Constantin Simovski, Stanislav I. Maslovski, Igor S. Nefedov, Sergei Kosulnikov, Pavel A. Belov, Sergei Tretyakov,
We suggest and theoretically explore a possibility to strongly enhance thermal radiation of hot bodies using an infrared hyperlens. The hyperbolic metamaterial of the hyperlens converts emitter's near fields into propagating waves which are efficiently irradiated from the hyperlens surface. Thus, with the hyperlens, emitter's spectral radiance goes well beyond the black-body limit for the same emitter in free space. Although the hyperlens can be kept at a much lower temperature than the emitter, ...
Tópico(s): Metamaterials and Metasurfaces Applications
2015 - Elsevier BV | Photonics and Nanostructures - Fundamentals and Applications
Pavel A. Belov, Sergei Tretyakov, A.J. Viitanen,
An electrically controlled nonreciprocal electromagnetic band-gap material is proposed and studied. The new material is a periodic three-dimensional regular lattice of small magnetized ferrite spheres. In this paper, we consider plane electromagnetic waves in this medium and design an analytical model for the material parameters. An analytical solution for plane-wave reflection from a planar interface is also presented. In the proposed material, a new electrically controlled stop band appears for ...
Tópico(s): Photonic Crystals and Applications
2002 - American Physical Society | Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Pavel A. Belov, Sergei Tretyakov,
Plane-wave reflection from regular arrays of small particles positioned very near to an ideally conducting plane is theoretically studied. It is found that extremely thin (in wavelength) coverings with resonant properties can be realized if the array particles are small dipole antennas loaded by bulk inductances. This offers a possibility to realize an artificial magnetic conductor as a thin covering over conducting bodies. Dependencies of the resonance frequency and the resonant curve width on geometrical ...
Tópico(s): Photonic Crystals and Applications
2002 - Taylor & Francis | Journal of Electromagnetic Waves and Applications
Pavel A. Belov, Sergei Tretyakov, A.J. Viitanen,
An analytical theory of electromagnetic waves in artificial media formed by a rectangular lattice of thin ideally conducting cylinders using the local field approach is developed. As a result, the transcendental dispersion equation is obtained in closed form and solved numerically. Typical dispersion curves are calculated. Using these results, the reflection problem from an interface between a half space of wire medium and free space is solved for plane-wave excitation. In the low-frequency approximation ...
Tópico(s): Electromagnetic Scattering and Analysis
2002 - Taylor & Francis | Journal of Electromagnetic Waves and Applications
V. V. Belov, Sergei Yu Dobrokhotov, V. P. Maslov, T. Ya. Tudorovskii,
Tópico(s): Surface and Thin Film Phenomena
2005 - Institute of Physics | Physics-Uspekhi
Mikhail E. Belov, Sergei S. Alimpiev, V. Mlynsky, С. М. Никифоров, Peter J. Derrick,
Abstract The technique of frozen matrix‐assisted laser ablation coupled with resonance‐enhanced multiphoton ionization and reflectron time‐of‐flight mass spectrometry was used to detect intact organic molecules directly from solutions. When frozen at the temperature of liquid nitrogen, the matrices of interest were ablated by a pulsed CO 2 single‐mode laser. The analyte molecules emerging from the ablated plume were then ionized by a tunable XeCl excimer laser‐pumped dye laser and analysed with ...
Tópico(s): Laser-Matter Interactions and Applications
1995 - Wiley | Rapid Communications in Mass Spectrometry
A. V. Chebykin, Viktoriia E. Babicheva, Ivan Iorsh, Alexey A. Orlov, Pavel A. Belov, Sergei V. Zhukovsky,
Spontaneous emission enhancement is theoretically investigated in multiperiodic metal-dielectric multilayers (multiperiodic hyperboliclike metamaterials or photonic hypercrystals) where the unit cell consists of two layers of different dielectrics alternating with identical metallic layers. It is shown that the Purcell factor in such multiperiodic structures exceeds the Purcell factor in ordinary periodic hyperbolic or plasmonic metamaterials by a factor of 4, which in general makes it possible to ...
Tópico(s): Photonic Crystals and Applications
2016 - American Physical Society | Physical review. A/Physical review, A
Constantin Simovski, M.S. Kondratjev, Pavel A. Belov, Sergei Tretyakov,
Electromagnetic excitation of two-dimensional (2-D) arrays of bianisotropic particles by plane waves is considered. Arrays (grids) are assumed to be infinite and the particles to be small compared to the wavelength, so that the dipole approximation is possible. The electromagnetic interaction between all the particles changes the properties of these particles (in particular, chiral and omega particles are studied). The analytical model under consideration allows one to express the electric and magnetic ...
Tópico(s): Electromagnetic Scattering and Analysis
1999 - IEEE Antennas & Propagation Society | IEEE Transactions on Antennas and Propagation
Sergei Kosulnikov, Dmitry Filonov, Stanislav Glybovski, Pavel A. Belov, Sergei Tretyakov, Constantin Simovski,
Hyperlens is a metamaterial structure initially proposed for magnifying imaging of subwavelength scattering objects. Here, we show that a wire-medium (WM) hyperlens can be used also for significant enhancement of radiation from small sources to free space and that this enhancement holds in the ultra-wide frequency band. We investigate how the divergence of metal wires modifies the radiated power of a dipole, comparing with an array of parallel wires, and investigate the impact of other design parameters. ...
