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Proceedings Paper

Secondary structure and optical properties of ferroelectric lithium niobate crystals
Author(s): N. V. Sidorov; M. N. Palatnikov
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Paper Abstract

Manifestation of the secondary structure of lithium niobate single crystals with low photorefractive effect was researched by Raman scattering and photoinduced light scattering (PILS). Laser induced static microdefects with changed refractive index were revealed. Shape and asymmetry of PILS patterns were demonstrated to depend on difference in refractive indexes and energies of ordinary and extraordinary beams. Nonmonotonicity of temperature dependence of Raman bands intensities was shown to be caused by gradual shutdown of photorefraction mechanisms at rise in the temperature that leads to decrease of laser radiation intensity. We have revealed an concentration area of high structure order in LiNbO3:Zn crystals. Raman bands that probably correspond to А2 symmetry scalar vibrations were detected in LiNbO3 crystals strongly doped by Zn and Mg.

Paper Details

Date Published: 14 December 2016
PDF: 8 pages
Proc. SPIE 10176, Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics, 101761Q (14 December 2016); doi: 10.1117/12.2268162
Show Author Affiliations
N. V. Sidorov, Kola Science Ctr. (Russian Federation)
M. N. Palatnikov, Kola Science Ctr. (Russian Federation)

Published in SPIE Proceedings Vol. 10176:
Asia-Pacific Conference on Fundamental Problems of Opto- and Microelectronics
Yuri N. Kulchin; Roman V. Romashko; Alexander V. Syuy, Editor(s)

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