A. Melnikov

ORCID: 0000-0002-3318-9853
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About
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Research Areas
  • Advanced optical system design
  • Optical Coatings and Gratings
  • Optical Systems and Laser Technology
  • Calibration and Measurement Techniques
  • Adaptive optics and wavefront sensing
  • Advanced Optical Imaging Technologies
  • Electron and X-Ray Spectroscopy Techniques
  • Advanced Measurement and Metrology Techniques
  • Magnetic properties of thin films
  • Laser Design and Applications
  • Photonic and Optical Devices
  • Advanced Fluorescence Microscopy Techniques
  • Particle Detector Development and Performance
  • Nuclear Physics and Applications
  • Geotechnical and Geomechanical Engineering
  • Optical Wireless Communication Technologies
  • Advanced Theoretical and Applied Studies in Material Sciences and Geometry
  • Photorefractive and Nonlinear Optics
  • Atomic and Subatomic Physics Research
  • Optical Polarization and Ellipsometry
  • Advanced Data Storage Technologies
  • Advanced machining processes and optimization
  • Optical and Acousto-Optic Technologies
  • Mathematics and Applications
  • Crystallography and Radiation Phenomena

Institute of Applied Astronomy
2024

Russian Academy of Sciences
2024

Institute for Nuclear Research
2021-2023

Samara National Research University
2019

Deutsche Messe (Germany)
2019

Federal Scientific Research Centre Crystallography and Photonics
2019

Maksymilian Pluta Institute of Applied Optics
2007-2012

State Optical Institute named after SI Vavilov
2002-2007

Tomsk Polytechnic University
1975

This paper presents the successful application of a phase-lock feedback system to maintain resonance condition radio frequency (rf) spin rotator (specifically, an rf Wien filter) with respect 120 kHz precession in Cooler Synchrotron (COSY) storage ring. Real-time monitoring and filter signal allows relative phase between two be stabilized at arbitrary setpoint. The compensates for deviations by adjusting and/or as needed. With this method, variation demand standard deviation...

10.48550/arxiv.2501.19123 preprint EN arXiv (Cornell University) 2025-01-31

High-frequency driven resonant spin rotators are routinely used as standard instruments in polarization experiments particle and nuclear physics. Maintaining the continuous exact parametric resonance condition of equality rotator precession frequency during operation is one challenges. We present a detailed analytical description effects detuning on precessing vertical in-plane components polarization. An important part formalism presented here consideration experimentally relevant...

10.1103/physrevaccelbeams.27.111002 article EN cc-by Physical Review Accelerators and Beams 2024-11-19

Предложено решение проблемы прецизионного контроля взаиморасположения зеркал в центрированных трехзеркальных телескопах на основе использования осевых синтезированных голограммных оптических элементов (СГОЭ) как этапе сборки и юстировки телескопов, так ходе их эксплуатации для обеспечения регулярной подъюстировки.

10.22184/1993-7296.fros.2024.18.8.630.638 article RU Photonics Russia 2024-12-05

This study explores the possibility of using cloud infrastructure to deploy DiFX software correlator for creating a backup system in case emergencies. The proposed approach involves running on virtual servers provided by service, allowing reduction financial and time resources. is primary tool processing data obtained through Very Long Baseline Interferometry (VLBI). Running such provider will enable scaling correlation system. For experiment, automation tools Ansible (written Python)...

10.26119/vak2024.173 article EN 2024-12-27

This paper presents the results of a study possibility monitoring alignment two-mirror Cassegrain and Ritchey–Crétien telescopes during both fabrication operation under observatory conditions, as well in space. The method is based on system coaxial synthesized annular holograms optical compensators reference elements.

10.1364/jot.79.000167 article EN Journal of Optical Technology 2012-03-01

оптические устройства и системы Контроль зерКалаКонтррефлеКтора телесКопа "МиллиМетрон" на основе использования синтезированной голограММы А.В.Лукин, д. т.н., А.Н.Мельников, к. А.Ф.Скочилов, ф.-м.н., АО "НПО "Государственный институт прикладной оптики",

10.22184/1993-7296.2016.59.5.44.48 article RU Photonics Russia 2016-05-01

Subject of study. A novel approach for implementing technological and certification interferometric-accuracy shape control large-sized aspherical surfaces in monolithic composite mirrors using cylindrical axial compensator holograms generated by a computer is studied. The aim the study to develop comprehensive suite methods tools that utilize on-axis computer-generated holograms. This innovation aims overcome inherent limitations on size modern optical telescopes, enabling laser-holographic...

