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Static photoelasticity of gallium phosphide crystals |
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| Authors: | B. G. Mytsyk A. S. Andrushchak Ya. P. Kost’ |
| Affiliation: | 1.Karpenko Physico-Mechanical Institute,National Academy of Sciences of Ukraine,Lviv,Ukraine;2.Institute of Physical Optics,Ministry of Education and Science of Ukraine,Lviv,Ukraine;3.National University “Lvivska Politekhnica”,Lviv,Ukraine |
| Abstract: | The piezo-optic effect (POE) in cubic GaP crystals (symmetry class [`4]bar 43m) is studied in detail by interferometry. The relations for determining the absolute piezo-optic coefficients (POCs) π im or their combinations on a sample of X/45° cut at all allowable geometries of the experiment are recorded. The determination of a specific coefficient π im at different experimental geometries on samples of right cuts and a X/45° cut made it possible to find the π im values with a high accuracy and reliability. |
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