Персона:
Горкунов, Максим Валерьевич

Организационные подразделения

Организационная единица

Институт нанотехнологий в электронике, спинтронике и фотонике

Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе. Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.

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Горкунов

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Максим Валерьевич

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Теперь показываю 1 - 10 из 16

Только метаданные
Nonlinear diffraction of light on near-surface microdomain structures
(2019) Kondratov, A. V.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
© 2019 Kvantovaya Elektronika and Turpion Ltd The nonlinear diffraction on periodic microdomain structures with different orientations of the spontaneous polarisation axis relative to the surface is theoretically considered. The possibility of reliable non-destructive diagnostics of the period, duty cycle and depth of domain structures, as well as of the shape of the domain walls under the crystalline surface is shown.
Только метаданные
Corrugated silicon metasurface optimized within the Rayleigh hypothesis for anomalous refraction at large angles
(2019) Antonov, A. A.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
© 2019 Optical Society of America.We optimize the performance of optical metasurfaces based on periodically corrugated silicon layers by adjusting the Fourier coefficients of their surface profiles. For smooth corrugations, we demonstrate the excellent quantitative accuracy of a semi-analytical approach based on the Rayleigh hypothesis. We employ this approach to design metasurfaces with anomalous refraction due to dominant first-order diffraction. Unlike conventional Huygens’ dielectric metasurfaces, corrugated silicon layers are capable of efficient anomalous refraction in near-grazing directions: we obtain corrugation shapes allowing us to deflect 70%–80% of the energy of normally incident green light into the range of 68°–85° of angles with respect to the normal.
Только метаданные
Liquid crystal metasurfaces for versatile electrically tunable diffraction
(2022) Mamonova, A. V.; Simdyankin, I. V.; Kasyanova, I. V.; Artemov, V. V.; Geivandov, A. R.; Palto, S. P.; Ezhov, A. A.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
Liquid crystal (LC) metasurfaces self-assemble on polymer alignment layers patterned by focused ion beam inducing micrometre and submicrometre scale modulations of LC director imparting specific wavefront profiles to the transmitted light required for versatile optical functionalities. We report on the design, optimisation, fabrication and characterisation of LC metasurfaces performing as Dammann gratings distributing light uniformly in many diffraction channels. Comparing them with the previously reported diffracting and beam-steering LC metasurfaces, we demonstrate how the same approach can be applied to create photonic devices with qualitatively different diffraction properties switchable between diffracting and transparent states by low voltage within several milliseconds. Analysing the achievements, we elucidate the future potential of the LC metasurface concept and discuss particular application prospects. © 2022 Informa UK Limited, trading as Taylor and Francis Group.
Только метаданные
Non-Mechanical Multiplexed Beam-Steering Elements Based on Double-Sided Liquid Crystal Metasurfaces
(2022) Gorkunov, M. V.; Geivandov, A. R.; Mamonova, A. V.; Simdyankin, I. V.; Ezhov, A. A.; Artemov, V. V.; Горкунов, Максим Валерьевич
We propose, optimize, fabricate and test beam-steering elements based on double-sided liquid-crystal (LC) metasurfaces allowing for diffractive and spectral multiplexing, and thus covering three different beam deflection directions each. While straightforward parallel design requires one diffractive beam-steering element per a direction determined by BraggвЂ™s law, double-sided LC-metasurfaces are remarkably flexible and allow optimization for three operation modes at different applied voltages: zero-voltage mode with dominant +1 order red light and +2 order blue light diffraction intermediate mode at 1.4вЂ“1.6 V voltage with dominant +1 order blue light diffraction and transparent mode at 5 V voltage. We comprehensively study three such elements with 6, 8 and 10 micrometer periods and verify their capability of deflecting blue and red light beams with 40вЂ“70% efficiencies in nine target directions with 10 ms characteristic switching times.
Только метаданные
Double-sided liquid crystal metasurfaces for electrically and mechanically controlled broadband visible anomalous refraction
