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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 >Optical properties of Er3+-doped alkali fluorophosphate glasses
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Optical properties of Er3+-doped alkali fluorophosphate glasses

机译：掺Er3 +的碱性氟磷酸盐玻璃的光学性能

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摘要

A systematic study of the optical absorption and luminescence spectra of Er3+-doped alkali fluorophosphate glasses (RTFP) 50(NaPO3)–10TeO2–20AlF3–19RF–1Er2O3 (R = Li, Na and K) has been performed. The phenomenological Judd–Ofelt intensity parameters have been determined from the spectral intensities of the absorption bands in order to calculate the radiative transition probabilities, radiative lifetimes and branching ratios for various excited luminescent states. Using the visible and near infrared emission spectra, full width at half maximum (FWHM), emission cross-sections (σe) and figure of merit (FOM) were evaluated and compared with other hosts. Especially, the numerical values of these parameters indicate that the emission transition 4I13/2 → 4I15/2 transition at 1.534 μm in Er3+-doped fluorophosphate glasses may be highly useful in optical communication. The decay characteristic of 4S3/2 excited level has also been recorded and analyzed. The calculated and experimental lifetimes were compared in terms of quantum efficiencies and multiphonon relaxation rates.
机译：对掺Er3 +的碱性氟磷酸盐玻璃（RTFP）50（NaPO3）–10TeO2–20AlF3–19RF–1Er2O3（R = Li，Na和K）的光吸收和发光光谱进行了系统研究。现象学上的贾德-奥费尔特强度参数是根据吸收带的光谱强度确定的，以便计算各种激发发光态的辐射跃迁几率，辐射寿命和支化比。使用可见光和近红外发射光谱，评估半峰全宽（FWHM），发射截面（σe）和品质因数（FOM）并与其他宿主进行比较。特别地，这些参数的数值表明在掺Er3 +的氟磷酸盐玻璃中在1.534μm处的发射跃迁4I13 / 2→4I15 / 2跃迁可能是非常有用的。还记录并分析了4S3 / 2激发能级的衰减特性。根据量子效率和多声子弛豫率比较了计算寿命和实验寿命。

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