کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8943160 | 1645135 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication, photoluminescence and terahertz absorption properties of Yb:YAG transparent ceramics with various Yb dopant concentrations
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Highly transparent Yb:YAG laser ceramics with various Yb3+ doping level were successfully fabricated through vacuum sintering of co-precipitated powders in combination with the hot isostatic pressing process. The effects of various Yb3+ dopant concentrations (1-15â¯at.%) on the photoluminescence, terahertz absorption and optical characteristics of Yb:YAG transparent ceramics were investigated. Characterizations of the Near-IR photoluminescence emission and kinetics of the Yb:YAG ceramics revealed the corresponding 2F5/2â¯ââ¯2F7/2 characteristic bands of Yb3+ and the lifetime enhanced with increasing Yb3+ dopant concentrations, confirming no concentration quenching effect in Yb:YAG. Measurements of terahertz absorption properties of Yb:YAG transparent ceramics by a time-domain spectroscopy evidenced that both the cutoff frequency and terahertz absorption coefficient of Yb:YAG samples depended upon the Yb3+ dopant concentrations. The underlying mechanisms by which such Yb3+ dopant concentrations affected the terahertz absorption and optical properties were also discussed. The optical attenuation loss values were measured at 1064â¯nm for all the samples, to be â¼0.030â¯cmâ1, a value close to that observed for single crystal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 85, November 2018, Pages 106-112
Journal: Optical Materials - Volume 85, November 2018, Pages 106-112
نویسندگان
Xingtao Chen, Yiquan Wu, Nian Wei, Zhongwen Lu, Tengfei Hua, Qiang Zeng, Wang Guo, Jianqi Qi, Tiecheng Lu,