Dy³⁺ ions doped phosphate glasses were prepared using sudden melt quench method. The studies like XRD, FT-IR, optical absorption, photoluminescence excitation, photoluminescence (PL), and PL decay were conducted to understand the spectroscopic properties. The Judd-Ofelt (J-O) parameters evaluated from absorption spectral features were employed to evaluate various radiative parameters of Dy³⁺ ions in phosphate glasses. Two intense bands were observed in PL spectra, in blue and yellow regions under 387 nm excitation. The emission spectra indicate concentration quenching for phosphate glass with 1 mol% of Dy³⁺ ions, which may be ascribed to dipole-dipole interactions between Dy³⁺ ions (Dexter theory). These PL spectral features were also used to estimate Y/B intensity ratio, CIE-chromaticity coordinates to understand the utility of prepared glasses in Lasers. The stimulated emission cross-sections, branching ratios, quantum efficiencies and CIE-color coordinates evaluated to validate the suitability of the prepared glasses for yellow laser applications.

采用突然熔融淬火法制备了Dy ³⁺离子掺杂的磷酸盐玻璃。进行了XRD，FT-IR，光吸收，光致发光激发，光致发光（PL）和PL衰减等研究，以了解光谱性质。根据吸收光谱特征评估的Judd-Ofelt（JO）参数用于评估磷酸盐玻璃中Dy ³⁺离子的各种辐射参数。在PL光谱中，在387 nm激发下的蓝色和黄色区域中观察到两个强带。发射光谱表明对含1 mol％Dy ³⁺离子的磷酸盐玻璃进行浓度淬灭，这可能归因于Dy ³⁺之间的偶极-偶极相互作用离子（Dexter理论）。这些PL光谱特征还用于估计Y / B强度比，CIE色度坐标，以了解所制备的眼镜在激光器中的用途。评估受激发射的横截面，分支比，量子效率和CIE颜色坐标，以验证所制备的玻璃在黄色激光应用中的适用性。