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Study on crystal growth of large size Nd3+:Gd3Ga5O12 (Nd3+:GGG) by Czochralski method

2006; Elsevier BV; Volume: 292; Issue: 2 Linguagem: Inglês

10.1016/j.jcrysgro.2006.04.041

1873-5002

Zhitai Jia, Xutang Tao, Chunming Dong, Xiufeng Cheng, Weiguo Zhang, Fujun Xu, Minghua Jiang,

Perovskite Materials and Applications

In this paper we report the growth and characterization of Nd3+:Gd3Ga5O12 crystal. By altering the ratio of the initial materials, the growth atmosphere, the pulling and rotation rate, and by optimizing the thermal environment, we have eliminated a series of problems that often emerged during crystal growth, such as spiral boule growth, hollow boule growth and boule cracking. Large-sized Nd3+:Gd3Ga5O12 single crystal with good optical quality was obtained successfully and the dimensions of the as-grown crystal were ∅ 48×30 mm3. The Nd3+:Gd3Ga5O12 crystal was investigated by high resolution X-ray diffractometry, with the FWHM of the rocking curve 19″, which means the obtained crystal was of good structural quality.