Tópico(s): Thermal Radiation and Cooling Technologies
2015 - IEEE Antennas & Propagation Society | IEEE Transactions on Antennas and Propagation
Pekka Ikonen, M. Kärkkäinen, Constantin Simovski, Pavel A. Belov, Sergei Tretyakov,
The authors study the possibility of utilising a loaded wire medium as an artificial material for a beam shaping element in base station antenna applications. The wires in the lattice are loaded with a proper capacitive impedance to produce a structure effectively operating as a dielectric lens at the UMTS (Universal Mobile Telecommunications System) frequency range. It is proven with full-wave simulations that the interpretation of a finite-size wire lattice as a dielectric lens is physically sound, ...
Tópico(s): Microwave Engineering and Waveguides
2006 - Institution of Engineering and Technology | IEE Proceedings - Microwaves Antennas and Propagation
S. Nikolaev, Sergei Belov, M. P. Gusev, Ighor Uzhinsky,
The methodology for prescriptive maintenance of complex technical systems is presented. The proposed methodology is based on a hybrid physics-based and data-driven modelling of complex systems. This approach integrates traditional physics-based simulation techniques such as finite-element modelling, finite-volume modelling, bond-graph modelling and data-driven models, with machine learning algorithms. Combined implementation of the both approaches results in the development of a set of reliable, ...
Tópico(s): Reservoir Engineering and Simulation Methods
2019 - Springer Science+Business Media | IFIP advances in information and communication technology
Pavel A. Belov, Constantin Simovski, Sergei Tretyakov,
Two-dimensional electromagnetic crystals formed by rectangular lattices of thin ideally conducting cylinders periodically loaded by bulk reactive impedances are considered. An analytical theory of dispersion and reflection from this medium is presented. The consideration is based on the local field approach. The transcendental dispersion equation is obtained in the closed form and solved numerically. Different types of the loads such as inductive, capacitive, serial, and parallel LC circuits are ...
Tópico(s): Advanced Antenna and Metasurface Technologies
2002 - American Physical Society | Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
Pavel A. Belov, Constantin Simovski, Sergei Tretyakov,
In this paper the electromagnetic properties of bianisotropic electromagnetic crystals are studied. The crystals are assumed to be rectangular lattices of perfectly conducting helicoidal spirals. The analytical theory of dispersion and plane-wave reflection refers to the case when the spiral step and the radius are small compared to the wavelengths in the host medium. The periods of the lattice can be arbitrary. Explicit closed-form expressions are derived for the effective material parameters of ...
Tópico(s): Electromagnetic Scattering and Analysis
2003 - American Physical Society | Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
V. V. Belov, V. V. Belov, Сергей Юрьевич Доброхотов, Sergei Yur'evich Dobrokhotov, Тимур Яковлевич Тудоровский, Timur Yakovlevich Tudorovskii,
Tópico(s): Fullerene Chemistry and Applications
2004 - Springer Science+Business Media | Теоретическая и математическая физика
Kseniia V. Baryshnikova, Sergey S. Kharintsev, Pavel A. Belov, Nikita Ustimenko, Sergei Tretyakov, Constantin Simovski,
Abstract Devices that form an optical image with a subwavelength resolution in real time – metalenses – are considered. Such devices either operate with near optical fields or convert near fields into wave fields. As a result, the spatial resolution of these devices is not limited by the diffraction limit. At the same time, the image is formed at a considerable distance from the object, which distinguishes near-field metalenses from the instruments used in near-field probe microscopy. Metalenses are ...
Tópico(s): Plasmonic and Surface Plasmon Research
2021 - Institute of Physics | Physics-Uspekhi
We deal with trace formulas for half-line Schrödinger operators with long-range potentials. We generalize the Buslaev–Faddeev trace formulas to the case of square integrable potentials. The exact relation between the number of the trace formulas and the number of integrable derivatives of the potential is also given. The main results are optimal.
Tópico(s): Quantum Mechanics and Non-Hermitian Physics
2003 - American Institute of Physics | Journal of Mathematical Physics
Boris Vasilyev, S. Nikolaev, Mikhail Raevskiy, Sergei Belov, Ighor Uzhinsky,
Blade damage accounts for a substantial part of all failure events occurring at gas-turbine-engine power plants. Current operation and maintenance (O&M) practices typically use preventive maintenance approaches with fixed intervals, which involve high costs for repair and replacement activities, and substantial revenue losses. The recent development and evolution of condition-monitoring techniques and the fact that an increasing number of turbines in operation are equipped with online monitoring ...
