Photorefractive properties of lithium niobate crystals studied by Raman spectroscopy

Ninel Kokanyan; Anush Danielyan; Michel Aillerie; Sergey Kostritskii; Thierry Aubert; Narine Babajanyan; Edvard Kokanyan

doi:10.1117/12.2527615

3 October 2019 Photorefractive properties of lithium niobate crystals studied by Raman spectroscopy

Ninel Kokanyan, Anush Danielyan, Michel Aillerie, Sergey Kostritskii, Thierry Aubert, Narine Babajanyan, Edvard Kokanyan

Author Affiliations +

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 1120723 (2019) https://doi.org/10.1117/12.2527615
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

Time evolution of Raman spectra depending on temperature were carried out on iron-doped photorefractive lithium niobate crystals with different Li content in the melt. The frequency shift of Raman lines are observed with time giving the possibility to calculate the saturation values of the photorefractive space charge field showing a linear decrease with temperature. Space charge field values are much lower for near-stoichiometric compsition sample comparing to near-congruent ones.

Citation Download Citation

Ninel Kokanyan, Anush Danielyan, Michel Aillerie, Sergey Kostritskii, Thierry Aubert, Narine Babajanyan, and Edvard Kokanyan "Photorefractive properties of lithium niobate crystals studied by Raman spectroscopy", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 1120723 (3 October 2019); https://doi.org/10.1117/12.2527615

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