Impact of tellurite-based glass structure on Raman gain

Guillaume Guery (1) , Alexandre Fargues (1) , Thierry Cardinal (1) , Marc Dussauze (2) , Frédéric Adamietz (2) , Vincent Rodriguez (2) , David John Musgraves (3) , Kathleen Richardson (3) , Philippe Thomas (4)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 ISM - Institut des Sciences Moléculaires
3 COMSET - School of Materials Science and Engineering
4 Axe 3 : organisation structurale multiéchelle des matériaux

Raman gain efficiency and structure of tellurite glasses in the TeO2-TaO5/2-ZnO system have been investigated by Raman and IR spectroscopies. It has been found that replacement of TaO5/2 by ZnO does not significantly modify the respective proportion of TeO4, TeO3 and TeO3+1 entities but induces an important decrease of the TeO4 structural units Raman cross section. Change of the glass structure at the middle range length scale is proposed to be at the origin of the large decrease of the Raman cross section of the TeO4 units.

Mots clés: Raman gain efficiency; Tellurite glasses; Raman and IR spectroscopies

Domaines: Matériaux

Guillaume Guery, Alexandre Fargues, Thierry Cardinal, Marc Dussauze, Frédéric Adamietz, et al.. Impact of tellurite-based glass structure on Raman gain. Chemical Physics Letters, 2012, 554, pp.123-127. ⟨10.1016/j.cplett.2012.10.023⟩. ⟨hal-00753693⟩