Abstract

Glass samples with formula as Li₂O–BaO–GdF₃–SiO₂:Sm₂O₃ were fabricated by melt quenching method. Their optical, physical and luminescence properties were studied, for their potential applications in photonic device working in visible region. The Sm³⁺ ions and nearby ligands bonding nature were determined from bonding parameters (δ) that in turn were calculated from LGF absorption spectra. Oscillator strength of different absorption bands and Judd–Ofelt (JO) parameters (Ω_λ (λ = 2, 4, 6)) were measured. JO-parameters and refractive index have been used to valuate various radiative properties of Sm³⁺ ions emission transitions in prepared glasses to explore their potential application as visible lasers. Furthermore, the emission was studied by exciting the LGF glass samples with different wavelengths (λ_ex = 275, 402 nm). The orange to red ratios at different wavelengths (λ_ex = 275 nm and X-ray) were evaluated to measure the Sm³⁺-ions local disorder in the glass network. The decreasing trend in experimental decay time (τ_exp) with Sm³⁺-ion concentration increasing was observed due to energy transfer. Best fit for the prepared glass, when studied in the light of Inokuti–Hirayama model was obtained for S = 6 indicating dipole–dipole type of energy transfer. The intense visible (orange) emission, high stimulated emission cross-section (σ_e), branching ratios (β_R), radiative transition probability (A_R), and reasonable quantum efficiency were determined for transition from ⁴G_5/2 to ⁶H_7/2 in glass. This suggests Sm³⁺ doped glass shows potential use for development of devices (laser and photonic) working in visible (orange) region.

中文翻译：

---

用于橙色发射固态器件的Sm 3+掺杂氟硅酸盐玻璃的光谱研究

摘要

通过熔融淬火法制备了分子式为Li ₂ O–BaO–GdF ₃ –SiO ₂：Sm ₂ O _3的玻璃样品。对它们的光学，物理和发光特性进行了研究，以探讨其在可见光区域工作的光子器件的潜在应用。Sm ³⁺离子和附近配体的键合性质由键合参数（δ）确定，而键合参数又由LGF吸收光谱计算得出。不同的吸收带的振子强度和贾德-Ofelt理论（JO）参数（Ω _λ（λ= 2,4，6））进行了测定。JO参数和折射率已用于评估Sm ^3+的各种辐射特性制备的玻璃中的离子发射跃迁，以探索其在可见激光中的潜在应用。此外，通过激发具有不同波长（_λex = 275、402 nm）的LGF玻璃样品来研究发射。评估了不同波长（_λex = 275 nm和X射线）下的橙红比，以测量玻璃网络中Sm ^3+离子的局部无序。由于能量转移，实验衰减时间（_τexp）随Sm ³⁺离子浓度的增加而减小。为获得最佳拟合的制备的玻璃，在Inokuti-平山模型的光进行研究时小号= 6表示偶极-偶极子类型的能量传输。激烈的可见（橙色）发射，高受激发射横截面（σ _ë），分支比（β _{- [R} ），辐射跃迁概率（甲_{- [R} ），以及合理的量子效率进行了测定用于从过渡⁴ ģ _5/2至⁶玻璃中的H _7/2。这表明掺有Sm ^3+的玻璃显示出可用于开发在可见（橙色）区域工作的器件（激光和光子）的潜在用途。