Full set of piezo-optic and elasto-optic coefficients of Ca3TaGa3Si2O14 crystals at room temperature.
Full set of piezo-optic and elasto-optic coefficients of Ca3TaGa3Si2O14 crystals at room temperature.
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DOI：
10.1364/ao.398428
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发表时间：
2020-10
期刊：
影响因子：
1.9
通讯作者：
B. Mytsyk;Y. Suhak;N. Demyanyshyn;O. Buryy;N. Syvorotka;D. Sugak;S. Ubizskii;H. Fritze
中科院分区：
文献类型：
--
作者：
B. Mytsyk;Y. Suhak;N. Demyanyshyn;O. Buryy;N. Syvorotka;D. Sugak;S. Ubizskii;H. Fritze
采用基于单通马赫-曾德干涉仪的干涉法研究了Ca3TaGa3Si2O14 （CTGS）晶体的光弹性。利用压电光学实验中样品取向的最大数目来证明压电光学系数的准确性。基于压电光学系数矩阵和弹性刚度系数矩阵，计算了弹性光学矩阵的所有系数pik。对于最高的pik系数，声光效率进行了评估。将CTGS的实验结果与La3Ga5SiO14 （langasite）晶体的实验结果进行了比较。CTGS的最高声光优值M2=1.66⋅10-15s3/kg，分别是紫外光声光调制常用的langasite和锶硼酸盐的2倍和3倍。
The photoelasticity of the Ca3TaGa3Si2O14 (CTGS) crystal was studied by an interferometric method based on a single-pass Mach-Zehnder interferometer. The maximum number of sample orientations for the piezo-optic experiments was applied to prove accuracy in the determination of the piezo-optic coefficients. Based on the matrices of the piezo-optic coefficients and the elastic stiffness coefficients, all the coefficients pik of the elastic-optic matrix are calculated. For the highest pik coefficient, the acousto-optic efficiency is evaluated. The results obtained for CTGS are compared with the corresponding results for La3Ga5SiO14 (langasite) crystals. The highest acousto-optic figure of merit of CTGS M2=1.66⋅10-15s3/kg is two and three times higher, compared with langasite and strontium borate, respectively, which are often used for acousto-optic modulation of light in the ultraviolet spectral range.