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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Spectral characterization of Dy3+ ions doped phosphate glasses for yellow laser applications
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Spectral characterization of Dy3+ ions doped phosphate glasses for yellow laser applications

机译：DY3 +离子掺杂黄色激光应用磷脂玻璃的光谱表征

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摘要

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.
机译：采用熔体骤冷法制备了Dy3+离子掺杂磷酸盐玻璃。通过XRD、FT-IR、光吸收、光致发光激发、光致发光（PL）和光致发光衰减等研究来了解其光谱性质。根据吸收光谱特征计算的Judd-Ofelt（J-O）参数被用来计算磷酸盐玻璃中Dy3+离子的各种辐射参数。在387nm的激发下，在荧光光谱中观察到两条强烈的谱带，分别位于蓝色和黄色区域。发射光谱表明含1 mol%Dy3+离子的磷酸盐玻璃的浓度猝灭，这可能归因于Dy3+离子之间的偶极-偶极相互作用（Dexter理论）。这些PL光谱特征还用于估算Y/B强度比、CIE色度坐标，以了解制备的玻璃在激光器中的用途。评估了受激发射截面、分支比、量子效率和CIE颜色坐标，以验证制备的玻璃适用于黄色激光应用。

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