| 单晶LiTaO3折射率和声学物理常数的布里渊散射 |
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| 引用本文： | 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 |
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| 作者姓名： | 吴丙心 王贤洋 王旭 吴永全 |
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| 作者单位： | 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;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;上海大学材料科学与工程学院,上海200444 |
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| 基金项目： | 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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| 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.
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| 关 键 词： | 布里渊散射 钽酸锂单晶 折射率 物理常数 |
| 收稿时间： | 2019-04-26 |
Brillouin scattering on refractive index and acoustic physical constants of LiTaO3 single crystal |
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| WU Bingxin,WANG Xianyang,WANG Xu,WU Yongquan. Brillouin scattering on refractive index and acoustic physical constants of LiTaO3 single crystal[J]. Journal of Shanghai University(Natural Science), 2021, 27(4): 659-665. DOI: 10.12066/j.issn.1007-2861.2162 |
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| Authors: | WU Bingxin WANG Xianyang WANG Xu WU Yongquan |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | Brillouin scattering LiTaO$_{3}$ single crystal refractive index physical constants |
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