Prof. Grygorij Semenovych Tymchyk Profile

Prof. Grygorij Semenovych Tymchyk

Dean - College of Instrument Design & Engg. at National Technical Univ of Ukraine

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 16 December 2024 Paper

Automated optical system of integrated photostimulation of the human nervous system

Gregory Tymchyk, Volodymyr Skytsiouk, Tatiana Klotchko, Victor Paliy, Zhanar Azhibekova, Olga Pinaieva, Róża Dzierżak, Alua Massimgaziyeva

Proceedings Volume 13400, 1340007 (2024) https://doi.org/10.1117/12.3054869

KEYWORDS: Eye, Integrated optics, Nervous system, Sensors, Photostimulation, System integration, Matrices, Laser radiation, Electromagnetism, Control systems

Read Abstract +

Proceedings Article | 20 December 2023 Paper

Optical method for monitoring the state of dynamic objects in the processing of materials

Gregory Tymchyk, Volodymyr Skytsiouk, Tatiana Klotchko, Volodymyr Sevastianov, Iryna Kobylianska, Zbigniew Omiotek, Saule Rakhmetulina, Saule Kumargazhanova

Proceedings Volume 12985, 1298509 (2023) https://doi.org/10.1117/12.3022751

KEYWORDS: Signal processing, Acoustooptics, Sensors, Telecommunications, Spectrum analyzers, Materials processing, Photodetectors, Charge-coupled devices, Bragg cells, Acoustics

Read Abstract +

Proceedings Article | 20 December 2023 Paper

Laboratory layout of a coherent optical spectrum analyzer

Mykyta Kolobrodov, Valentin Kolobrodov, Volodymyr Mykytenko, Grygoriy Tymchyk, Galyna Chernovolyk, Serhii Zahorodnii, Jacek Klimek, Aliya Kalizhanova, Ainur Kozbakova

Proceedings Volume 12985, 1298507 (2023) https://doi.org/10.1117/12.3023013

KEYWORDS: Matrices, Spatial light modulators, Digital cameras, Projection systems, Video, Image processing, Cameras, Signal processing, Tunable filters, Transparency

Read Abstract +

Proceedings Article | 12 December 2022 Paper

Forces balance in coordinate system of object’s existence 3D space

Gregory Tymchyk, Volodymyr Skytsiouk, Tatiana Klotchko, Leonid Polishchuk, Serhii Zahorodnii, Nurbapa Mekebayev, Konrad Gromaszek

Proceedings Volume 12476, 124760U (2022) https://doi.org/10.1117/12.2659188

KEYWORDS: Analytical research, Motion models, 3D modeling, Systems modeling, Motion analysis, Complex systems, Object recognition, Manufacturing, Biomimetics, Surgery

Read Abstract +

Proceedings Article | 12 June 2020 Paper

Relationship between the technique of integral equation and Kirchhoff approximation in scalar diffraction theory

Grygorij Tymchik, Maryna Filippova, Oleg Bezverkhyi, Waldemar Wójcik, Bakhyt Yeraliyeva, Aliya Kalizhanova, Karlygash Nurseitova

Proceedings Volume 11456, 114560A (2020) https://doi.org/10.1117/12.2569787

KEYWORDS: Scattering, Diffraction, Light scattering, Reflection, Fourier transforms, Mirrors, Statistical analysis, Reflectivity, Light sources, Metals

Read Abstract +

Proceedings Article | 12 June 2020 Paper

Technology of infrared radiation polarizer

Valentin Kolobrodov, Grygorij Tymchik, Volodymyr Mykytenko, Anatolii Kylivnyk, Ryszard Romaniuk, Piotr Kisała, Ainur Kozbakova, Bakhyt Yeraliyeva

Proceedings Volume 11456, 1145609 (2020) https://doi.org/10.1117/12.2569786

KEYWORDS: Polarization, Polarizers, Germanium, Infrared radiation, Reflection, Transmittance, Refraction, Dielectric polarization, Birefringence, Diffraction gratings

Read Abstract +

Proceedings Article | 12 June 2020 Paper

Design of multi-order diffractive intraocular lenses

Valentin Kolobrodov, Inna Vasylkovska, Grygorij Tymchyk, Nelia Burlaka, Andrzej Smolarz, Yedilkhan Amirgaliyev, Yerbol Turgynbekov, Ayaulym Oralbekova

Proceedings Volume 11456, 1145608 (2020) https://doi.org/10.1117/12.2569784

KEYWORDS: Intraocular lenses, Lens design, Chromatic aberrations, Diffraction, Image quality, Eye models, Eye, Refractive index

Read Abstract +

Proceedings Article | 6 February 2020 Paper

Increase of spatial resolution of the optical spectrum analyzer

V. Kolobrodov, G. Tymchik, M. Kolobrodov

Proceedings Volume 11369, 113690E (2020) https://doi.org/10.1117/12.2551636

Read Abstract +

Proceedings Article | 6 November 2019 Paper

Forming thermal imaging system field of view with afocal lens cap

Igor Chyzh, Valentin Kolobrodov, Volodymyr Mykytenko, Grygorij Tymchik, Paweł Komada, Ainur Kozbakova

Proceedings Volume 11176, 111760T (2019) https://doi.org/10.1117/12.2536830

KEYWORDS: Thermography, Mirrors, Vignetting, Zoom lenses, Imaging systems, Modulation transfer functions, Telescopes, Information technology, Infrared lenses, Lens design

Read Abstract +

Proceedings Article | 6 November 2019 Paper

Expansion of the operating spectral range of the optical processor

Valentin Kolobrodov, Grygorij Tymchyk, Mykyta Kolobrodov, Andrzej Kociubinski, Nataliya Denissova, Algazy Kunbolat

Proceedings Volume 11176, 1117607 (2019) https://doi.org/10.1117/12.2536247

KEYWORDS: Modulators, Diffraction, Spectrum analysis, Signal processing, Spatial frequencies, Sensors, Diffraction gratings, Optical signal processing, Fourier transforms, Point spread functions

Read Abstract +

Proceedings Article | 15 March 2019 Paper

Influence of the aberrations of Fourier-lens on the resolution of the digital optical processor

Valentin Kolobrodov, Grygorij Tymchyk, Mykyta Kolobrodov, Bogdan Pinchuk, Zbigniew Omiotek, Daniyar Jarykbassov, Nurbapa Mekebayev

Proceedings Volume 11045, 110450U (2019) https://doi.org/10.1117/12.2522310

KEYWORDS: Spectrum analysis, Diffraction, Spatial resolution, Signal processing, Spatial light modulators, Image resolution

Read Abstract +

Proceedings Article | 15 March 2019 Paper

Determination of the interaction of field structures in the presence area of abstract objects

Grygorij Tymchyk, Volodymyr Skytsiouk, Tatiana Klotchko, Paweł Komada, Akmaral Tleshova, Kanat Mussabekov

Proceedings Volume 11045, 110450Y (2019) https://doi.org/10.1117/12.2522366

KEYWORDS: Magnetism, Control systems, Acoustics, Analytical research, Electromagnetism, Resistance, Diagnostics, Data processing, Measurement devices, Organisms

Read Abstract +