• the investigation of the refractive parameters of dielectric crystals of sulfates group;
• the influence of impurities on the refractive parameters of dielectric crystals of sulfates group.

1. Rudysh M. Ya. Optical and electronic parameters of Rb₂SO₄ crystals / M. Ya Rudysh,­­­­­­­­ I.A. Pryshko, P.A. Shchepanskyi, V. Yo Stadnyk, R.S. Brezvin, Z.O. Kogut // Optik. – 2022. – Vol. 269. P.169875. https://doi.org/10.1016/j.ijleo.2022.169875

2. Pryshko I. A. On the low-temperature isotropic point in Rb₂SO₄ crystals // I.A. Pryshko, V.Yo. Stadnyk, V. M. Salapak // Low temperature Physics – 2023. –  V. 49, N. 10. – P. 1279–1285. https://doi.org/10.1063/10.0020870.

3. Пришко І. Ізотропність у кристалах сульфату рубідію / І. Пришко, В. Стадник, П. Щепанський, Л. Карплюк, Н. Фтомин // Вісник Львівського університету. Серія фізична. – 2023. – Вип. 60. – с. 78-89. https://doi.org/10.30970/vph.60.2023.78.

In 2020 Ivan Pryshko graduated from the Faculty of Physics of Ivan Franko National University of Lviv with honors. He has received the full higher education in the specialty of “Applied Physics and Nanomaterials” and got a Master’s (Bachelor degree in the specialty of “Applied Physics”, qualification – Teacher of Physics (2019)).

From September 2021 he is a postgraduate student and a lecturer of the Department of General Physics.

The thesis is named “Thermo-optical and band-energy parameters of Rb₂SO₄ crystals under the action of external factors”. Professor V. Yo. Stadnyk is a supervisor of his thesis.

He is the author of 3 articles and 7 thesis.

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