Fluoro phosphate glasses with different contents of barium and bismuth (8, 11, 14, 17 and 20 mol %) doped with Nd³⁺ were prepared by melt quenching technique. Importance of these modifier ions on structural transformation were carried out using XRD, FTIR, FT-Raman and ³¹P MAS NMR characterizations. ³¹P MAS NMR spectra revealed that structural modifications due to Bi₂O₃ are more when compared with BaF₂ in this fluoro phosphate glass matrix. Three phenomenological Judd-Ofelt (J-O) parameters Ω_λ (λ = 2, 4, 6) have been derived from the absorption spectra of Nd³⁺ doped barium and bismuth fluoro phosphate glasses. From the Judd-Ofelt parameters, transition probabilities (A), branching ratios (β) of certain transitions and radiative lifetimes of certain excited states of Nd³⁺ are extracted and reported. From the emission spectra, emission cross sections (σ_e), band gains (σ_exΔλ_eff) and optical gain parameters (σ_exτ_R) were reckoned for the observed emission bands in these phosphate glasses. It is observed that barium glass resulted higher laser spectroscopic parameters (σ_e, σ_exΔλ_eff, σ_exτ_R) which are crucial characteristics for exploring promising laser applications. Impact of Ba²⁺ and Bi³⁺ on luminescent properties of Nd³⁺ doped fluoro phosphate glasses has been examined in search of solid sate gain medium for laser emitting NIR light around 1.058 μm for photonic applications.

通过熔融淬火技术制备了掺有Nd ³⁺的钡，铋（8、11、14、17和20 mol％）不同含量的氟磷酸盐玻璃。这些改性剂离子对结构转变的重要性使用XRD，FTIR，FT-Raman和³¹ P MAS NMR表征进行。³¹ P MAS NMR光谱表明，在这种氟磷酸盐玻璃基质中，与BaF ₂相比，Bi ₂ O ₃引起的结构修饰更多。三现象贾德-Ofelt理论（JO）参数Ω _λ（λ= 2,4，6）已经从钕的吸收光谱导出的³⁺掺杂钡和铋的氟磷酸盐玻璃。从Judd-Ofelt参数中提取和报告Nd ^3+的跃迁几率（A），某些跃迁的分支比（β）和某些激发态的辐射寿命。从发射光谱，发射截面（σ _ë），带增益（σ _Ë xΔλ _EFF）和光学增益参数（σ _Ë xτ _{- [R} ）被计入在这些磷酸盐玻璃观察到的发射带。据观察，钡玻璃，导致较高的激光光谱参数（σ _ê，σ _ë xΔλ _EFF，σ _È xτ _ř）是探索有前途的激光应用的关键特性。已经研究了Ba ²⁺和Bi ³⁺对掺杂Nd ^3+的氟磷酸盐玻璃的发光性能的影响，以寻找用于发射光子应用中1.058μm左右的NIR激光的固态增益介质。