Vasylkiv Yurij, Savaryn Viktoriya, Smaga Ihor, Skab Ihor, Vlokh Rostyslav
Institute of Physical Optics, 23 Dragomanov Street, 79005 Lviv, Ukraine.
Appl Opt. 2011 Jun 10;50(17):2512-8. doi: 10.1364/AO.50.002512.
We have shown that a high-accuracy torsion method recently developed by the authors for measuring piezo-optic coefficients allows determining not only the absolute value of the coefficients but also their sign. The techniques and experimental procedures used for determination of the sign are described in detail and proven based on studies of α-BaB2O4 and LiNbO3 crystals. The piezo-optic coefficients are determined for both crystals, and a combination of the corresponding photoelastic coefficients is determined for the case of α-BaB2O4 crystals.
我们已经表明，作者最近开发的一种用于测量压电光学系数的高精度扭转方法不仅可以确定系数的绝对值，还可以确定其符号。详细描述了用于确定符号的技术和实验程序，并基于对α-BaB2O4和LiNbO3晶体的研究进行了验证。确定了两种晶体的压电光学系数，并针对α-BaB2O4晶体的情况确定了相应光弹性系数的组合。
