• piezo- and acusto-optics. Exchange of beams’ angular momentum in low-symmetry crystals.

Articles:

1. Kostyrko M. Peculiarities of acousto-optic diffraction at circularly polarized acoustic waves. Determination of elasto-optic coefficients coupled with shear waves  / M. Kostyrko, I. Orykhivskyi, I. Skab, R. Vlokh // Ukrainian Journal of Physical Optics. – 2020. – Vol. 21 (4). – P. 201–206.
2. Mys O. Types of acousto-optic interactions between acoustic and circularly polarized optical waves:case of Pb₅Ge₃O₁₁ crystals  / O. Mys, O. Krupych, I. Martynyuk-Lototska, I. Orykhivskyi, M. Kostyrko,  R. Vlokh // Applied Optics. – 2021. – Vol. 60 (10). – P. 2846–2853.
3. Kostyrko M. Peculiarities of acousto-optic diffraction at circularly polarized acoustic waves. Determination of elasto-optic coefficients coupled with shear waves. Errata  / M. Kostyrko, I. Orykhivskyi, I. Skab, R. Vlokh // Ukrainian Journal of Physical Optics. – 2021. – Vol. 22 (1). – P. 50–52.
4. Krupych O. Polarization of diffracted optical wave in the case of acousto-optic diffraction on the longitudinal acoustic wave in fused silica  / O. Krupych, I. Martynyuk-Lototska, I. Orykhivskyi, M. Kostyrko, R. Vlokh // Ukrainian Journal of Physical Optics. – 2021. – Vol. 22 (1). – P. 61–67.

In 2019 Ivan Orykhivskyi graduated from the Faculty of Physics of Ivan Franko University of Lviv. He has received full higher education in the speciality of “Applied Physics and Nanomaterials” and got a Master’s degree (Bachelor degree in speciality of “Applied Physics”, qualification — Bachelor of Physics, Teacher of Physics (2018)).

From September 2020 to June 2022 he is a Postgraduate Student of the Department of General Physics. The thesis is “Piezo-optics, acousto-optics and exchange of the beams momentum in the low-symmetry crystals”. Professor V.Yo. Stadnyk is a supervisor of his thesis.

He is an author of 4 articles.