Abstract—

This paper reports a process for the growth of optically homogeneous lithium niobate single crystals containing boron as a dopant. A LiNbO₃:B crystal has been grown by the Czochralski technique using a single-phase growth charge synthesized from a Nb₂O₅:B precursor and lithium carbonate. We have assessed the optical quality of the crystal by a high-speed method from the number of scattering centers, evaluated its single-domain state by piezoacoustic measurements, and calculated its d₃₃₃ piezoelectric modulus component. The results demonstrate that the crystal has a high degree of optical uniformity and is single-domain. The proposed method for LiNbO₃:B crystal growth can serve as a basis of a commercial-scale process for the preparation of doped lithium niobate single crystals for various engineering applications.

中文翻译：

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掺硼铌酸锂单晶的生长与表征

摘要-

本文报道了一种以硼为掺杂剂的光学均质铌酸锂单晶的生长过程。已经通过切克劳斯基技术使用由Nb ₂ O ₅：B前体和碳酸锂合成的单相生长电荷来生长LiNbO ₃：B晶体。我们已经从散射中心的数量通过高速方法评估了晶体的光学质量，并通过压电声学测量评估了其单畴状态，并计算了d ₃₃₃压电模量。结果表明该晶体具有高度的光学均匀性并且是单畴的。LiNbO ₃的建议方法：B晶体的生长可以用作商业规模工艺的基础，以制备用于各种工程应用的掺杂铌酸锂单晶。