Investigation of the thermal evolution of nanodomain structures in barium sodium niobate crystals by light scattering methods

S. V. Ivanova

doi:10.1117/12.677880

14 June 2006 Investigation of the thermal evolution of nanodomain structures in barium sodium niobate crystals by light scattering methods

S. V. Ivanova

Author Affiliations +

Proceedings Volume 6259, ICONO 2005: Nonlinear Optical Phenomena; 62590I (2006) https://doi.org/10.1117/12.677880
Event: ICONO 2005, 2005, St. Petersburg, Russian Federation

Abstract

The study of light scattering by the barium sodium niobate crystals has been performed in range of 20-800°C at the excitation of the crystal by argon (514,5 nm) and helium neon (λ=630.0nm) lasers. At heating from room temperature near 500°C the laser observed increasing far field spot dimension for λ=514.5 nm. It was observed also on heating, that the elastic light scattering intensity increases near the ferroelectric phase transition (T_c=550°C) for λ=632.8 nm in contrast with decrease for λ=514.5 nm. It have related our measurements to results of x-ray and electron microscope investigations by works.^3,4

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S. V. Ivanova "Investigation of the thermal evolution of nanodomain structures in barium sodium niobate crystals by light scattering methods", Proc. SPIE 6259, ICONO 2005: Nonlinear Optical Phenomena, 62590I (14 June 2006); https://doi.org/10.1117/12.677880

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