Fabrication, microstructure and optical properties of large-sized Nd:YAG and composite Yb:YAG transparent ceramic slabs
Fabrication, microstructure and optical properties of large-sized Nd:YAG and composite Yb:YAG transparent ceramic slabs
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大尺寸Nd:YAG和复合Yb:YAG透明陶瓷板的制备、显微结构和光学性能
DOI：
10.1016/j.ceramint.2019.06.185
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发表时间：
2019
影响因子：
5.2
通讯作者：
Kang Bin
中科院分区：
文献类型：
--
作者：
Yu Shengquan;Jing Wei;Tang Mingjing;Xu Tao;Yin Wenlong;Kang Bin
采用常规固相反应烧结技术制备了大尺寸高质量Nd：YAG及Yb：YAG复合透明陶瓷片。Yb：YAG透明陶瓷片被未掺杂的YAG透明陶瓷包围，这种复合结构是在陶瓷成型过程中形成的。Yb：YAG透明陶瓷和YAG透明陶瓷的显微结构没有差异，复合Yb：YAG片显示出完全致密和无孔隙的显微结构。YAG和Yb：YAG透明陶瓷在400 nm处的在线透过率分别达到81.7%和79.7%，表明复合陶瓷片具有良好的光学质量。光透射显微图像非常均匀，只有少数孤立的散射中心。结果表明，在陶瓷成型过程中构建复合结构是一种简单可靠的技术方案。并制备了尺寸为150.0 mm × 50.0 mm × 4.0 mm的大尺寸Nd：YAG透明陶瓷片。计算得到的吸收系数为0.002cm-1@1064nm，表明该Nd：YAG透明陶瓷片的光学质量已达到Nd：YAG晶体的水平。
Large-sized Nd:YAG and composite Yb:YAG transparent ceramic slabs of high quality were fabricated by the conventional solid-state reaction sintering technique. The Yb:YAG transparent ceramic slabs were surrounded by undoped YAG transparent ceramics and this composite structure was built in the process of ceramic shaping. The difference in microstructure between Yb:YAG and YAG transparent ceramics was not observed and the composite Yb:YAG slabs showed fully dense and pore-free microstructure. The in-line transmittances at 400 nm reached 81.7% and 79.7 % for YAG and Yb:YAG transparent ceramics, respectively, indicating good optical quality of the composite ceramic slab. And the optical transmission micrograph was very homogeneous with only a few isolated scattering centers. These results suggested that building composite structure in the process of ceramic shaping was a simple and reliable technical scheme. Moreover, the large-sized Nd:YAG transparent ceramic slab with size of 150.0 mm × 50.0 mm × 4.0 mm was also prepared. The calculated absorption coefficient was about 0.002 cm-1@1064 nm, which suggested that the optical quality of this Nd:YAG transparent ceramic slab had reached the level of Nd:YAG crystals.