Abstract Holmium (Ho3+)-doped fluorophosphate glasses (P2O5–BaF2–CaF2–TiO2–Ho2O3, PCfBfTiH) were fabricated by melt-quenching technique. The glass transition (548 °C) and crystallization (577 °C) temperatures and glass stability factor (161 °C) were obtained from DSC analysis. Judd-Ofelt (JO) intensity parameters (Ω2, Ω4 and Ω6) of PCfBfTiH15 glass were evaluated. Intense green (545 nm) emission was obtained for the 5S2 + 5F4 → 5I8 transition upon excitation of 451 nm. The stimulated emission cross-section (σem) of PCfBfTiH15 glass was found to be as high as 2.01 × 10−20 cm2. Decay curves of the 5S2 + 5F4 → 5I8 transition were analyzed by double exponential function. High lifetime of 11.29 μs for the 5S2 + 5F4 level was obtained. The CIE chromaticity coordinates for the emission spectra were professed that the green emission owing to the 5S2 + 5F4 → 5I8 transition may be useful for laser and display applications at around 545 nm.

中文翻译：

---

用于可见光应用的 Ho3+ 掺杂氟磷酸盐玻璃的光学和光谱特性

摘要 钬 (Ho3+) 掺杂的氟磷酸盐玻璃 (P2O5–BaF2–CaF2–TiO2–Ho2O3, PCfBfTiH) 通过熔体淬火技术制备。玻璃化转变温度 (548 °C) 和结晶温度 (577 °C) 以及玻璃稳定性因子 (161 °C) 由 DSC 分析获得。评估了 PCfBfTiH15 玻璃的 Judd-Ofelt (JO) 强度参数（Ω2、Ω4 和 Ω6）。在 451 nm 激发下，5S2 + 5F4 → 5I8 跃迁获得强烈的绿色 (545 nm) 发射。发现 PCfBfTiH15 玻璃的受激发射截面 (σem) 高达 2.01 × 10−20 cm2。5S2 + 5F4 → 5I8 转变的衰减曲线用双指数函数分析。对于 5S2 + 5F4 级，获得了 11.29 μs 的高寿命。