Fabrication and properties of Co:MgAl2O4 transparent ceramics for a saturable absorber from coprecipitated nanopowder

被引：9

作者：

Liu, Qiang ^{[1
]}

Su, Sha ^{[1
,2
]}

Hu, Zewang ^{[2
,3
]}

Chen, Xiaopu ^{[2
,3
]}

Xie, Tengfei ^{[2
]}

Yang, Zhaoxiang ^{[2
]}

Pan, Hongming ^{[1
,2
]}

Liu, Xin ^{[2
,3
]}

Li, Jiang ^{[2
,3
]}

机构：

[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai, Peoples R China

[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2019年 / 102卷 / 06期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Co:MgAl2O4; coprecipitation; nanopowder; saturable absorber; transparent ceramics; Q-SWITCH PERFORMANCE; ELECTRICAL-PROPERTIES; NONLINEAR ABSORPTION; MAGNETIC-PROPERTIES; GLASS-CERAMICS; FIBER LASER; GRAIN-SIZE;

D O I：

10.1111/jace.16326

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：

The 0.05 at.% Co:MgAl2O4 precursor was synthesized by the coprecipitation method from a mixed solution of magnesium, aluminum, and cobalt nitrates using ammonium carbonate as the precipitant. 0.05 at.% Co:MgAl2O4 transparent ceramics were successfully obtained via vacuum sintering and hot isostatic pressing (HIP) of 0.05 at.% Co:MgAl2O4 nanopowder calcined at 1100 degrees C for 4hours. The properties of powder and ceramics were comprehensively investigated. X-ray diffraction (XRD) results showed that Co:MgAl2O4 nanopowder had a pure spinel phase. Also, the in-line transmittances of the HIP posttreated Co:MgAl2O4 ceramics with the thickness of 1.2mm were 82% at 400nm and 84.7% at 900nm. The average grain sizes of 0.05 at.% Co:MgAl2O4 ceramics before and after the HIP posttreatment were 11 and 28m, respectively. The calculated ground state absorption cross section of 0.05 at.% Co:MgAl2O4 ceramics was 2.9x10(-19)cm(2), indicating that this ceramics is a promising material applied as a saturable absorber for passive laser Q-switches in the 1.3-1.7m domain.

引用

页码：3097 / 3102

页数：6

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