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Spectroscopy of Nd3+-doped KGd(WO4)2 laser material,grown by the top nucleated floating crystal method

Published online by Cambridge University Press:  15 May 1999

F. Bourgeois*
Affiliation:
Laboratoire de Physico-Chimie des Matériaux Luminescents (UMR CNRS 5620), Université Claude Bernard-Lyon I, 43 boulevard 11 November 1918, 69629 Villeurbanne Cedex, France
A. Brenier
Affiliation:
Laboratoire de Physico-Chimie des Matériaux Luminescents (UMR CNRS 5620), Université Claude Bernard-Lyon I, 43 boulevard 11 November 1918, 69629 Villeurbanne Cedex, France
G. Métrat
Affiliation:
Laboratoire de Physico-Chimie des Matériaux Luminescents (UMR CNRS 5620), Université Claude Bernard-Lyon I, 43 boulevard 11 November 1918, 69629 Villeurbanne Cedex, France
N. Muhlstein
Affiliation:
Laboratoire de Physico-Chimie des Matériaux Luminescents (UMR CNRS 5620), Université Claude Bernard-Lyon I, 43 boulevard 11 November 1918, 69629 Villeurbanne Cedex, France
G. Boulon
Affiliation:
Laboratoire de Physico-Chimie des Matériaux Luminescents (UMR CNRS 5620), Université Claude Bernard-Lyon I, 43 boulevard 11 November 1918, 69629 Villeurbanne Cedex, France
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Abstract

Nd3+-doped KGd(WO4)2 single crystals are investigated as laser mediaand nonlinear Raman shifters. They have been grown by the top nucleated floatingcrystal method. They were Maynly obtained as platelets with two large (010) faces(i.e. perpendicular to the two-fold b'-axis of the monoclinic lattice). Theirspectroscopic properties are given at room and liquid helium temperature:up-conversion fluorescence, absorption from the 4 I 9/2 ground state for an extended Judd-Ofelt parameters analysis, absorption from the 4 F 3/2 excited statenear 1067 nm and Raman spectra have been measured in the direction of the b'-axis intwo orthogonal polarizations.

Keywords

Type
Research Article
Copyright
© EDP Sciences, 1999

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