Antimony oxide based glasses, novel laser materials

作者：Ouannes Karima; Lebbou Kheirreddine^*; Walsh Brian M; Poulain Marcel; Alombert Goget Guillaume; Guyot Yannick

来源：Optical Materials, 2017, 65: 8-14.

DOI：10.1016/j.optmat.2016.11.017

• Antimony oxide glasses
• Erbium ions
• Judd-Ofelt analysis
• Stimulated emission cross-sections
• Laser glasses

Glasses based on Sb203 make one of the major classes of heavy metal oxide glasses. This paper concerns two antimonite glasses, 88Sb(2)O(3)-10Na(2)O-28i(2)O(3) (SNB2) and 60Sb(2)O(3)-20WO(3)-19Na(2)O-18i(2)O(3) (SWNB1), doped with 0.25 mol% Er203. Bulk samples have been prepared and their absorption and fluorescence spectra have been recorded. Differential scanning calorimeter (DSC) measurements emphasize a thermal stability range Delta T > 100 degrees C that expresses a good stability against devitrification. Both FTIR and Raman spectra provide information on the structural organization of the glasses. The maximum phonon energies are 700 cm (-1) and 920 cm (-1) for SNB2 and SWNB1 glasses, respectively. The spectroscopic analysis of the absorption and emission properties of the Era} ions in the SNB2 and SWNB1 glasses has been performed. The Judd-Ofelt theory has been applied to interpret the local environment of the Er3+ ion site and covalency of the Er -0 bond, but also to determine the radiative lifetime (iota r) for 4I(13/2) 4I(15/2) emission transition. The emission cross -sections for the 4I(13/2) * 4I(15/2) transition (1528 nm) were calculated using McCumber and Ffichtbauer-Ladenburg theories. We discuss the potential application of these glasses.

• 出版日期2017-3