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Refined measurements of piezooptic coefficient pi66 for the lithium niobate crystals, using a crystalline disk compressed along its diameter
Ukrainian Journal of Physical Optics
We have checked the accuracy and reliability of an experimental technique suggested earlier for determining piezooptic coefficients. It is based on inducing a predefined 2D distribution of mechanical stresses in a transparent material disk compressed along its diameter. We have shown that the technique enables to measure the piezoopic constants with high enough accuracy. The sources of experimental errors are thoroughly analyzed and eliminated. The experimental procedures are presented indoi:10.3116/16091833/15/1/30/2014 fatcat:ccevlt6obnc2hclkypz3oyz55u