Reactive sintering of coaxial Yb3+:YAG/YAG transparent ceramics

被引：0
|
作者：
Parkhomenko, S. V. [1 ]
Matvienko, O. O. [1 ]
Vorona, I. O. [1 ]
Doroshenko, A. G. [1 ]
Kryzhanovska, O. S. [1 ]
Safronova, N. A. [1 ]
Mateychenko, P. V. [1 ]
Tolmachev, A. V. [1 ]
Kuncser, A. [2 ]
Croitoru, G. [3 ]
Yavetskiy, R. P. [1 ]
机构：
[1] NAS Ukraine, Inst Single Crystals, 60 Nauky Ave, UA-61072 Kharkiv, Ukraine
[2] Natl Inst Mat Phys, 405A Atomistilor Str, Bucharest 077125, Magurele, Romania
[3] Natl Inst Laser Plasma & Radiat Phys, ECS Lab, POB MG-36, Magurele 077125, Bucharest, Romania
来源：
OPTICAL MATERIALS | 2024年 / 156卷
关键词：
Yb3+:YAG; Composite ceramics; Reactive sintering; Microstructure; Optical properties; Laser efficiency; LASER BEHAVIOR; COMPOSITE; STATE; DIFFUSION; INTERFACE; RE;
D O I：
10.1016/j.optmat.2024.115970
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
15 at.% Yb3+:YAG/YAG transparent composite ceramics with a coaxial geometry were synthesized by a ceramic forming method combined with the reactive sintering at 1800 degrees C. Densification peculiarities, microstructure, optical properties, and laser characteristics of composite ceramic samples were studied. Powder mixtures of Yb3+:YAG and YAG stoichiometric compositions demonstrate almost the same densification enabling uniform shrinkage of composite without differential sintering. It was shown that in-line optical transmittance of 15 at.% Yb3+:YAG/YAG composite ceramics reaches 80 % at 1030 nm wavelength. The effective diffusion coefficient of Yb3+ ions in garnet structure has been determined. Efficient laser emission was generated from Yb3+:YAG/YAG composite ceramics with a slope efficiency of eta(sa) = 0.30.
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页数：6
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