Numéro
J. Phys. IV France
Volume 01, Numéro C7, Décembre 1991
2nd International Conference
Laser M2P
Page(s) C7-403 - C7-406
DOI http://dx.doi.org/10.1051/jp4:19917103
2nd International Conference
Laser M2P

J. Phys. IV France 01 (1991) C7-403-C7-406

DOI: 10.1051/jp4:19917103

SITE SELECTIVE SPECTROSCOPY OF Nd3+ AND Cr3+ SITES IN LiNbO3 CRYSTALS CODOPED WITH Mg2+ IONS

J. GARCÍA SOLÉ1, 2, A. MONTEIL1, G . BOULON1, E. CAMARILLO3, 4, J.O. TOCHO3, 5, I. VERGARA3 and F. JAQUE3

1  U.A. C.N.R.S. 442, Université Claude Bernard, Lyon I, F-69622 Villeurbanne, France
2  Departamento de Física Aplicada C-IV, Universidad Autónoma de Madrid, Cantoblanco, SP-28049 Madrid, Spain
3  Dpto. Física Aplicada C-IV, Universidad Autónoma de Madrid, Cantoblanco, SP-28049 Madrid, Spain
4  Universidad Nacional Autónoma de Mexico, Instituto de Física, P.O . 20364, 01000 México D.F.
5  Centro de Investigaciones Opticas y Departamento de Física, La Plata, Argentina


Abstract
The fluorescence properties of Nd3+ in Nd : MgO : LiNbO3 and Cr3+ in Cr : MgO : LiNbO3 systems have been systematically studied after site selective laser excitation. Three kinds of sites have been detected for the active (Nd3+ or Cr3+) ions. Two sites correspond to the active ion located in Li+ and Nb5+ lattice positions, and also appear in the singly (without MgO) doped systems. Codoping with Mg2+ ions induce the appearance of a new site for the active ion, together with a decreasing in the Li/Nb occupation ratio.



© EDP Sciences 1991