کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7840698 | 1505868 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical properties of Er3+/Yb3+ co-doped bismuth calcium borate glass system for NIR lasers and fiber amplifiers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
An Er3+/Yb3+ co-doped bismuthate (Bi2O3-B2O3-CaO) glass was prepared by melt quenching method. The samples were analyzed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), absorption and emission spectroscopy. The Judd-Ofelt parameters (Ωλ) were determined from the intensity of the absorption band to calculate the radiation parameters, such as the radiation lifetime (Ïrad), radiation transition probability (Arad) and branching ratio (βJJâ²) of 4I13/2 laser conversion of Er3+ ions. The effective emission bandwidth (ÎλP), stimulated emission cross section (Ïse) and gain bandwidth (Ïse à Îλp) were determined on the emission spectra, and the optimum doping concentration of Er2O3 was 0.5 mol%. The present work indicates that Er3+/Yb3+ co-doped bismuth calcium borate glass can be promising materials for solid state NIR lasers and fiber amplifiers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 194, February 2018, Pages 440-445
Journal: Journal of Luminescence - Volume 194, February 2018, Pages 440-445
نویسندگان
Shangjiu Nian, Yin Zhang, Weijing Cao, Zhenning Wu, Jun Tang, Mingming Li, Nianying Zhou, Yan Shu,