Growth of Yb-doped fluorapatate crystal and study of its defects and spectroscopy performance

Peizhi Yang; Peizhen Deng; Jun Xu; Yao Chai; Wei Min Chen

doi:10.1117/12.318250

14 August 1998 Growth of Yb-doped fluorapatate crystal and study of its defects and spectroscopy performance

Peizhi Yang, Peizhen Deng, Jun Xu, Yao Chai, Wei Min Chen

Proceedings Volume 3556, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II; (1998) https://doi.org/10.1117/12.318250
Event: Photonics China '98, 1998, Beijing, China

Abstract

We have successfully grown Yb:FAP(fluorapatite) crystal doped with 1 - 5 at% Yb by CZ technique. Crystalline boules which are colorless and transparent have the size of 22 mm in diameter and 45 mm in length. The optimal growth parameters are presented. During a Yb:FAP crystal growth run there exists a continuous loss of fluoride through evaporation, so 5% excess of calcium fluoride was usually added. To eliminate the defects, a post-annealing method has been developed where the boule is suspended above the melt surface for two days in a temperature zone that is about 400 degrees Celsius below the melting point. The defects of crystals were discussed, and the spectroscopy performances of Yb:FAP crystal were reported.

Citation Download Citation

Peizhi Yang, Peizhen Deng, Jun Xu, Yao Chai, and Wei Min Chen "Growth of Yb-doped fluorapatate crystal and study of its defects and spectroscopy performance", Proc. SPIE 3556, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II, (14 August 1998); https://doi.org/10.1117/12.318250

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