case study of LaCl3:Er3+ is presented. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available