Broadband near-infrared emission in barium gallo-germanate glasses co-doped with bismuth, chromium and erbium ions

Abstract

This work presents barium gallo-germanate glasses co-doped with Bi⁺/Er³⁺ and Cr³⁺/Er³⁺ ions for NIR luminescence. The addition of Al₂O₃ content in the glass matrix made it possible to obtain luminescence corresponding to the ³P₁→³P₀ transition of Bi⁺ ions. Co-doping with the Bi⁺/Er³⁺ system resulted in a broad luminescence spectrum of 1.0-1.6 µm and Cr³⁺/Er³⁺ co-doping in selected glass matrix resulted in luminescence in 0.9-1.6 µm band. However, the luminescence of the Cr³⁺ ions is much lower than that of Er³⁺ ions.

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References

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