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Злоказов, Евгений Юрьевич

Организационные подразделения

Организационная единица

Институт лазерных и плазменных технологий

Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.

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Злоказов

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Евгений Юрьевич

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Теперь показываю 1 - 10 из 19

Только метаданные
Lensless scheme of a holographic wavefront sensor
(2020) Krasin, G. K.; Stsepuro, G.; Kovalev, M. S.; Zlokazov, E. Y.; Злоказов, Евгений Юрьевич
A scheme of a compact holographic wavefront sensor based on combination of computer-generated hologram and computer-generated Fresnel lens is presented. This scheme allows optical aberration measurement with high precision. The presented optical scheme is tested and compared to a scheme with physical Fourier lens.
Только метаданные
Methods and algorithms for computer synthesis of holographic elements to obtain a complex impulse response of optical information processing systems based on modern spatial light modulators
(2020) Zlokazov, E. Y.; Злоказов, Евгений Юрьевич
© 2020 Kvantovaya Elektronika and Turpion Ltd.The possibilities of designing optical devices for data processing and imaging based on the manipulation of coherent light beams by means of spatial light modulators (SLMs) are investigated. A review of commercially available SLMs is presented and the limitations of their complex modulation characteristics are analysed. The main problem of using present-day SLMs is the lack of the ability to modulate directly all states within a unit circle in the complex plane. In this regard, the characteristics of current methods for the synthesis of holographic elements are described that implement a given complex impulse response of the optical system and are optimal for using SLMs with purely amplitude, purely phase, and hybrid amplitude-phase modulation.
Только метаданные
High-speed implementation of holographic and diffraction elements using digital micromirror devices
(2020) Evtikhiev, N. N.; Zlokazov, E. Y.; Krasnov, V. V.; Rodin, V. G.; Starikov, R. S.; Cheremkhin, P. A.; Евтихиев, Николай Николаевич; Злоказов, Евгений Юрьевич; Родин, Владислав Геннадьевич; Стариков, Ростислав Сергеевич; Черёмхин, Павел Аркадьевич
© 2020 Kvantovaya Elektronika and Turpion Ltd.We report the results of simulations and experiments on the formation of light distributions by holograms and diffraction elements displayed by digital micromirror devices. Examples of successful experiments on the implementation of optical-digital systems based on them are demonstrated.
Только метаданные
Features of the Implementation of Holographic Invariant Correlation Filters Based on a Phase Liquid-Crystal Space-Time Light Modulator
(2019) Goncharov, D. S.; Zlokazov, E. Y.; Petrova, E. K.; Ponomarev, N. M.; Starikov, R. S.; Злоказов, Евгений Юрьевич; Петрова, Елизавета Кирилловна; Стариков, Ростислав Сергеевич
© 2019, Allerton Press, Inc.A method for implementing invariant correlation filters in the form of holographic filters in the design of an optical-digital image correlator using a phase liquid-crystal space-time modulator is considered. The results of the simulation of correlation recognition of half-tone images using holographic correlation filters are presented. The results of the experimental implementation of holographic correlation filters using a phase liquid-crystal space-time light modulator are also described.
Только метаданные
Hardware/Software Support for Correlation Detection in Holographic Wavefront Sensors
(2019) Ruchka, P. A.; Verenikina, N. M.; Gritsenko, I. V.; Kovalev, M. S.; Zlokazov, E. Y.; Злоказов, Евгений Юрьевич
© 2019, Pleiades Publishing, Ltd.Abstract: An algorithm that automatically calculates aberrations in the holographic wavefront sensor scheme previously proposed by the authors is described, which enables measuring aberrations by means of iterative generation of holograms on a phase spatial light modulator (SLM). The practical implementation of this algorithm on the basis of the feedback of the camera and SLM is given. Using the proposed algorithm, defocusing was measured with an accuracy of λ/160.
Только метаданные
A Tribute to Sergey Odinokov
(2022) Odinokova, O. I.; Kolyuchkin, V. Y.; Solomashenko, A. B.; Shishova, M. V.; Zlokazov, E. Y.; Starikov, R. S.; Evtikhiev, N. N.; Злоказов, Евгений Юрьевич; Стариков, Ростислав Сергеевич; Евтихиев, Николай Николаевич
Только метаданные
Methods of diffractive optical element generation for rapid, high-quality 3D image formation of objects divided into a set of plane layers
(2024) Zlokazov, E. Y.; Minaeva, E. D.; Rodin, V. G.; Starikov, R. S.; Cheremkhin, P. A.; Shifrina, A. V.; Злоказов, Евгений Юрьевич; Родин, Владислав Геннадьевич; Стариков, Ростислав Сергеевич; Черёмхин, Павел Аркадьевич; Шифрина, Анна Владимировна
Только метаданные
Iterative synthesis of binary inline Fresnel holograms for high-quality reconstruction in divergent beams with DMD
(2022) Cheremkhin, P. A.; Evtikhiev, N. N.; Krasnov, V. V.; Starikov, R. S.; Zlokazov, E. Y.; Черёмхин, Павел Аркадьевич; Евтихиев, Николай Николаевич; Стариков, Ростислав Сергеевич; Злоказов, Евгений Юрьевич
© 2021 Elsevier LtdAim of this paper is formation of single focused diffraction order using binary amplitude modulation for digital micromirror device (DMD) applications. This can be achieved by using inline binary Fresnel holograms with divergent incident beam. However, extremely low reconstruction quality and diffraction efficiency of such holograms, synthesized by conventional means, prevent it. Here, we present new iterative method of synthesis of binary inline Fresnel holograms with much higher image reconstruction quality and diffraction efficiency compared to standard technique of hologram direct calculation. Synthesis procedure was carried out in two stages. The first stage of the new technique is based on Gerchberg-Saxton algorithm with two principal differences. First one is that synthesized diffractive optical element (DOE) is not a phase one, but an inline binary amplitude hologram. And second difference is that incident wavefront is spherical instead of a plane one. The second stage includes an application of the direct search with random trajectory method which greatly improves hologram characteristics by consequent processing of every pixel in it. The resulting binary inline Fresnel holograms in comparison to ones, synthesized using direct calculation method, have up to 11 times lower reconstruction error and up to 4 times higher diffraction efficiency. Results of optical reconstruction using DMD also demonstrate superiority of the new approach.
Только метаданные
Computer-Generated Holograms Application in Security Printing
(2022) Kolyuchkin, V. V.; Lushnikov, D. S.; Smirnov, A. V.; Zlokazov, E. Y.; Злоказов, Евгений Юрьевич
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.In the present article the application of computer-generated holograms in security printing was considered. The main subject was creation of informative memory marks based on CGH for automatic read out of the information embedded in this marks that can be used for identification, copyrighting, or other types of authentication control of security elements. The fundamental theoreti-cal basics of computer-generated holograms and its applications were given. The proposed technical solutions, such as “Printed hologram”, “Smart verification”, and “Holomemory”, were considered in detail. The announced solutions were presented in the schemes of interaction between manufacturers of security printing and its potential consumers—citizens and regulatory government agencies.
Только метаданные
Multispectral Sampling Sequence Formation in an Analog Optical Path: Possibility of Automatic Control Using Digital Feedback
(2023) Zemtsov, D. S.; Zlokazov, E. Y.; Nebavskiy, V. A.; Starikov, R. S.; Khafizov, I. G.; Злоказов, Евгений Юрьевич; Небавский, Всеволод Алексеевич; Стариков, Ростислав Сергеевич