单晶 LiTaO<sub>3</sub> 折射率和声学物理常数的布里渊散射

吴丙心, 王贤洋, 王旭, 吴永全

doi:10.12066/j.issn.1007-2861.2162

上海大学学报(自然科学版) >

2021 , Vol. 27 >Issue 4: 659 - 665

DOI: https://doi.org/10.12066/j.issn.1007-2861.2162

研究论文

单晶 LiTaO₃ 折射率和声学物理常数的布里渊散射

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1.上海大学省部共建高品质特殊钢冶金与制备国家重点实验室, 上海 200444
2.上海大学上海市钢铁冶金新技术开发应用重点实验室, 上海 200444
3.上海大学材料科学与工程学院, 上海 200444

吴永全(1973—), 男, 教授, 博士生导师, 研究方向为计算机模拟和光谱分析等. E-mail: yqwu@staff.shu.edu.cn

收稿日期: 2019-04-26

网络出版日期: 2019-10-28

基金资助

国家自然科学基金资助项目(51374141);国家自然科学基金资助项目(52074178)

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Brillouin scattering on refractive index and acoustic physical constants of LiTaO₃ single crystal

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1. State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, China
2. Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai University, Shanghai 200444, China
3. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China

Received date: 2019-04-26

Online published: 2019-10-28

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摘要

通过布里渊散射技术, 在背散射几何设置下, 原位获得了钽酸锂(LiTaO₃ )单晶样品的折射率. 结合对称散射几何设置, 通过对同一块 X-cut LiTaO₃ 单晶样品进行测试, 得到了其全部独立的声学物理常数(6 个弹性常数、4 个压电常数和 2 个介电常数). 实验结果与文献报道结果吻合很好.

关键词： 布里渊散射; 钽酸锂单晶; 折射率; 物理常数

本文引用格式

吴丙心, 王贤洋, 王旭, 吴永全 . 单晶 LiTaO₃ 折射率和声学物理常数的布里渊散射[J]. 上海大学学报(自然科学版), 2021 , 27(4) : 659 -665 . DOI: 10.12066/j.issn.1007-2861.2162

Abstract

The in situ refractive index of LiTaO₃ single crystals was obtained by Brillouin scattering under a backscattering configuration. Combined with the platelet scattering configuration, all the independent physical constants, namely six elastic constants, four piezoelectric constants and two dielectric constants, were obtained by conducting the same X-cut LiTaO₃ single crystal. The results agreed well with the reported values.

Key words： Brillouin scattering; LiTaO$_{3}$ single crystal; refractive index; physical constants

参考文献

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