Optical properties of Sr3TaGa3Si2O14 single crystal by Haifeng Qi, Aijian Wei, Zengmei Wang, and Duorong Yuan

Crystal Research and Technology

Cryst. Res. Technol. 39, 429 (2004) - Abstract -

Optical properties of Sr₃TaGa₃Si₂O₁₄ single crystal

Haifeng Qi, Aijian Wei, Zengmei Wang*, and Duorong Yuan*

School of Information Science and Engineering, Shandong University, Jinan, Shandong Province 250100, People’s Republic of China
*State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People’s Republic of China

Keywords	crystal growth, optical properties, optical activity, birefringence
PACS	78.20.Ek, 78.20.Fm
DOI	10.1002/crat.200310206

The specific rotation rho of strontium tantalum gallium silicate Sr₃TaGa₃Si₂O₁₄ (STGS) piezoelectric single crystal was determined from 350 to 850 nm by measuring the optical transmission between parallel polarisers in Z direction. It is shown that Sr₃TaGa₃Si₂O₁₄ has quite large a value of rho which is a little smaller than that of strontium niobium gallium silicate Sr₃NbGa₃Si₂O₁₄ (SNGS). The crystal with ordered structure which is isostructural to calcium gallium germanate Ca₃Ga₂Ge₄O₁₄ (CGG) was grown by Czochraiski technique. And its birefringence was also determined.

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