![Scientific and technical journal «Priborostroenie»](/images/mag-pr.png)
USING THE LASER CONОSCOPY METHOD FOR THE ANALYSIS AND EVALUATION OF OPTICAL QUALITY OF LITHIUM NIOBATE CRYSTALS
![Scientific and technical journal «Priborostroenie»](/images/mag-pr.png)
Annotation
Results obtained by the conoscopic method in the study of LiNbO3: Zn crystals with a low photore-fraction effect in the concentration range of 4.46—7.5 mol. % ZnO are presented. Analysis of full-scale conoscopic patterns in the polarized laser radiation confirms the abrupt (threshold) nature of the effect of zinc on the optical properties of single crystals when the concentration changes. The maximum value of anomalous biaxiality angle of 2V = 24' and anomalous birefringence Δn = 0.557•10-5 are recorded for a sample of LiNbO3: Zn with concentration of 7.5 mol. %.
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