Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions,Crystal Research and Technology

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Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2019-11-07 , DOI: 10.1002/crat.201900117
Dmytro Sugak _{1,

2} , Ihor Syvorotka _{1,

2} , Uliana Yakhnevych ₁ , Oleh Buryy ₁ , Neonila Levintant-Zayonts ₃ , Hrygoriy Savytskyy ₄ , Oleksandr Bonchyk ₄ , Sergii Ubizskii ₁

Affiliation

Spatial changes of optical and mechanical properties of doped lithium niobate (LN, LiNbO₃) single crystals are investigated. The crystals are doped with copper ions by thermal diffusion at elevated temperatures. LiNbO₃ crystal absorption spectra are recorded in a direction perpendicular to the direction of diffusion. The concentrations of copper ions are calculated using the Smakula–Dexter formula. To determine a relation between changes of optical and mechanical properties, the hardness profiles of the doped crystals are investigated by the nanoindentation technique. Young's modulus and hardness are specified in accordance with the Oliver–Pharr method.

中文翻译：

铜离子掺杂铌酸锂单晶扩散的纳米硬度和杂质分布分布的比较研究

研究了掺杂铌酸锂（LN，LiNbO ₃）单晶的光学和机械性能的空间变化。通过在高温下的热扩散将铜离子掺杂到晶体中。在垂直于扩散方向的方向上记录LiNbO ₃晶体吸收光谱。使用Smakula–Dexter公式计算铜离子的浓度。为了确定光学性质和机械性质的变化之间的关系，通过纳米压痕技术研究了掺杂晶体的硬度分布。杨氏模量和硬度根据Oliver–Pharr方法指定。

更新日期：2019-12-09

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