10.1364/jot.90.000517 article EN Journal of Optical Technology 2023-09-01

A basic optical layout of a laser interferometer with an aspherical holographic test glass is proposed. It was designed to monitor the shape operating convex hyperbolic surface secondary mirror inside space telescope Millimetron at cryogenic temperatures. The possibility practical implementation this technical solution demonstrated.

10.1364/jot.84.000212 article EN Journal of Optical Technology 2017-03-01

The monitoring of the assembly and alignment (positioning) elements segmented mirrors telescopes is proposed using axial synthesized holograms coherent properties laser radiation sources. By examining primary mirror Millimetron telescope, whose carbon-fiber-reinforced composite panels form four ring-shaped tiers, possibility detecting deviations each 24 identical same tier from set positions sign magnitude errors interposition neighboring tiers near places their “dockings” are...

10.1364/jot.84.000828 article EN Journal of Optical Technology 2017-12-01

Based on the use of axial computer-generated holograms system and coherent behavior laser radiation sources, it is proposed to control location alignment processes segments multiple mirrors used in hyper high-aperture superlarge optical telescopes. The possibilities identifying inaccuracy sign magnitude from given position each 24 identical panels one out four tiers, as well neighboring tier interposition at places their "coupling/attaching" were considered, based example solving a problem...

10.1117/12.2321169 article EN 2018-06-06

This paper discusses the possibility of constructing an imaging spectrograph using aberration-corrected holographic diffraction grating deposited on a convex surface. A projection objective is used as starting point for designing such optical layout. It shown that, when simplest triplet-type used, layout 400–700-nm visible range with relative aperture up to 1∶2.3 can be constructed that provides spectral resolution 2.9–7.7 nm operated slit 16 mm long....

10.1364/jot.86.000153 article EN Journal of Optical Technology 2019-03-01

The optical layout of a compact high-aperture spectrograph is calculated for an operating spectral range 400–800 nm, equivalent relative aperture 1:1.75, and resolution no more than 1.5 nm based on concave nonclassical ruled diffraction grating. current limitations ruling holographic technologies forming nonplanar gratings are considered, the fabrication such by precision replication proposed use polymer compositions with convex master obtained using pendulum-type engine.

10.1364/jot.86.000331 article EN Journal of Optical Technology 2019-06-01

A procedure for the design of optical schemes holographic displays is developed. The implies simultaneous optimization image quality factors and root-mean-square values hologram diffraction efficiency at control points. implemented level specific software tools utilized an example scheme a waveguide display. display operates within 480–620 nm spectral range has 10° angular field view exit pupil diameter 10 mm. input radiation into plate output are achieved using diffractive elements...

10.1364/jot.87.000650 article EN Journal of Optical Technology 2020-11-01

Using methods of physical material studies (scanning electron microscopy and micro X-ray spectral analysis), a study was carried out with focus on alteration structure phase composition in surface layers Al-Si alloy (silumin АК10М2N) treated electroexplosive alloying multiphase plasma jet formed the process aluminum foil explosion carrying particles Y 2 O 3 weighted powder portion.It revealed that porous layer non-homogeneously distributed elements (silicon, yttrium) it is any conditions...

10.24425/bpas.2019.128605 article EN cc-by-nc-nd Bulletin of the Polish Academy of Sciences Technical Sciences 2019-04-24

Principles for the design of pendulum-type ruling engines and their potential application fabrication non-classical ruled diffraction gratings with large apertures are considered. For spherical gratings, derivation analytical dependences determination geometrical shape curvilinear projections grooves, curvature radii, variable pitch is presented. Expressions coefficients first–third-order aberrations obtained.

10.1364/jot.88.000514 article EN Journal of Optical Technology 2021-09-01

Subject of study. The possibility using an optical system that includes two dichroic filters in a device for remote diagnostics the state high-voltage equipment and power lines was investigated. Aim A new circuit diagnosing with improved spectral characteristics obtaining images spectrum’s ultraviolet range, including Cassegrain-type mirror lens, filters, matrix photodetectors, developed. Method. It is based on ray calculation investigated optimized equipment. Computer modeling aberration...

10.1364/jot.90.000138 article EN Journal of Optical Technology 2023-03-01
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