Structural-phase state and lasing of 5-15 at% Yb3+:Y3Al5O12 optical ceramics

被引：20

作者：

Vorona, I. O. ^{[1
]}

Yavetskiy, R. P. ^{[1
]}

Doroshenko, A. G. ^{[1
]}

Parkhomenko, S. V. ^{[1
]}

Baumer, V. N. ^{[1
]}

Tolmachev, A. V. ^{[1
]}

Kosyanov, D. Yu. ^{[2
]}

Vovna, V. I. ^{[2
]}

Kuryavyi, V. G. ^{[3
]}

Greculeasa, M. ^{[4
]}

Gheorghe, L. ^{[4
]}

Hau, S. ^{[4
]}

Gheorghe, C. ^{[4
]}

Croitoru, G. ^{[4
]}

机构：

[1] NAS Ukraine, Inst Single Crystals, 60 Nauky Ave, UA-61001 Kharkov, Ukraine

[2] Far Eastern Fed Univ, 8 Sukhanova St, Vladivostok 690950, Russia

[3] Russian Acad Sci, Far Eastern Branch, Inst Chem, 159 100 Let Vladivostoku Ave, Vladivostok 690022, Russia

[4] Natl Inst Laser Plasma & Radiat Phys, ECS Lab, POB MG-36, Bucharest 077125, Romania

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2017年 / 37卷 / 13期

关键词：

Yb3+:Y3Al5O12; Reactive sintering; Recrystallization; Laser ceramics; Solid-state lasers; RESIDUAL POROSITY; YAG; CRYSTALS; ORIGIN;

D O I：

10.1016/j.jeurceramsoc.2017.05.023

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 degrees 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 (Y1-xYbx)(3)Al5O12 (x = 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 degrees C for 10 h. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：4115 / 4122

页数：8

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