Complete sets of elastic constants and photoelastic coefficients of pure and MgO-doped lithium niobate crystals at room temperature
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| Titre | Complete sets of elastic constants and photoelastic coefficients of pure and MgO-doped lithium niobate crystals at room temperature |
| Type de publication | Article de revue |
| Auteur | Andrushchak, A.-S., Mytsyk, B.-G., Laba, H.-P., Yurkevych, O.-V., Solskii, I.-M., Kityk, A.-V., Sahraoui, Bouchta |
| Editeur | American Institute of Physics |
| Type | Article scientifique dans une revue à comité de lecture |
| Année | 2009 |
| Langue | Anglais |
| Date | 2009/10 |
| Numéro | 7 |
| Pagination | 073510 - 073510-6 |
| Volume | 106 |
| Titre de la revue | Journal of Applied Physics |
| ISSN | 0021-8979 |
| Mots-clés | acousto-optical effects, doping profiles, elastic constants, laser beam effects, lithium compounds, magnesium compounds, photoelasticity, piezo-optical effects, piezoelectricity |
| Résumé en anglais | This paper presents the results of ultrasonic measurements of LiNbO3 and LiNbO3:MgO crystals. The tensors of piezoelectric coefficients, elastic stiffness constants, and elastic compliances are determined for both crystals at room temperature. Combining these data with the results of piezo-optical measurements, a complete set of photoelastic tensor coefficients is also calculated. Doping of LiNbO3 crystals by MgO does not lead to a considerable modification of their elastic and photoelastic properties. However, LiNbO3:MgO is characterized by a considerably higher resistance with respect to powerful light radiation, making it promising for future application in acousto-optic devices that deal with superpowerful laser radiation. Presented here are the complete tensor sets of elastic constants and photoelastic coefficients of LiNbO3 and LiNbO3:MgO crystals that may be used for a geometry optimization of acousto-optical interaction providing the best diffraction efficiency of acousto-optical cells made of these materials. |
| URL de la notice | http://okina.univ-angers.fr/publications/ua1926 |
| DOI | 10.1063/1.3238507 |
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