Comparison Between Standard and Modified Judd-Ofelt Theories in a Pr^{3+}-Doped Fluoride Glass

• Authors: P. Goldner , F. Auzel
• Languages of publication: EN

Abstracts

EN

A method which takes into account normalized oscillator strengths is detailed for the calculation of parameters in Judd-Ofelt theory (B.R. Judd, Phys. Rev. 127, 750 (1962), G.S. Ofelt, J. Chem. Phys. 37, 511 (1962)). In the case of a Pr^{3+} -doped fluorozirconate glass, the Judd-Ofelt parameters obtained in this way do not depend strongly on the transitions included in the fit. Particularly, it is no longer necessary to exclude the ^{3}H_{4} → ^{3}P_{2} transition from the analysis. Three modified theories (F. Auzel, S. Hubert, P. Delamoye, J. Lumin. 26, 251 (1982), A.A. Kornienko, A.A. Kaminskii, E.B. Dunina, Phys. Status Solidi B 157, 267 (1990)) are also considered but do not improve the calculated intensities when the energy of the 5d level is set to its experimentally determined value. Finally, in connection with 1.3 μ amplification, the 1.3 μ reabsorption (^{1}G_{4} → ^{1}D_{2}) oscillator strength is computed from the various models as well as the 1.3 μ emission branching ratio (^{1}G_{4} → ^{3}H_{5}/^{1}G_{4} → ^{3}H_{6}). The best agreement with experiment is obtained with the standard Judd-Ofelt theory.

Keywords

EN

42.50.Hz; 42.62.Fi; 42.70.Hj; 78.50.Ec

Discipline

• 42.70.Hj: Laser materials
• 42.50.Hz: Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift(for multiphoton ionization and excitation of atoms and molecules, see 32.80.Rm, and 33.80.Rv, respectively)
• 42.62.Fi: Laser spectroscopy

• Journal: Acta Physica Polonica A
• Year: 1996
• Volume: 90
• Issue: 1
• Pages: 191-196

Dates

published

1996-07

Contributors

author

P. Goldner

• Groupe d'Optique des Terres Rares, France Telecom CNET PAB, Laboratoire de Bagneux, BP 107, 92225 Bagneux, France
• Laboratoire de Physico-Chimie des Matériaux, CNRS UPR211, 1 Pl. A. Briand, 92190 Meudon, France

author

F. Auzel

• Groupe d'Optique des Terres Rares, France Telecom CNET PAB, Laboratoire de Bagneux, BP 107, 92225 Bagneux, France
• Laboratoire de Physico-Chimie des Matériaux, CNRS UPR211, 1 Pl. A. Briand, 92190 Meudon, France

Identifiers

DOI

10.12693/APhysPolA.90.191