Physical and optical properties of magnesium sulfoborate glasses doped Dy3+ ions

The optical properties of alkaline earth borate glasses doped with rare earth are attractive field of research due to many optical applications. We have concentrated on the physical and optical properties of MgO–SO4–B2O3 glass with different concentrations of Dy3+ ions. The samples of glass were prepared using the melting quenching technique. The physical parameter and optical properties of the prepared glass were determined. It was observed that the density of the glass samples increased and the molar volume reduced with respect to Dy3+ ions content. Dy3+: MgO–SO4–B2O3 glass displayed 10 absorption bands with hypersensitive transition around 1265 nm (6H15/6 →6F11/2). Two intense luminescence emissions were observed at 482 nm (4F9/2 →6H15/2: blue) and 573 nm (4F9/2 →6H13/2: yellow) and weak band at 662 nm (4F9/2 →6H11/2: red) with excitation wavelength 380 nm. A strong enhancement in the emission peaks at 573 nm in the yellow region was observed with the 0.07 mol% concentration of dysprosium oxide, which ...