TY - JOUR
T1 - The luminescence properties of Dy-doped high silicate glass
AU - Nagli, L.
AU - Bunimovich, D.
AU - Katzir, A.
AU - Gorodetsky, O.
AU - Molev, V.
PY - 1997/9
Y1 - 1997/9
N2 - The visible luminescence of silicate glass (SiO2 (> 70%)-R2O3[B2O3, Al2O3]-RO[ZnO, MgO, CaO, BaO]-R2O[Na2O, K2O]) doped with various concentrations of dysprosium was investigated. The emission, excitation and absorption spectra, as well as kinetic parameters, were measured over a temperature range from 20 to 300 K. The Judd-Ofelt analysis was applied to the data, in order to calculate transition rates and branching ratios for all observed emission bands. Concentration quenching was experimentally observed at a Dy ion concentration higher than 8 × 1019 cm-3 and explained by an analytical model based on the Inokuti-Hirayama theory. The quantum efficiency of visible luminescence and the stimulated emission cross-section at 570 nm were (85 ± 50% and (3.4 ± 0.4) × 10-21 cm2, respectively.
AB - The visible luminescence of silicate glass (SiO2 (> 70%)-R2O3[B2O3, Al2O3]-RO[ZnO, MgO, CaO, BaO]-R2O[Na2O, K2O]) doped with various concentrations of dysprosium was investigated. The emission, excitation and absorption spectra, as well as kinetic parameters, were measured over a temperature range from 20 to 300 K. The Judd-Ofelt analysis was applied to the data, in order to calculate transition rates and branching ratios for all observed emission bands. Concentration quenching was experimentally observed at a Dy ion concentration higher than 8 × 1019 cm-3 and explained by an analytical model based on the Inokuti-Hirayama theory. The quantum efficiency of visible luminescence and the stimulated emission cross-section at 570 nm were (85 ± 50% and (3.4 ± 0.4) × 10-21 cm2, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0031221519&partnerID=8YFLogxK
U2 - 10.1016/S0022-3093(97)00139-7
DO - 10.1016/S0022-3093(97)00139-7
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0031221519
SN - 0022-3093
VL - 217
SP - 208
EP - 214
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 2-3
ER -