Growth and properties of Tm: YAG crystals

The high optical quality Tm: YAG single crystals with dopant concentrations of 2, 4, 8 at % Tm3+ ions have been grown by the Czochralski (CZ) method .The segregation coefficients of Tm3+ ions in CZ-grown 2, 4, 8 at % doped Tm: YAG crystals determined by ICP-AES method are equal to 0.93, 1.04, 1.10,...

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Veröffentlicht in:	Journal of crystal growth 2004-10, Vol.270 (3-4), p.433-437
Hauptverfasser:	Song, Pingxin, Zhao, Zhiwei, Xu, Xiaodong, Jang, Benxue, Deng, Peizhen, Xu, Jun
Format:	Artikel
Sprache:	eng
Schlagworte:	A1. Segregation coefficient A1. Spectra properties A2. Czochralski method B1. Tm: YAG crystal Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Equations of state, phase equilibria, and phase transitions Exact sciences and technology Growth from melts zone melting and refining Materials science Methods of crystal growth physics of crystal growth Physics Solubility, segregation, and mixing phase separation
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Beschreibung
Zusammenfassung:	The high optical quality Tm: YAG single crystals with dopant concentrations of 2, 4, 8 at % Tm3+ ions have been grown by the Czochralski (CZ) method .The segregation coefficients of Tm3+ ions in CZ-grown 2, 4, 8 at % doped Tm: YAG crystals determined by ICP-AES method are equal to 0.93, 1.04, 1.10, respectively. The absorption spectra in the range of 190–900nm and the IR absorption spectra in the range of 1000–4500cm−1 of the Tm: YAG crystals were also measured at room temperature. The results indicate that Tm: YAG is favorable for laser diode-pumped system, and air annealing can improve the quality of the Tm: YAG crystal.
ISSN:	0022-0248 1873-5002
DOI:	10.1016/j.jcrysgro.2004.06.042