| Numéro |
J. Phys. Colloques
Volume 48, Numéro C7, Décembre 1987
1st International Laser M2P Conference
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|---|---|---|
| Page(s) | C7-451 - C7-454 | |
| DOI | https://doi.org/10.1051/jphyscol:19877107 | |
1st International Laser M2P Conference
J. Phys. Colloques 48 (1987) C7-451-C7-454
DOI: 10.1051/jphyscol:19877107
1 CNET, 196, Avenue Henri Ravera, F-92220 Bagneux, France
2 Present address : LCR 065, Domaine de Corbeville, BP 10, F-91401 Orsay Cedex, France
J. Phys. Colloques 48 (1987) C7-451-C7-454
DOI: 10.1051/jphyscol:19877107
MATERIALS FOR IR TUNABLE LASER APPLICATIONS AND NON RADIATIVE DECAY PROCESSES
F. AUZEL1 and J.M. BRETEAU21 CNET, 196, Avenue Henri Ravera, F-92220 Bagneux, France
2 Present address : LCR 065, Domaine de Corbeville, BP 10, F-91401 Orsay Cedex, France
Abstract
The optical spectroscopy of the new material for IR tunable laser applications MgAl2O4 : Ni2+ is presented. A comparison with well-known fluoride materials is made for IR fluorescent lifetimes and quantum efficiencies. For Ni2+ and Co2+ doped fluorides, limitations of concentrations in doping ions are established. Multiphonon processes are studied with a single frequency model and a good agreement is found. It is shown that the "effective phonon frequency" is closer to mean frequency of the density of states curves than to their maximum and the electron-phonon coupling factors appears to vary with doping concentration.