Abstract
In order to correct the errors present in our recent study (Savaryn V. et al. Ukr. J. Phys. Opt. 13 (2012) 82), we have rederived the main phenomenological relations describing the changes in optical anisotropy of crystalline disks loaded along their diameters. Basing on the analysis of these relations, we have developed an improved technique for determining the piezooptic coefficients 44 , 55 and 66 for the crystals of almost all of the point symmetry groups. The technique is based on studying the spatial distributions of optical birefringence and optical indicatrix rotation angle induced along the chords and diameters of a crystalline disk compressed along its diameter.
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