Structural and Luminescence Properties in Dy 3+ Doped Antimony- Strontium-Magnesium-Oxyfluroborate Glasses

Abstract

A series of glasses by melting quenching method fabricated for spectroscopicinvestigations of Dysprosium (Dy3+ ) particle ions deposited on Antimony (Sb) -Magnesium (Mg) - Strontium (Sr) Oxyfluoroborate (BSbMgfSr) glasses. Thestructural and optical characterizations such as XRD, UV-VIS-NIR absorptionspectroscopy, photoluminescence (PL) (excitation and emission) were accomplishedto study the properties of prepared glasses. The transitions from lowest energy stateto an excited state in RE 3+ ions were identified using optical UV-NIR absorptionspectra. By the use of Judd-Ofelt theory the J-O intensity parameters Ω λ (λ = 2, 4, 6)have been evaluated utilizing the absorption spectra with the determination ofexperimental (f exp ) and calculated (f cal ) oscillator strengths. The emission of light fromglass system was concluded through PL spectra (Excitation and emission) forDy3+ ion. The radiative properties resembling radiative transition probability (AR),radiative-lifetime (τR), and branching-ratio (β) of the glasses have also estimated.Stimulated emission cross-section (σse) of the glasses also calculated for the feasibilityof lasing applications. Experimental lifetime (τ exp ) of the decay curves of theBSbMgfSrD glasses were also calculated upon excitation by suitable wavelengths ofall various concentrations of the RE 3+ ions