1. Comparison of Yb:YAG crystals grown by CZ and TGT method
- Author
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Xu, Xiaodong, Zhao, Zhiwei, Zhao, Guangjun, Xin Song, Ping, Xu, Jun, and Deng, Peizhen
- Subjects
- *
CRYSTALLOGRAPHY , *TEMPERATURE inversions , *SPECTRUM analysis , *CRYSTALS - Abstract
Five atomic percent Yb:YAG laser crystals have been grown by Czochralski (CZ) and temperature gradient technique (TGT) method. The absorption spectra of as-grown and annealed Yb:YAG crystals have been investigated. There is no Yb2+ and color center absorption in TGT-grown Yb:YAG crystals; the absorption peak of CZ-grown Yb:YAG crystals after O2-annealing at 255 nm is attributed to Fe3+ ions. The longitudinal distribution of Yb3+ ions has also been studied; TGT-grown Yb:YAG crystal has a larger distributing inhomogeneity of Yb3+ although it is large sized. [Copyright &y& Elsevier]
- Published
- 2003
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