کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5440447 | 1398229 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural-phase state and lasing of 5-15 at% Yb3+:Y3Al5O12 optical ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Yttrium aluminum garnet (Yb3+:Y3Al5O12) laser ceramics doped by 5, 10 and 15 at% of ytterbium ions were obtained by reactive sintering. Optimal sintering temperature range for the formation of highly-dense transparent Yb3+:Y3Al5O12 ceramics under normal recrystallization conditions was found to be T = 1750-1800 °C. The influence of Yb3+ ions on structural-phase state, phase composition, microstructure, optical and luminescent properties of sintered samples was experimentally investigated. It was shown that lattice parameter a of Yb3+:Y3Al5O12 ceramics decreases linearly with increasing of Yb3+ concentration in a good agreement with L. Vegard's rule, that indicates to the formation of (Y1âxYbx)3Al5O12 (Ñ
 = 0.05-0.15) substitutional solid solutions. No concentration quenching of Yb3+ luminescence was observed in Yb3+:Y3Al5O12 within the 5-15 at% doping range. Quasi-CW lasing of Yb3+:Y3Al5O12 ceramics was studied under diode-pumping at 970 nm. A highest slope efficiency of about 50% was obtained for 15 at%-doped Yb3+:Y3Al5O12 ceramics sintered at T = 1800 °C for 10 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 37, Issue 13, October 2017, Pages 4115-4122
Journal: Journal of the European Ceramic Society - Volume 37, Issue 13, October 2017, Pages 4115-4122
نویسندگان
I.O. Vorona, R.P. Yavetskiy, A.G. Doroshenko, S.V. Parkhomenko, V.N. Baumer, A.V. Tolmachev, D.Yu. Kosyanov, V.I. Vovna, V.G. Kuryavyi, M. Greculeasa, L. Gheorghe, S. Hau, C. Gheorghe, G. Croitoru,