Author/Authors :
Yang، نويسنده , , Yanmin and Chen، نويسنده , , Baojiu and Wang، نويسنده , , Cheng and Ren، نويسنده , , Guozhong and Meng، نويسنده , , Qingyu and Zhao، نويسنده , , Xiaoxia and Di، نويسنده , , Weihua and Wang، نويسنده , , Xiaojun and Sun، نويسنده , , Jiashi and Cheng، نويسنده , , Lihong and Yu، نويسنده , , Tao and Peng، نويسنده , , Yong، نويسنده ,
Abstract :
Erbium-doped glasses with composition xGeO2–(80 − x)TeO2–10ZnO–10BaO were prepared by melt-quenching technique. The phonon sideband spectra and the optical absorption band edges for the host matrix were confirmed by means of the spectral measurements. Standard Judd–Ofelt calculations have been completed to these glasses. The dependence of up-conversion and infrared emission under 980 nm excitation on the glass composition was studied. The quantum efficiencies for the 4I13/2 → 4I15/2 transition of trivalent erbium in the glasses were estimated.
Keywords :
optical spectroscopy , ABSORPTION , Luminescence , germanates , Tellurites , Rare-earths in glasses , Glasses , Heavy metal oxides
