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Synthesis of dehydroxylated Nd-doped phosphate and oxynitride phosphate glasses

AuthorsMuñoz, Francisco ; Jiménez Riobóo, R. J. ; Balda, Rolindes
Issue Date10-Jun-2019
CitationICG 2019
AbstractThe production of Nd-doped phosphate laser glasses requires high chemical and optical homogeneity and absorption coefficients of hydroxyl ions lower than 5 cm-1 to avoid quenching of the Nd3+ luminescence. Current dehydroxylation methods consist in melting the glasses using a carrier gas, such as O2, bubbling throughout. In a first study on the synthesis of Nd-doped oxynitride phosphate glasses, we demonstrated that an additional remelting step under reducing N2 flow using a graphite crucible helped obtaining the glasses with higher Nd3+ luminescence lifetime with respect to the original nitrided glasses. Then, the same methodology has been evaluated in the oxide phosphate glasses with composition 15Na2O15K2O-20BaO-50P2O5 (mol %), that showed to give rise to glasses with high optical homogeneity, very low OH absorption coefficients and an important increase in the luminescence lifetime.
DescriptionTrabajo presentado en el 25th International Congresson Glass (ICG 2019), celebrado en Boston (Estados Unidos), del 9 al 14 de junio de 2019
Publisher version (URL)https://ceramics.org/wp-content/uploads/2018/09/ICG19_Abstracts_0520.pdf
Appears in Collections:(CFM) Comunicaciones congresos
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