Dr. Ivan I. Syniavskyi Profile

Dr. Ivan I. Syniavskyi

at Main Astronomical Observatory NAS of Ukraine

SPIE Involvement:

Author

Area of Expertise:

Design of Complex Optical Systems , Gas Analysis , Interferometry , Polarimetry

Websites:

Company Website | Personal Website

Experience in analysis, optimizations, tolerancing, specifications of optical systems; experience in the optical modeling with Zemax, TracePro tools; experience in the mechanical design of optical devices with AutoCad, SolidWorks; a bit experience in Finite Element Analysis (FIE) with ANSYS; experience of testing optical systems using goniometer, optical bench and other instruments; experience in assembling of optical systems ( FTIR for atmospheric measurement, fast lens, spectrometers, polarimeters and other optical devices).

Illumination systems for military devices; Optical, mechanical design and development series of the fast lens for digital X-ray diagnostically devices; Optical, mechanical design and development stereo photo lens; Optical design and development aspheric mirror entrance optics for FTIR ; Optical and mechanical design of the EDIPO polarimeter; Optical design and error budget estimate of the ZODIACS Instrument; Optical design of Imaging FTIR; Optical, mechanical design and development astrospectropolarimeters with lower resolution for spectral range 200-400 nm and 350-1000 nm (space experiment "Planetary monitoring");Design of wide field fast lens; Design of telescopes.

Proceedings Article | 11 November 2019 Paper

Acousto-optic spectrometer ISEM for ExoMars-2020 space mission: ground measurements and calibrations

Yury Dobrolenskiy, Sergey Mantsevich, Nadezhda Evdokimova, Oleg Korablev, Anna Fedorova, Yuri Kalinnikov, Nikita Vyazovetskiy, Andrei Titov, Alexander Stepanov, Alexander Sapgir, Ilya Dzyuban, Ruslan Kuzmin, Yuriy Ivanov, Ivan Syniavskyi, Vladislav Petrov, Vera Smol'yaninova, Alexander Dokuchaev

Proceedings Volume 11210, 112100F (2019) https://doi.org/10.1117/12.2540203

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Proceedings Article | 12 July 2019 Open Access

Optical design and modeling of satellite imaging spectrometer for atmosphere monitoring

Yury Dobrolenskiy, Ilya Dziuban, Yuriy Ivanov, Ivan Syniavskyi, Dmitry Ionov, Anatoly Poberovski, Oleg Korablev, Anna Fedorova, Nikita Vyazovetskiy

Proceedings Volume 11180, 1118065 (2019) https://doi.org/10.1117/12.2536140

KEYWORDS: Spectroscopy, Sensors, Ultraviolet radiation, Ozone, Mirrors, Calibration, Atmospheric monitoring, Atmospheric modeling, Diffraction gratings, Channel projecting optics

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Proceedings Article | 5 June 2018 Paper

Optical design of imaging spectrometer for atmosphere monitoring from near-Earth orbit

Yury Dobrolenskiy, Ilya Dziuban, Yuriy Ivanov, Ivan Syniavskyi, Dmitry Ionov, Anatoly Poberovsky, Oleg Korablev, Anna Fedorova, Nikita Vyazovetskiy

Proceedings Volume 10690, 1069029 (2018) https://doi.org/10.1117/12.2312021

KEYWORDS: Spectroscopy, Sensors, Ultraviolet radiation, Ozone, Mirrors, Calibration, Atmospheric monitoring, Diffraction gratings, Optical design, Imaging spectrometry, Hyperspectral imaging

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Proceedings Article | 17 November 2017 Open Access

High resolution middle infrared spectrometer, a part of atmospheric chemistry suite (ACS) for EXOMARS 2016 trace gas orbiter

Alexander Trokhimovskiy, Oleg Korablev, Yurii Ivanov, Ivan Syniavskyi, Franck Montmessin, Anna Fedorova

Proceedings Volume 10563, 105634L (2017) https://doi.org/10.1117/12.2304234

KEYWORDS: Diffraction gratings, Spectral resolution, Diffraction, Space operations, Spectroscopy, Infrared spectroscopy, Sensors, Interfaces, Atmospheric chemistry, Switches

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The Atmospheric Chemistry Suite (ACS) package is a part of Russian contribution to ExoMars ESARoscosmos mission for studies of the Martian atmosphere and climate. ACS consists of three separate infrared spectrometers, sharing common mechanical, electrical, and thermal interfaces. The mid-infrared (MIR) channel is a cross-dispersion high resolution echelle instrument dedicated to solar occultation measurements and sensitive studies of trace gases. The MIR channel is a spectrometer working in 2.3−4.2 μm spectral range, covering simultaneously up to almost 300 nm per exposure, targeting the resolving power of 50,000. A crossdispersion concept on echelle and ordinary diffraction grating allows acquisition of the wide wavelength domain at once. That provides a strategic advantage for maximizing the number of gaseous species detected simultaneously and good special resolution of measurements during fast occultation sessions. Moving the second grating allows to switch from one group of the diffraction orders to another prior to a series of measurements, or desired positions during one measurement sequence. The concept of the cross-dispersion echelle instrument, which is widely accepted in astronomy, has been already employed in planetary missions with VIRTIS-H instrument presently in flight on Rosetta and Venus Express missions.

Targeting very high spectral resolution the MIR channel operates in solar occultation only. A telescope with relative aperture of 1∶3 forms the image of the solar disk on the slit. The FOV is determined by the slit and it consists 0.1×2.9 mrad. The spectral resolution of the spectrometer is fully slit-limited, and the resolving power of λ/∆λ ≥ 50000 at 3.3 μm is supported. Two secondary cross-dispersion diffraction gratings (plain, 180 and 361 grooves per mm) are mounted back-to-back on a stepper motor to change observed echelle orders. We have chosen two secondary gratings philosophy to switch between them depending on the long or short wavelength range we are on. Changing the position of the secondary grating in angular steps of 1.8°, from 10 to 30 echelle orders are available for simultaneous record depending on the wavelength. 100 steps are evidently used to switch between gratings prior measurements. The full spectral range is covered on diffraction orders from 142 to 248. For each observation detector area is covered by 10 to 30 stripes, each corresponding to single echelle diffraction order. Given the complexity of the diffraction orders pattern, full detector frames will be transmitted to the ground, with lossless compression. However, the onboard averaging will be possible. Single data frame will be accumulated for 0.5 seconds, stacking of a number of shorter exposures.

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Proceedings Article | 1 September 2015 Paper

Middle-infrared echelle cross-dispersion spectrometer ACS-MIR for the ExoMars Trace Gas Orbiter

Alexander Trokhimovskiy, Oleg Korablev, Yuriy Ivanov, I. Siniyavsky, Anna Fedorova, Alexander Stepanov, Andrei Titov, Andrei Patrakeev, Pavel Moiseev, Tatiana Kozlova, Franck Montmessin

Proceedings Volume 9608, 960808 (2015) https://doi.org/10.1117/12.2190359

KEYWORDS: Diffraction gratings, Spectroscopy, Spectral resolution, Diffraction, Sensors, Space operations, Collimators, Mirrors, Electronics, Channel projecting optics

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