Journal of Shanghai University(Natural Science Edition) ›› 2021, Vol. 27 ›› Issue (4): 659-665.doi: 10.12066/j.issn.1007-2861.2162

• Research Articles • Previous Articles     Next Articles

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

WU Bingxin1,2,3, WANG Xianyang1,2,3, WANG Xu1,2,3, WU Yongquan1,2,3()   

  1. 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:2019-04-26 Online:2021-08-20 Published:2021-07-22
  • Contact: WU Yongquan E-mail:yqwu@staff.shu.edu.cn

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

CLC Number: