Oksana Mys

Lviv University

*This is an algorithmically generated author record based on publicly available information.

See Latest Publications

See Most Cited Publications

ORCID Profile

Google Scholar

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Lviv University

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years

Vlokh Institute of Physical Optics

Research Subjects

Research Interests

Oksana Mys has a total of 79 co-authors. Here are the top co-authors by number of shared publications:

Rostyslav Vlokh
Ivan Franko National University of Lviv
37 shared publications
Iryna Martynyuk-Lototska
O. G. Vlokh Institute of Physical Optics
30 shared publications
Oleh Krupych
Ivan Franko National University of Lviv
21 shared publications
R. Vlokh
Institute of Physical
12 shared publications
Alexander A. Grabar
Uzhhorod National University
11 shared publications
R Vlokh
Vlokh Inst Phys Opt, 23 Dragomanov St, UA-79005 Lvov, Ukraine
9 shared publications

Latest Publications

Sort by

Website
Google Scholar
- 10 November 2027
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
ENERGY-EFFICIENCY COMPARISON OF ELECTRIC- AND MAGNETIC-FIELD ENHANCEMENT OF ACOUSTO-OPTIC DIFFRACTION IN PbMoO ₄ CRYSTALS
by O Mys, M Kostyrko, I Skab, R Vlokh
Website
Google Scholar
- 10 November 2027
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
ENERGY-EFFICIENCY COMPARISON OF ELECTRIC- AND MAGNETIC-FIELD ENHANCEMENT OF ACOUSTO-OPTIC DIFFRACTION IN PbMoO ₄ CRYSTALS
by O Mys, M Kostyrko, I Skab, R Vlokh
Website
Google Scholar
- 10 June 2026
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
SYMMETRY-TENSORIAL ANALYSIS OF THE ELECTRO-ELASTIC EFFECT IN CRYSTALS: COMPARING SIMILARITIES AND DIFFERENCES WITH THE POCKELS EFFECT
by O Mys, Yu Vasylkiv, R Vlokh
Website
Google Scholar
- 10 June 2026
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
SYMMETRY-TENSORIAL ANALYSIS OF THE ELECTRO-ELASTIC EFFECT IN CRYSTALS: COMPARING SIMILARITIES AND DIFFERENCES WITH THE POCKELS EFFECT
by O Mys, Yu Vasylkiv, R Vlokh
Website
Google Scholar
- 31 March 2026
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
COMPOSITE VORTEX BEAMS CREATED USING A SANDWICH CRYSTALLINE SYSTEM. THREE CONSEQUENTLY SET CRYSTALS
by Yu Vasylkiv, D Adamenko, A Say, O Mys, O Krupych, I Skab, R Vlokh
Website
Google Scholar
- 31 March 2026
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
COMPOSITE VORTEX BEAMS CREATED USING A SANDWICH CRYSTALLINE SYSTEM. THREE CONSEQUENTLY SET CRYSTALS
by Yu Vasylkiv, D Adamenko, A Say, O Mys, O Krupych, I Skab, R Vlokh
Website
Google Scholar
Cited by 6
- 19 November 2018
- Published by Taylor & Francis in Phase Transitions
Anisotropy of acoustic and thermal expansion properties of TlInSe₂ crystals
by I. Martynyuk-Lototska, O. Mys, A. Say, I. Trach, D. Adamenko, O. O. Gomonnai, I. Roman, R. Vlokh
Based on experimental studies of acoustic wave velocities in TlInSe₂ crystals, all components of their elastic stiffness and compliance tensors are determined. TlInSe₂ has three acoustic axes parallel to the principal crystallographic directions. The lowest velocities of acoustic eigenwaves are used to estimate the acousto-optic figure of merit. We analyse deviations from purely longitudinal and transverse polarization states, as well as the obliquity of acoustic energy flow. Temperature dependences of strains along the three principal crystallographic directions and of acoustic wave velocities v₁₁, v₂₂ and v₃₃ are measured. Anomalous behaviour of these parameters occur at T₁ $C_{11} = C_{33}$ 245 K and T₂ $C_{12} = C_{13}$ 145 K. It is shown that the symmetry of TlInSe₂ becomes lower than tetragonal below the temperature point T₁.
Website
Google Scholar
- 19 November 2018
- Published by Taylor & Francis in Phase Transitions
Anisotropy of acoustic and thermal expansion properties of TlInSe₂ crystals
by I. Martynyuk-Lototska, O. Mys, A. Say, I. Trach, D. Adamenko, O. O. Gomonnai, I. Roman, R. Vlokh
Based on experimental studies of acoustic wave velocities in TlInSe₂ crystals, all components of their elastic stiffness and compliance tensors are determined. TlInSe₂ has three acoustic axes parallel to the principal crystallographic directions. The lowest velocities of acoustic eigenwaves are used to estimate the acousto-optic figure of merit. We analyse deviations from purely longitudinal and transverse polarization states, as well as the obliquity of acoustic energy flow. Temperature dependences of strains along the three principal crystallographic directions and of acoustic wave velocities v₁₁, v₂₂ and v₃₃ are measured. Anomalous behaviour of these parameters occur at T₁ $C_{11} = C_{33}$ 245 K and T₂ $C_{12} = C_{13}$ 145 K. It is shown that the symmetry of TlInSe₂ becomes lower than tetragonal below the temperature point T₁.
Cited by 6
Website
Google Scholar
Cited by 5
- 1 November 2018
- Published by European Acoustics Association in Acta Acustica united with Acustica
Acoustic and Elastic Anisotropies of Acoustooptic Tl₃PSe₄ Crystals
by Iryna Martynyuk-Lototska, Ivan Roman, Oleksandr Gomonnai, Taras Kryvyy, Oksana Mys, Rostyslav Vlokh
We report on ultrasonic and elastic properties of acoustooptic (AO) Tl₃PSe₄ crystals. Acoustic wave (AW) velocities for different geometries are obtained experimentally, and complete matrices of elastic stiffness and compliance coefficients are computed. Anisotropy of AW propagation is analyzed. The minimal AW velocities are as follows: (i) 1902 m/s for the quasilongitudinal wave propagating at the angle 52 deg with respect to a axis in ab plane, (ii) 983 m/s for the quasitransverse wave QT1 propagating in cb plane along the bisector of b and c axes, and (iii) 526 m/s for the quasitransverse wave QT2 propagating along a (or b) axis. The geometries of AO interactions with the slowest acoustic eigenwaves are analyzed. Finally, AO figures of merit M ₂ are roughly estimated for the cases of interactions with the slowest AWs. Within isotropic approximation for the elastooptic tensor they are equal to ∼ 1950 · 10^–15 s³/kg and ∼ 2800 · 10^–15 s³/kg at the isotropic interactions with the slowest quasilongitudinal wave and the slowest AW QT1, respectively. The M ₂ parameter as high as ∼ 18800 · 10^–15 s³/kg can be expected for the case of anisotropic AO interaction with the slowest AW QT2.
Website
Google Scholar
- 1 November 2018
- Published by European Acoustics Association in Acta Acustica united with Acustica
Acoustic and Elastic Anisotropies of Acoustooptic Tl₃PSe₄ Crystals
by Iryna Martynyuk-Lototska, Ivan Roman, Oleksandr Gomonnai, Taras Kryvyy, Oksana Mys, Rostyslav Vlokh
We report on ultrasonic and elastic properties of acoustooptic (AO) Tl₃PSe₄ crystals. Acoustic wave (AW) velocities for different geometries are obtained experimentally, and complete matrices of elastic stiffness and compliance coefficients are computed. Anisotropy of AW propagation is analyzed. The minimal AW velocities are as follows: (i) 1902 m/s for the quasilongitudinal wave propagating at the angle 52 deg with respect to a axis in ab plane, (ii) 983 m/s for the quasitransverse wave QT1 propagating in cb plane along the bisector of b and c axes, and (iii) 526 m/s for the quasitransverse wave QT2 propagating along a (or b) axis. The geometries of AO interactions with the slowest acoustic eigenwaves are analyzed. Finally, AO figures of merit M ₂ are roughly estimated for the cases of interactions with the slowest AWs. Within isotropic approximation for the elastooptic tensor they are equal to ∼ 1950 · 10^–15 s³/kg and ∼ 2800 · 10^–15 s³/kg at the isotropic interactions with the slowest quasilongitudinal wave and the slowest AW QT1, respectively. The M ₂ parameter as high as ∼ 18800 · 10^–15 s³/kg can be expected for the case of anisotropic AO interaction with the slowest AW QT2.
Cited by 5
Website
Google Scholar
Cited by 9
- 26 September 2018
- Published by Optica Publishing Group in Applied Optics
Effect of deviation from purely transverse and longitudinal polarization states of acoustic waves on the anisotropy of acousto-optic figure of merit: the case of Tl₃AsS₄ crystals
by Oksana Mys, Dmitro Adamenko, Oleg Krupych, Rostyslav Vlokh
We analyze the effect of acoustic wave (AW) polarization states deviation from purely longitudinal and transverse on the anisotropy of the acousto-optic (AO) figure of merit for the case of AO interactions occurring in the principal crystallographic planes. In particular, we obtain phenomenological relations that describe the effective elasto-optic coefficient for the six types of AO interactions, which exhaust all of the possible isotropic AO diffractions. These relations are compared for the alternative cases when the deviations of polarization of the AWs from purely longitudinal and transverse ones are either taken into consideration or completely neglected. Our analysis carried out on the example of ${Tl}_{3} As S_{4}$ crystals reveals that the deviation of AW polarization from its pure states influences the anisotropy of the AO figure of merit only when the AO interactions with quasi-transverse AWs are dealt with. This fact is caused by the peculiar acoustic and elasto-optic properties of ${Tl}_{3} As S_{4}$ . On the other hand, the situation can become different for other crystalline materials, where the angular dependences of the AO figure of merit can differ significantly in cases in which the deviation angle increases. This holds true for the AO interactions with both quasi-transverse and quasi-longitudinal AWs. Under these conditions, non-orthogonality of the AWs (or deviation from their longitudinal polarization states) affects essentially the AO characteristics. Finally, we determine the geometries of AO interactions for which the highest AO figures of merit are reached for the ${Tl}_{3} As S_{4}$ crystals.
Website
Google Scholar
- 26 September 2018
- Published by Optica Publishing Group in Applied Optics
Effect of deviation from purely transverse and longitudinal polarization states of acoustic waves on the anisotropy of acousto-optic figure of merit: the case of Tl₃AsS₄ crystals
by Oksana Mys, Dmitro Adamenko, Oleg Krupych, Rostyslav Vlokh
We analyze the effect of acoustic wave (AW) polarization states deviation from purely longitudinal and transverse on the anisotropy of the acousto-optic (AO) figure of merit for the case of AO interactions occurring in the principal crystallographic planes. In particular, we obtain phenomenological relations that describe the effective elasto-optic coefficient for the six types of AO interactions, which exhaust all of the possible isotropic AO diffractions. These relations are compared for the alternative cases when the deviations of polarization of the AWs from purely longitudinal and transverse ones are either taken into consideration or completely neglected. Our analysis carried out on the example of ${Tl}_{3} As S_{4}$ crystals reveals that the deviation of AW polarization from its pure states influences the anisotropy of the AO figure of merit only when the AO interactions with quasi-transverse AWs are dealt with. This fact is caused by the peculiar acoustic and elasto-optic properties of ${Tl}_{3} As S_{4}$ . On the other hand, the situation can become different for other crystalline materials, where the angular dependences of the AO figure of merit can differ significantly in cases in which the deviation angle increases. This holds true for the AO interactions with both quasi-transverse and quasi-longitudinal AWs. Under these conditions, non-orthogonality of the AWs (or deviation from their longitudinal polarization states) affects essentially the AO characteristics. Finally, we determine the geometries of AO interactions for which the highest AO figures of merit are reached for the ${Tl}_{3} As S_{4}$ crystals.
Cited by 9
Website
Google Scholar
Cited by 21
- 7 May 2018
- Published by Optica Publishing Group in Applied Optics
Piezo-, elasto- and acousto-optic properties of Tl₃AsS₄ crystals
by Bohdan Mytsyk, Taras Kryvyy, Natalya Demyanyshyn, Oksana Mys, Iryna Martynyuk-Lototska, Oleksandr Kokhan, Rostyslav Vlokh
Complete matrices of piezo-optic and elasto-optic tensors are experimentally determined for ${Tl}_{3} As S_{4}$ crystals. It is revealed that the piezo-optic coefficients are very high, $\sim 10^{- 11} N / m^{2}$ in the order of magnitude. This implies that ${Tl}_{3} As S_{4}$ can be referred to the best piezo-optic materials. The same concerns the elasto-optic coefficients, of which absolute values are in the interval 0.28–0.54. It is also found that, at the anisotropic and isotropic interactions with the slowest transverse and longitudinal acoustic waves, the acousto-optic figure of merit reaches extremely high values ( $1.99 \times 10^{- 12} s^{3} / kg$ and $9.45 \times 10^{- 13} s^{3} / kg$ , respectively). In other words, the ${Tl}_{3} As S_{4}$ crystals can be referred to as one of the best acousto-optic materials for the visible and infrared spectral ranges.
Website
Google Scholar
- 7 May 2018
- Published by Optica Publishing Group in Applied Optics
Piezo-, elasto- and acousto-optic properties of Tl₃AsS₄ crystals
by Bohdan Mytsyk, Taras Kryvyy, Natalya Demyanyshyn, Oksana Mys, Iryna Martynyuk-Lototska, Oleksandr Kokhan, Rostyslav Vlokh
Complete matrices of piezo-optic and elasto-optic tensors are experimentally determined for ${Tl}_{3} As S_{4}$ crystals. It is revealed that the piezo-optic coefficients are very high, $\sim 10^{- 11} N / m^{2}$ in the order of magnitude. This implies that ${Tl}_{3} As S_{4}$ can be referred to the best piezo-optic materials. The same concerns the elasto-optic coefficients, of which absolute values are in the interval 0.28–0.54. It is also found that, at the anisotropic and isotropic interactions with the slowest transverse and longitudinal acoustic waves, the acousto-optic figure of merit reaches extremely high values ( $1.99 \times 10^{- 12} s^{3} / kg$ and $9.45 \times 10^{- 13} s^{3} / kg$ , respectively). In other words, the ${Tl}_{3} As S_{4}$ crystals can be referred to as one of the best acousto-optic materials for the visible and infrared spectral ranges.
Cited by 21
Website
Google Scholar
Cited by 1
- 1 March 2018
- Published by Taylor & Francis in Journal of Modern Optics
Anisotropy of acousto–optic figure of merit in lithium tetraborate crystals
by Oksana Mys, Oleg Krupych, Rostyslav Vlokh
We analyse anisotropy of acousto–optic figure of merit (AOFM) for Li₂B₄O₇ crystals in order to estimate the prospects of these crystals in acousto–optics. We find that the maximal AOFM, 3.44 × 10⁻¹⁵ s³/kg, is peculiar for the isotropic acousto–optic interaction of the incident ordinary optical wave with the quasi-longitudinal acoustic wave. For the case of anisotropic diffraction in Li₂B₄O₇, the maximum 1.87 × 10⁻¹⁵ s³/kg can be reached using the interaction of the extraordinary optical wave with the quasi-longitudinal acoustic wave. The case of collinear diffraction is characterized by small AOFMs, with the largest value 0.26 × 10⁻¹⁵ s³/kg.
Website
Google Scholar
- 1 March 2018
- Published by Taylor & Francis in Journal of Modern Optics
Anisotropy of acousto–optic figure of merit in lithium tetraborate crystals
by Oksana Mys, Oleg Krupych, Rostyslav Vlokh
We analyse anisotropy of acousto–optic figure of merit (AOFM) for Li₂B₄O₇ crystals in order to estimate the prospects of these crystals in acousto–optics. We find that the maximal AOFM, 3.44 × 10⁻¹⁵ s³/kg, is peculiar for the isotropic acousto–optic interaction of the incident ordinary optical wave with the quasi-longitudinal acoustic wave. For the case of anisotropic diffraction in Li₂B₄O₇, the maximum 1.87 × 10⁻¹⁵ s³/kg can be reached using the interaction of the extraordinary optical wave with the quasi-longitudinal acoustic wave. The case of collinear diffraction is characterized by small AOFMs, with the largest value 0.26 × 10⁻¹⁵ s³/kg.
Cited by 1
Website
Google Scholar
Cited by 3
- 1 January 2018
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
Anisotropy of acousto-optic figure of merit in tetragonal crystals with accounting for non-orthogonality of acoustic eigenwave polarizations. 1. The cases of KH2PO4 and NH4H2PO4 crystals
by O Mys, M Kostyrko, D Adamenko, R Vlokh
Website
Google Scholar
- 1 January 2018
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
Anisotropy of acousto-optic figure of merit in tetragonal crystals with accounting for non-orthogonality of acoustic eigenwave polarizations. 1. The cases of KH2PO4 and NH4H2PO4 crystals
by O Mys, M Kostyrko, D Adamenko, R Vlokh
Cited by 3
Website
Google Scholar
- 1 January 2018
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
Anisotropy of acousto-optic figure of merit at the collinear acousto-optic diffraction in hexagonal CdS crystals
by O Mys, I Martynyuk-Lototska, D Adamenko, M Kostyrko, R Vlokh
Website
Google Scholar
- 1 January 2018
- Published by Institute of Physical Optics in Ukrainian Journal of Physical Optics
Anisotropy of acousto-optic figure of merit at the collinear acousto-optic diffraction in hexagonal CdS crystals
by O Mys, I Martynyuk-Lototska, D Adamenko, M Kostyrko, R Vlokh

Show all