Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment

doi:10.1016/j.optmat.2017.03.036

SIC OpenIR

	Fabrication and spectroscopic properties of Co:MgAl2O4transparent ceramics by the HIP post-treatment
	Luo, Wei 1,2,3; Ma, Peng 1; Xie, Tengfei 1; Dai, Jiawei 1,2; Pan, Yubai 4; Kou, Huamin 1; Li, Jiang 1
	2017
Source Publication	Optical Materials
ISSN	09253467
Volume	69 Pages:152-157
Abstract	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
DOI	10.1016/j.optmat.2017.03.036
EI Accession Number	20171703598542
EI Keywords	Magnesium compounds
EI Classification Number	633.1 Vacuum Applications - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 744 Lasers - 812.1 Ceramics
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Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/25880
Collection	中国科学院上海硅酸盐研究所
Affiliation	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
Recommended Citation 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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