Nonlinear refraction, nonlinear absorption, and optical limiting in BSO and BGO photorefractive crystals

Aleksandr Igorevich Ryasnyanskiy

doi:10.1117/12.540654

1 September 2004 Nonlinear refraction, nonlinear absorption, and optical limiting in BSO and BGO photorefractive crystals

Aleksandr Igorevich Ryasnyanskiy

Author Affiliations +

Proceedings Volume 5460, Solid State Lasers and Amplifiers; (2004) https://doi.org/10.1117/12.540654
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

This paper presents experimental results on nonlinear refraction, nonlinear absorption and optical limiting in photrefractive crystals Bi₁₂SiO₂₀ (BSO) and Bi₁₂GeO₂₀ (BGO) at the fundamental and second harmonic wavelengths of picosecond Nd:YAG laser radiation. It is shown that nonlinear refraction was due self-focusing process when nonlinear absorption was due to three-photon absorption at the wavelength of 1064 nm and two-photon absorption at the wavelength of 532 nm.

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Aleksandr Igorevich Ryasnyanskiy "Nonlinear refraction, nonlinear absorption, and optical limiting in BSO and BGO photorefractive crystals", Proc. SPIE 5460, Solid State Lasers and Amplifiers, (1 September 2004); https://doi.org/10.1117/12.540654

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