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Synthesis and Greatly Enhanced Fluorescence Emission of Transparent Nd-doped Y3ScxAl5−xO12 Ceramics

Published online by Cambridge University Press:  03 March 2011

Tao Feng ,
Jianlin Shi ,
Jiyang Chen  and
Danyu Jiang
Tao Feng
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Jianlin Shi*
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Jiyang Chen
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
Danyu Jiang
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050 People’s Republic of China
*
a) Address all correspondence to this author. e-mail: jlshi@sunm.shchc.ac.cn
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Abstract

Nd-doped Y3ScxAl5−xO12(Nd:YSAG) powder were prepared with a chemical combustion method. The powders were nano-sized and had a pure cubic phase when calcined at 900 °C. Transparent Nd:YSAG ceramics with up to 40% scandium substitution for aluminum were successfully fabricated by sintering the powder compact at 1800 °C under H2 atmosphere. The synthesis process and optical properties were investigated in detail. It was found that the light emission intensity at 1064 nm of the Nd:YSAG with 40% scandium substitution for aluminum can be enhanced by 2–3 times over that of Nd:YAG single crystal when pumped with the same 808-nm diode laser. In addition, the material was found to have prolonged fluorescence lifetime. This highly enhanced light emission intensity is fundamentally important for obtaining higher light output together with suppressed self-heating than Nd:YAG ceramic and single crystals.

Keywords

CeramicsOpticalSintering
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 9 , September 2005 , pp. 2322 - 2327
Copyright
Copyright © Materials Research Society 2005

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References

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