Studying the Nonlinear Optical Response from Local Polar Inhomogeneities in Strontium Barium Niobate Crystals of Different Chemical Composition

A. M. Pugachev; I. V. Zaytseva; V. K. Malinovsky; N. V. Surovtsev; L. I. Ivleva; P. A. Lykov

doi:10.3103/S1062873818030206

Studying the Nonlinear Optical Response from Local Polar Inhomogeneities in Strontium Barium Niobate Crystals of Different Chemical Composition

Авторы: Pugachev A.M.¹, Zaytseva I.V.¹, Malinovsky V.K.¹, Surovtsev N.V.¹, Ivleva L.I.², Lykov P.A.²
Учреждения:
1. Institute of Automation and Electrometry
2. Prokhorov General Physics Institute
Выпуск: Том 82, № 3 (2018)
Страницы: 261-265
Раздел: Proceedings of the XXI National Conference on Magnetoelectrics Physics
URL: https://journals.rcsi.science/1062-8738/article/view/185322
DOI: https://doi.org/10.3103/S1062873818030206
ID: 185322

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Аннотация

The generation of the second optical harmonic in a series of SBN-x crystals (x = 0.75, 0.61, 0.50, 0.33) is studied in the 200–900 K temperature range. It is shown that the spectral width of nonlinear response in all samples is less than 1 cm⁻¹ and does not depend on the temperature. Its integral intensity follows the Arrhenius law. The parameters of this Arrhenius presentation are determined and compared with the corresponding parameters for a number of ferroelectrics and relaxors.