Dr. Vitold E. Pozhar Profile

Dr. Vitold E. Pozhar

Chief of Department at STC Unique Instrumentation RAS

SPIE Involvement:

Author

Publications (28)

Proceedings Article | 20 June 2021 Presentation + Paper

On inherent spatio-spectral image distortion in AOTF-based imagers

Grigoriy Martynov, Alexey Gorevoy, Alexander Machikhin, Vitold Pozhar

Proceedings Volume 11782, 1178219 (2021) https://doi.org/10.1117/12.2592557

KEYWORDS: Image transmission, Ultrasonography, Imaging systems, Distortion, Hyperspectral systems, Digital imaging, Visualization, Image filtering, Crystals, Collimation

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Proceedings Article | 12 June 2020 Paper

Improved optical design of AOTF-based stereoscopic system for 3D imaging spectroscopy

Vladislav Batshev, Alexander Naumov, Vitold Ed. Pozhar

Proceedings Volume 11519, 1151913 (2020) https://doi.org/10.1117/12.2573943

KEYWORDS: Imaging systems, Imaging spectroscopy, Stereoscopy, Acousto-optics, 3D image processing, Optical design, Image quality, Spectroscopy, 3D image reconstruction

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Proceedings Article | 12 June 2020 Paper

Processing of three-wavelength interference pattern for single-shot quantitative phase imaging

Alexander Machikhin, Olga Polschikova, Alina Vlasova, Vitold Ed. Pozhar

Proceedings Volume 11519, 1151912 (2020) https://doi.org/10.1117/12.2573907

KEYWORDS: RGB color model, Phase imaging, Multiplexing, Digital holography, Optical filters, Imaging systems, Image sensors, Interferometers, Acousto-optics

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Proceedings Article | 18 December 2019 Paper

Development of dual-channel AOTF-based system for 3D imaging spectroscopy

Alexander Machikhin, Vladislav Batshev, Vitold Pozhar, Mikhail Mazur, Alexander Naumov, Alexey Gorevoy

Proceedings Volume 11208, 1120857 (2019) https://doi.org/10.1117/12.2540886

KEYWORDS: Imaging systems, Imaging spectroscopy, Stereoscopy, Calibration, Acousto-optics, Distortion, 3D metrology, Spectroscopes, Spectroscopy

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Proceedings Article | 11 November 2019 Paper

Endoscopic spectral imagers based on acousto-optic filtration of light

Demid D. Khokhlov, Alexander Machikhin, Vladislav Batshev, Alexey Gorevoy, Vitold Pozhar

Proceedings Volume 11210, 112100D (2019) https://doi.org/10.1117/12.2540980

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Proceedings Article | 3 October 2019 Paper

Hyperspectral quantitative phase imaging using lens-in-lens common-path interferometer

Alexander Machikhin, Olga Polshchikova, Alina Vlasova, Vitold Pozhar

Proceedings Volume 11207, 112070E (2019) https://doi.org/10.1117/12.2526529

KEYWORDS: Interferometers, Phase imaging, Microscopes, Hyperspectral imaging, Acousto-optics, Diffraction gratings, Lenses, Refractive index, Molybdenum, Optical components

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Proceedings Article | 26 April 2019 Paper

Analysis of transfer function dependence on configuration of acousto-optic interaction in uniaxial crystals

Anastasiya Yablokova, Alexander Machikhin, Vladislav Batshev, Vitold Pozhar, Sergey Boritko

Proceedings Volume 11032, 1103215 (2019) https://doi.org/10.1117/12.2520803

KEYWORDS: Acousto-optics, Crystals, Acoustics, Diffraction, Refractive index, Ultrasonography, Tunable filters, Ultrasonics, Birefringence, Analytical research

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Proceedings Article | 23 April 2019 Paper

A compact system for multispectral quantitative phase imaging based on a lens-in-lens common-path interferometer

Olga Polschikova, Alexander Machikhin, Alina Ramazanova, Vitold Pozhar

Proceedings Volume 11030, 1103005 (2019) https://doi.org/10.1117/12.2520647

KEYWORDS: Interferometers, Digital holography, Phase imaging, Holograms, Blood, Lenses, Imaging systems

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Proceedings Article | 14 April 2019 Paper

Differential spectral optical sensing

V. Pozhar, S. Boritko, A. Karandin

Proceedings Volume 11028, 1102825 (2019) https://doi.org/10.1117/12.2521010

KEYWORDS: Modulation, Spectroscopy, Acoustics, Acousto-optics, Phase shift keying, Crystals, Phase modulation, Optical sensing, Photodetectors, Diffraction

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Proceedings Article | 14 November 2018 Paper

Comparison of two modes of Bragg diffraction on broadband ultrasound

V. Pozhar, M. Mazur, A. Machikhin

Proceedings Volume 10815, 108151I (2018) https://doi.org/10.1117/12.2502414

KEYWORDS: Spectrometers, Frequency modulation, Diffraction, Bragg gratings, Acoustics, Spectral resolution, Tunable filters, Optical filters, Ultrasonics

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Proceedings Article | 5 November 2018 Paper

Acousto-optical tunable filter for a swept light source with variable transmission function

Alexander Machikhin, Demid Khokhlov, Vitold Pozhar, Alexey Kozlov, Vladislav Batshev, Alexey Gorevoy

Proceedings Volume 10815, 108150L (2018) https://doi.org/10.1117/12.2502756

KEYWORDS: Light sources, Acousto-optics, Acoustics, Tunable filters, Frequency modulation, Spectroscopy, Optical filters, Polarizers, Diffraction gratings, Ultrasonics

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Proceedings Article | 26 April 2018 Paper

Amplitude and phase measurements based on low-coherence interferometry with acousto-optic spectral image filtration

Alexander Machikhin, Ludmila Burmak, Vitold Pozhar

Proceedings Volume 10717, 107170H (2018) https://doi.org/10.1117/12.2315488

KEYWORDS: Acousto-optics, Phase measurement, Microscopy, Interferometry

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Proceedings Article | 7 December 2017 Paper

AOTF-based optical system of a microscope module for multispectral imaging techniques

Olga Polschikova, Alexander Machikhin, Vladislav Batshev, Alina Ramazanova, Artyom Belov, Vitold Pozhar

Proceedings Volume 10592, 105920H (2017) https://doi.org/10.1117/12.2297614

KEYWORDS: Microscopes, Imaging systems, Objectives, Cameras, Microscopy, RGB color model, Multispectral imaging, Visualization, Adaptive optics, Imaging spectroscopy

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Proceedings Article | 7 December 2017 Paper

Conjugation of fiber-coupled wide-band light sources and acousto-optical spectral elements

Alexander Machikhin, Vladislav Batshev, Olga Polschikova, Demid Khokhlov, Vitold Pozhar, Alexey Gorevoy

Proceedings Volume 10592, 105920I (2017) https://doi.org/10.1117/12.2297608

KEYWORDS: Endoscopes, Light sources, Endoscopy, Imaging systems, Imaging spectroscopy, Image sensors, Geometrical optics, Inspection

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Proceedings Article | 30 November 2017 Paper

Design of an optical system for coupling a wideband light source with an acousto-optical tunable filter

Vladislav Batshev, Alexander Machikhin, Vitold Pozhar, Demid Khokhlov

Proceedings Volume 10466, 1046639 (2017) https://doi.org/10.1117/12.2286647

KEYWORDS: Optical design, Light sources, Tunable filters, Acousto-optics

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Proceedings Article | 30 November 2017 Paper

Acousto-optical imaging spectrometer for unmanned aerial vehicles

M. Gaponov, A. Machikhin , V. Pozhar, A. Shurygin

Proceedings Volume 10466, 104661V (2017) https://doi.org/10.1117/12.2288303

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Proceedings Article | 19 March 2015 Paper

Imaging-AOTF-based full-field spectral-domain optical coherence tomography

Alexander Machikhin, Alexander Viskovatykh, Vitold Pozhar, Ludmila Burmak

Proceedings Volume 9448, 94481B (2015) https://doi.org/10.1117/12.2179983

KEYWORDS: Optical coherence tomography, Mirrors, Image registration, Acousto-optics, Tunable filters, Diffraction, Ultrasonography, Light sources, Coherence (optics), Biomedical optics

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Proceedings Article | 17 October 2013 Paper

The principle of fragmentary spectrum registration for acousto-optical spectrometers based on differential optical absorption spectroscopy

A. Fadeyev, Vitold Pozhar, V. Pustovoit

Proceedings Volume 8890, 88900H (2013) https://doi.org/10.1117/12.2029128

KEYWORDS: Acousto-optics, Spectrometers, Time metrology, Absorption, Image registration, Absorption spectroscopy, Quantitative analysis, Error analysis, Numerical simulations, Statistical analysis

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Proceedings Article | 1 November 2012 Paper

Application of independent component analysis method in real-time spectral analysis of gaseous mixtures for acousto-optical spectrometers based on differential optical absorption spectroscopy

A. Fadeyev, V. Pozhar

Proceedings Volume 8535, 85350C (2012) https://doi.org/10.1117/12.974426

KEYWORDS: Independent component analysis, Spectrometers, Adaptive optics, Statistical analysis, Algorithm development, Absorption spectroscopy, Acousto-optics, Databases, Image registration, Error analysis

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Proceedings Article | 27 May 2011 Paper

Optimization of measuring and calibration procedures for gas analyser based on acousto-optical tunable filters

A. Fadeyev, V. Pozhar

Proceedings Volume 8082, 808242 (2011) https://doi.org/10.1117/12.889383

KEYWORDS: Calibration, Spectrometers, Absorption, Tunable filters, Time metrology, Algorithm development, Statistical analysis, NOx, Sulfur, Software development

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Proceedings Article | 29 September 2005 Paper

Spectrogram correction problem in AOTF-spectroscopy

V. Pozhar, N. Lopukhov, V. Pustovoit

Proceedings Volume 5953, 59530Y (2005) https://doi.org/10.1117/12.623320

KEYWORDS: Spectrometers, Acoustics, Fourier transforms, Reconstruction algorithms, Acousto-optics, Absorption, Tunable filters, Remote sensing, Biological research, Imaging spectroscopy

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Proceedings Article | 29 September 2005 Paper

Double-AOTF spectral imaging system

V. Pustovoit, V. Pozhar, M. Mazur, V. Shorin, I. Kutuza, A. Perchik

Proceedings Volume 5953, 59530P (2005) https://doi.org/10.1117/12.623173

KEYWORDS: Monochromators, Imaging spectroscopy, Imaging systems, Visualization, Statistical analysis, Visible radiation, Microscopes, Blood, Near infrared, Tunable filters

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Proceedings Article | 1 June 2005 Paper

AOTF spectrometer for real-time differential spectroscopy

V. Pozhar, V. Pustovoit

Proceedings Volume 5806, (2005) https://doi.org/10.1117/12.604834

KEYWORDS: Spectroscopy, Acoustics, Crystals, Phase modulation, Modulation, Adaptive optics, Acousto-optics, Phase shift keying, Spectroscopes, Ultrasonography

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Proceedings Article | 14 October 2003 Paper

AOTF-based imaging spectrometer for research of small-size biological objects

Igor Kutuza, Vitold Pozhar, Vladislav Pustovoit

Proceedings Volume 5143, (2003) https://doi.org/10.1117/12.500528

KEYWORDS: Spectroscopy, Biological research, Monochromators, Luminescence, Imaging spectroscopy, Optical properties, Spectroscopes, Acousto-optics, Biology, Medicine

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Proceedings Article | 7 February 2002 Paper

Long-path optical spectral AOTF-based gas analyzer

Vitold Pozhar, Vladislav Pustovoit

Proceedings Volume 4574, (2002) https://doi.org/10.1117/12.455156

KEYWORDS: Spectroscopy, Retroreflectors, Diffraction gratings, Absorption, Absorption spectroscopy, Signal processing, Signal detection, Interferometers, Distance measurement, Tunable filters

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Proceedings Article | 28 September 1999 Paper

New DOAS technique based on acousto-optic spectrometer

Vitold Pozhar, Vladislav Pustovoit

Proceedings Volume 3818, (1999) https://doi.org/10.1117/12.364162

KEYWORDS: Spectroscopy, Absorption, Acousto-optics, Ultraviolet radiation, Statistical analysis, Error analysis, Time metrology, Chromium, Adaptive optics, Optimization (mathematics)

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Proceedings Article | 24 September 1999 Paper

Acousto-optic spectrometers for Earth remote sensing

Vladislav Pustovoit, Vitold Pozhar

Proceedings Volume 3750, (1999) https://doi.org/10.1117/12.363518

KEYWORDS: Spectrometers, Acousto-optics, Remote sensing, Satellites, Visible radiation, Adaptive optics, Diffraction, Crystals, Chemical analysis, Ocean optics

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Proceedings Article | 12 November 1993 Paper

Acousto-optical spectrometer for air pollution monitoring

Ch. Gazarov, Vitold Pozhar, V. Zhogun

Proceedings Volume 2107, (1993) https://doi.org/10.1117/12.162145

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Showing 5 of 28 publications

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