Enhanced Upconversion Luminescence and Physical Characteristics of Ho³⁺-Doped Tungsten Tellurite Glasses for Photonic Applications
Holmium (Ho³⁺)-doped tungsten tellurite glasses with the composition (70−x)TeO₂–10Na₂O–20WO₃–xHo₂O₃ (x = 0.5–1.5 mol%) were successfully synthesized using the conventional melt-quenching technique to investigate their suitability for visible upconversion and photonic applications. X-ray diffraction analysis confirmed t...