Abstract
Er3+ doped zinc phosphate glasses with chemical compositions (60-x) NH4H2PO4 + 20ZnO+10BaF2+10NaF+xRE (where RE=Er2O3, x = 0.1, 0.5, 1.0, 1.5 and 2.0 mol%) have been prepared by melt quenching technique. Amorphous structure was ascertained by XRD analysis. The functional bands have been assigned and clearly elucidated by FT-IR spectral profiles for host glass sample. Judd-Ofelt (J-O) intensity parameters (Ωλ: λ=2, 4, 6) have been obtained from the spectral intensities of different absorption bands of Er3+ ion through optical absorption spectra. NIR photoluminescence spectra exhibited one emission band (4I15/2→4I13/2) of Er3+ ions. These glasses were suggested as suitable hosts for efficient lasing action in NIR region at 1534 nm for Er3+ ion.
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