(2022) Gorkunov, M. V.; Mamonova, A. V.; Kasyanova, I. V.; Ezhov, A. A.; Artemov, V. V.; Simdyankin, I. V.; Geivandov, A. R.; Горкунов, Максим Валерьевич
Liquid crystals self-assemble on nanopatterned alignment layers into purely soft matter metasurfaces sensitive to external stimuli and imparting tailored spatial modulations to transmitted light wavefronts. Upon fine optimization, they are capable of efficient light deflection by virtue of anomalous refraction into a dominating transmission diffraction order. To expand the spectral range and acquire additional functionality, we put forward the double-sided metasurface design based on the liquid crystal alignment by a pair of complementing patterned substrates. We numerically optimize, fabricate, and experimentally characterize metasurfaces refracting red light with an efficiency of up to 70% and sustaining the efficiency above 50% in a broad range of visible wavelengths exceeding 500 nm. We verify that the refraction is reversibly switched in less than 10 ms by voltages of a few volts. We also report on a remarkable mechanical reconfigurability, as micrometer-scale relative substrate shift flips the refraction direction. © 2022 the author(s), published by De Gruyter, Berlin/Boston.
Только метаданные
Polycrystalline Methylammonium–Lead Bromide Perovskite Films for Photonic Metasurfaces
(2024) Yurasik, G. A.; Kasyanova, I. V.; Artemov, V. V.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
Только метаданные
Uncovering Maximum Chirality in Resonant Nanostructures
(2024) Chen, W.; Wang, Z.; Gorkunov, M. V.; Qin, J.; Wang, R.; Горкунов, Максим Валерьевич
Только метаданные
Dielectric Fourier metasurfaces as wide-angle Y-junction switches
(2021) Antonov, A. A.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
Dielectric Fourier metasurfaces-thin layers of strongly refracting transparent materials with periodic surface nanoreliefs-are capable of versatile flat-optical functionalities, including anomalous refraction in up to near-grazing directions. Describing the reliefs by a few Fourier coefficients, one can straightforwardly optimize them numerically or, eventually, analytically in terms of the Rayleigh hypothesis. We demonstrate that silicon Fourier metasurfaces supporting anomalous refraction in near-grazing directions can be employed as efficient optical Y-junction switches. Operating in the vicinity of a certain diffraction order cutoff, they can drastically alter the direction of outgoing light due to subtle variations of the optical setup. As examples, we show the possibility to deflect 70%-80% of the power of green light by more than 150 degrees when the incoming beam is inclined by only 2 degrees, or when the relative substrate permittivity is varied by 0.1. We also evaluate the prospects of metasurfaces made of other weaker-refracting transparent materials.
Только метаданные
Liquid-Crystal Metasurfaces Self-Assembled on Focused Ion Beam Patterned Polymer Layers: Electro-Optical Control of Light Diffraction and Transmission
(2020) Kasyanova, I. V.; Artemov, V. V.; Ezhov, A. A.; Mamonova, A. V.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
Self-assembling of liquid-crystal metasurfaces on polymer layers patterned by a focused ion beam manifests itself in distinctly colored optical transmission, as light from certain spectral bands is efficiently diffracted by the periodic liquid crystal modulations. We explore the metasurface electro-optics by applying voltage across the liquid crystal to straighten its director distribution and reroute the diffracted light into the direct transmission. We show that the characteristic times of switching from the diffracting to the transmitting state can be decreased down to a millisecond by increasing the driving voltage up to 6-8 V, while the main part of the relaxation back into the periodically deformed diffracting state occurs within about a few milliseconds, i.e., by an order of magnitude faster than the relaxation of the analogous homogeneous electro-optical liquid crystal cell. We explain the profound dynamics in terms of superimposed exponential modes governed by an interplay of the metasurface geometric parameters, the liquid crystal viscosity, and elasticity.
Только метаданные
Self-Assembled Liquid-Crystal-Metasurfaces Controlling Deflection and Retardation of Light
(2020) Kasyanova, I. V.; Artemov, V. V.; Ezhov, A. A.; Mamonova, A. V.; Gorkunov, M. V.; Горкунов, Максим Валерьевич
© 2020 OSA - The Optical Society. All rights reserved.Liquid-crystal-metasurfaces self-Assemble on polymer films prepared by periodic and superperiodic FIB patterning. Optimizing their design we achieve precise control of the transmitted light phase and direction tunable by low-voltage electric pulses.