Optical properties and 532nm to 266nm second harmonic generation in bulk β-BBO crystals grown from the BaB2O4-NaBaBO3-V2O5 system

Ekaterina A. Simonova; Dmitry M. Ezhov; Ammar Y. Jamous; Valery A. Svetlichnyi; Artem B. Kuznetsov; Anastasia A. Goreyavcheva; Vyacheslav S. Shevchenko; Alexander E. Kokh

doi:10.1117/12.3009739

2 November 2023 Optical properties and 532nm to 266nm second harmonic generation in bulk β-BBO crystals grown from the BaB₂O₄-NaBaBO₃-V₂O₅ system

Ekaterina A. Simonova, Dmitry M. Ezhov, Ammar Y. Jamous, Valery A. Svetlichnyi, Artem B. Kuznetsov, Anastasia A. Goreyavcheva, Vyacheslav S. Shevchenko, Alexander E. Kokh

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Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 1292016 (2023) https://doi.org/10.1117/12.3009739
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation

Abstract

This article focuses on the top-seeded solution growth (TSSG) of single crystals of the low-temperature non-centrosymmetric modification of barium borate, β-BaB₂O₄ (β-BBO), using a mixed solvent comprising NaBaBO₃ and V₂O₅. We examine the linear absorption properties across a wide spectral range and nonlinear second harmonic generation (SHG) from 532 nm to 266 nm in β-BBO samples under Nd:YAG laser radiation pumping. The mean linear absorption for ordinary waves in vanadium-based crystals at wavelengths from 300 to 600 nm is found to be an order of magnitude higher than that in standard samples, measuring 0.0059 and 0.0007 cm^-1, respectively. However, crystals grown from the proposed vanadium-based solution still exhibit similar SHG efficiency to standard samples. Deviations from the quadratic dependence are observed at pump power densities exceeding 20 MW/cm², possibly attributed to temperature effects resulting from insufficient temperature stabilization.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Ekaterina A. Simonova, Dmitry M. Ezhov, Ammar Y. Jamous, Valery A. Svetlichnyi, Artem B. Kuznetsov, Anastasia A. Goreyavcheva, Vyacheslav S. Shevchenko, and Alexander E. Kokh "Optical properties and 532nm to 266nm second harmonic generation in bulk β-BBO crystals grown from the BaB₂O₄-NaBaBO₃-V₂O₅ system", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 1292016 (2 November 2023); https://doi.org/10.1117/12.3009739

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KEYWORDS

Crystals

Second harmonic generation

Vanadium

Absorption

Optical properties

Barium

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