Effects of gamma-irradiation and air annealing on Yb-doped Y3Al5O12 single crystal

Authors :: Zeng, Xionghui
Xu, Xiaodong
Wang, Xiaodan
Zhao, Zhiwei
Zhao, Guangjun
Xu, Jun
Source :: Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy. Mar2008, Vol. 69 Issue 3, p860-864. 5p.
Publication Year :: 2008
Abstract: Abstract: The effects of gamma-irradiation on the air-annealed 10at.% Yb:Y3Al5O12 (YAG) and air annealing on the gamma-irradiated 10at.% Yb:YAG have been studied by the difference absorption spectra before and after treatment. The gamma-irradiation and air annealing led to opposite changes of the absorption properties of the Yb:YAG crystal. After air annealing, the gamma-irradiation induced centers were totally removed and the concentration of Fe3+ and Yb3+ were lightly increased. For the first time, the gamma-irradiation induced valence changes between Yb3+ and Yb2+ ions in Yb:YAG crystals have been observed. [Copyright &y& Elsevier]

Subjects :: *GAMMA rays
*ELECTROMAGNETIC waves
*IRRADIATION
*RADIATION
*ANNEALING of metals
*YTTERBIUM

Language :: English
ISSN :: 13861425
Volume :: 69
Issue :: 3
Database :: Academic Search Index
Journal :: Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
Publication Type :: Academic Journal
Accession number :: 30876819
Full Text :: https://doi.org/10.1016/j.saa.2007.05.042

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