Abstract In this paper, we researched the growth mechanism of solid-state crystal growth (SSCG) method in planar waveguide. The effect of tetraethyl orthosilicate (TEOS) inside YAG (yttrium aluminum garnet) ceramic matrixes on the YAG single-crystal growth was studied. The results indicated that the crystal growth increased with increasing TEOS content. Theoretical analysis confirmed that the solid-state crystal growth kinetics could be fitted by the Lifshitz–Slyozov–Wagner law. Additionally, the segregation of silicon was observed, the SSCG process with SiO2 effectively eliminated the pores in the YAG ceramic matrices via diffusion to the growth interface between the crystal and the ceramic. We successfully obtained high transparency YAG single crystal using the SSCG method, which transmittance value reached 83.62% at 1064 nm.

中文翻译：

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固态晶体生长法在平面波导中生长YAG单晶机理

摘要 本文研究了固态晶体生长(SSCG)法在平面波导中的生长机理。研究了原硅酸四乙酯 (TEOS) 在 YAG（钇铝石榴石）陶瓷基体中对 YAG 单晶生长的影响。结果表明晶体生长随着TEOS含量的增加而增加。理论分析证实固态晶体生长动力学符合 Lifshitz-Slyozov-Wagner 定律。此外，观察到硅的偏析，使用 SiO2 的 SSCG 工艺通过扩散到晶体和陶瓷之间的生长界面，有效地消除了 YAG 陶瓷基质中的孔隙。我们使用SSCG方法成功获得了高透明度YAG单晶，其在1064 nm处的透光率值达到了83.62%。