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Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment
Luo, Wei1,2,3; Ma, Peng1; Xie, Tengfei1; Dai, Jiawei1,2; Pan, Yubai4; Kou, Huamin1; Li, Jiang1
2017
发表期刊Optical Materials
ISSN09253467
卷号69页码:152-157
摘要Cobalt-doped magnesium aluminate spinel (Co:MgAl2O4) is one of the most important saturable absorbers for the passive Q-switching of solid-state lasers operating at eye-safe wavelength of 1.5 μm. In this work, highly transparent Co:MgAl2O4ceramics were fabricated by vacuum sintering combined with hot isostatic pressing (HIP) post-treatment, using the mixture of the commercial spinel and the lab-made Co:MgAl2O4powder as the raw materials. The densification mechanism of Co:MgAl2O4transparent ceramics was discussed. The microstructure and optical properties of the samples were investigated. The ground state absorption cross section (σGSA) was calculated from the fitted curve of the absorption coefficient spectrum. The results show that Co:MgAl2O4ceramics fabricated by vacuum sintering at 1500 °C for 5 h and then HIP post-treatment at 1650 °C for 3 h perform good transparency, whose in-line transmittance exceeds 80% at 2500 nm. Moreover, the ground state absorption cross section of 0.02 at.% Co:MgAl2O4ceramics is calculated to be 3.35 × 10−19cm2at the wavelength of 1540 nm, which is promising for the application to the passive Q-switching of solid-state laser operating in the near infrared region (NIR). © 2017
DOI10.1016/j.optmat.2017.03.036
EI入藏号20171703598542
EI主题词Magnesium compounds
EI分类号633.1 Vacuum Applications - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 744 Lasers - 812.1 Ceramics
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25880
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Department of Material Science and Technology, Luoyang Institute of Technology, Luoyang; Henan; 471023, China;
4.Department of Physics, Shanghai Normal University, Shanghai; 200234, China
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GB/T 7714
Luo, Wei,Ma, Peng,Xie, Tengfei,et al. Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment[J]. Optical Materials,2017,69:152-157.
APA Luo, Wei.,Ma, Peng.,Xie, Tengfei.,Dai, Jiawei.,Pan, Yubai.,...&Li, Jiang.(2017).Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment.Optical Materials,69,152-157.
MLA Luo, Wei,et al."Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment".Optical Materials 69(2017):152-157.
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