Research projects conducted at the Physical optics chair

  • Nonlinear optics of waveguide photosensitive films and optically induced dissipative structures near an interface of media.

    Principal results of the research:

    • It has been demonstrated that computer modeling can be used for researching laser-induced gratings in photosensitive waveguide films by computational reproducing of evolution of small-angle diffraction patterns and by analyzing the pattern parameters.
    • Researching the phenomenon of photoinduced thermal lense oscillations proves existence of particular gravitational-capillary and thermocapillary thresholds when inducing subsurface convective flows by localized heating of a liquid by a focused laser beam.
    • Under thermodynamically non-equilibrium conditions of laser thermocapillary capturing of a gas bubble in a light absorbing liquid, there is a frequency shift for the laser beam passed through the bubble. Movement of the observed interference pattern is treated as manifestation of a classical Doppler effect at presence of so-called stimulated Doppler effect and possibly a photon recoil effect.

    Principal results are stated in these publications:

    • Modelling of a diffraction pattern from light-induced gratings in AgCl-Ag waveguide film as a method of evaluation of the grating parameters, Yevhen Makovetskyi, Functional Materials, 2020, v.27(3), p.567-574. https://doi.org/10.15407/fm27.03.567
    • Two modes of near-surface convective flows threhold at thermal lens oscillations, Anna Bielova, Valentyn Lymar, Yevhen Makovetskyi, in Proceedings of OSA Nonlinear Optics 2021, R. Boyd, C. Conti, D. Christodoulides, and P. Rakich, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper NW2B.7. https://doi.org/10.1364/NLO.2021.NW2B.7
    • Classical and stimulated Doppler effects and the recoil effect on a moving media interface, Valentyn Lymar, Yevhen Makovetskyi, Roman Ovsiannikov, Tetiana Sarii, in Book of Extended Abstracts of XIII Laser-light and Interactions with Particles Conference, Aug. 22-26, 2022, Warsaw, Poland, paper BS-3. https://lip-conference.org/previous_editions/LIP2022/abstracts/Book_of_Abstracts_LIP2022.pdf
    • Transmitted wave frequency shift on a moving media interface: between the Doppler and the photon recoil effects, Lymar Valentyn, Makovetskyi Yevhen, Vovk Ruslan, in Proceedings of JSAP-Optica Joint Symposia 2024 Abstracts, Sept. 16-20, 2024, Niigata, Japan (Optica Publishing Group, 2024), paper 19p_C43_13. https://doi.org/10.1364/JSAPO.2024.19p_C43_13

  • Optics of nanoscale metal films.

    Principal results of the research:

    • Plasma resonance in granular solid-phase films on transparent dielectric substrates of melted quartz has been researched under p-polarized light. During the research, two plasma resonance bands were found. It has been shown that the first band is created by large granules separated by quite large distances. The second band is caused by dipole-dipole interaction between small granules.

    Principal results are stated in these publications:

    • M.O.Makarovsky, O.M.Savchenko Peculiarities Of Teaching Physics And Astronomy At The Faculty Of Physics In The Conditions Of Distance Learning // Journal of V. N. Karazin Kharkiv National University. Series Physics. — 2024. — Iss. 40. — p.7—12.
    • Iuliia Riabenko, Sergey Shulga, Nikolai ภ. Makarovskii, Konstantin Beloshenko Permittivity Model Selection Based on Size and Quantum-Size Effects in Gold Films // East European Journal of Physics, 2023. — 3. — p.406—412.

  • Spectral properties of metamaterials.

    Principal results of the research:

    • It has been proven that there is a possibility of creating a left-handed material based on ferromagnetic and semiconductor elements (of memristor type — าณฮ2) with ultrashort relaxation times.
    • Anomally large amplification of Faraday effect has been numerically obtained at oblique incidence of electromagnetic wave of infrared range on a structured film of yttrium iron garnet deposited on a quartz substrate.
    • Physical foundations were developed for creating effective signal transformers from the microwave range to the optical one (and backwards) for use in the field of quantum technologies.

    Principal results are stated in these publications:

    • Electronically controlled left-handed metamaterial based on memristor/ferrite multilayer at microwaves, Aleksey Girich, Sinan Kazan, Bulat Rameev, and Sergey Tarapov, Appl. Phys. Lett., 2024, 125, 011701(1-6). https://doi.org/10.1063/5.0204174
    • Enhancement of the microwave photon-magnon coupling strength for a planar fabricated resonator, Aleksey Girich, Sergiy Nedukh, Sergey Polevoy, Kateryna Sova, Sergey Tarapov, Arthur Vakula, Scientific Reports, 2023, 13, p.924(1-8). https://doi.org/10.1038/s41598-022-27285-6, https://www.nature.com/articles/s41598-022-27285-6
    • Enhancement of photon-magnon coupling strength by inverted split-ring resonator at GHz, A. Girich, S. Nedukh, S. Polevoy, K.Sova, S.Tarapov, A. Vakula, AIP Advances, 2024, v.14(2), p.025138(1-6). https://doi.org/10.1063/5.0187796
    • Existence of edge modes in periodic microstrip transmission line, Aleksey Girich, Liubov Ivzhenko, Ganna Kharchenko, Sergey Polevoy, Sergey Tarapov, Maciej Krawczyk & Jaroslaw W. Klos, Scientifc Reports, 2024, 14:16477(1-11). https://doi.org/10.1038/s41598-024-67610-9