Tópico(s): Probabilistic and Robust Engineering Design
2020 - Multidisciplinary Digital Publishing Institute | Applied Sciences
Mingzhao Song, Prasad Jayathurathnage, Esmaeel Zanganeh, Mariia Krasikova, П. Р. Смирнов, Pavel A. Belov, Polina Kapitanova, Constantin Simovski, Sergei Tretyakov, Alex Krasnok,
Tópico(s): Wireless Power Transfer Systems
2021 - Nature Portfolio | Nature Electronics
Alexander S. Belov, Sergeĭ Konyagin,
Tópico(s): Analytic Number Theory Research
1996 - Pleiades Publishing | Mathematical Notes
Pavel A. Belov, Stanislav I. Maslovski, Konstantin Simovski, Sergei Tretyakov,
Tópico(s): Metamaterials and Metasurfaces Applications
2003 - Pleiades Publishing | Technical Physics Letters
Stanislav I. Maslovski, Sergei Tretyakov, Pavel A. Belov,
Abstract In this Letter artificial media formed by dense arrays of parallel conducting wires are considered. A simple analytical model for the effective permittivity is derived from quasi‐static considerations. The result gives a formula for the permittivity in terms of the geometrical parameters and the frequency. The analysis covers lossy and loaded wires as well. The phenomena that lead to negative permittivity values are discussed. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: ...
Tópico(s): Metamaterials and Metasurfaces Applications
2002 - Wiley | Microwave and Optical Technology Letters
Yuri Estrin, Arcady Dyskin, Elena Pasternak, Stephan Schaare, Sergei Stanchits, Alexei Kanel-Belov,
Tópico(s): Dynamics and Control of Mechanical Systems
2003 - Elsevier BV | Scripta Materialia
Stanislav Glybovski, Sergei Tretyakov, Pavel A. Belov, Yuri S. Kivshar, Constantin Simovski,
We review the basic physics and applications of a special class of planar metamaterials, often called metasurfaces, which are composed of optically thin and densely packed planar arrays of resonant or nearly resonant subwavelength elements. Electromagnetic properties and functionalities of such metasurfaces are defined by the structure and specific features of the subwavelength elements and their coupling type and strength, and they are often influenced by an underlying substrate. Metasurfaces may ...
Tópico(s): Antenna Design and Analysis
2016 - Elsevier BV | Physics Reports
Pekka Ikonen, Constantin Simovski, Sergei Tretyakov, Pavel A. Belov, Yang Hao,
Authors demonstrate numerically the magnification of subwavelength field pattern using a wire medium slab operating in the canalization regime. The magnifying slab is implemented by radially enlarging the distance between adjacent wires, and the operational frequency is tuned to coincide with the Fabry-Pérot resonance condition. The near-field pattern of a complex-shaped source is canalized over an electrical distance corresponding roughly to three wavelengths (3λ), and the pattern details are magnified ...
Tópico(s): Plasmonic and Surface Plasmon Research
2007 - American Institute of Physics | Applied Physics Letters
М. Г. Гордиенко, Vera V. Palchikova, Sergei V. Kalenov, Alexey A. Belov, Veronika N. Lyasnikova, Daniil Poberezhniy, Alina V. Chibisova, Vladimir V. Sorokin, Д. А. Складнев,
The development of antiseptics and medical products (bandaging materials, sponges, etc.) based on silver nanoparticles is an essential task due to the growing resistance of pathogenic microorganisms to medicines long used in clinical practice. Using silver nanoparticles for the same purpose is promising, but the potential hazards and cumulative effects in the application of nanoparticles requires a thorough study of those materials. To evaluate the efficiency of antiseptics and medical products based ...
Tópico(s): Medical and Biological Ozone Research
2019 - Elsevier BV | Journal of Hazardous Materials
Armin de Meijere, M. Von Seebach, Stefan Zöllner, Sergei I. Kozhushkov, Vladimir N. Belov, Roland Boese, Thomas Haumann, J. Benet‐Buchholz, Dmitrii S. Yufit, Judith Howard,
Perspirocyclopropanated bicyclopropylidene (6) was prepared in three steps from 7-cyclopropylidenedispiro[2.0.2.1]heptane (4) (24% overall) or, more efficiently, through dehalogenative coupling of 7,7-dibromo[3]triangulane (15) (82%). This type of reductive dimerization turned out to be successful for the synthesis of (E)- and (Z)-bis(spiropentylidene) 14 (67%) and even of the "third-generation" spirocyclopropanated bicyclopropylidene 17 (17% overall from 15). Whereas the parent bicyclopropylidene 1 dimerized ...
Tópico(s): Organometallic Complex Synthesis and Catalysis
2001 - Wiley | Chemistry - A European Journal
Kseniya V. Baryshnikova, Sergei S. Kharintsev, Pavel A. Belov, Nikita Ustimenko, Sergei Tretyakov, Constantin Simovski,
Tópico(s): Plasmonic and Surface Plasmon Research
2021 - Lebedev Physical Institute | Uspekhi Fizicheskih Nauk
Pavel A. Belov, Constantin Simovski, Sergei Tretyakov,
Tópico(s): Optical Coatings and Gratings
2004 - Pleiades Publishing | Journal of Communications Technology and Electronics
Constantin Simovski, Mikhail S. Kondratiev, Pavel A. Belov, Sergei Tretyakov,
The electromagnetic excitation of 2D array of bianisotropic particles by plane waves is considered. The array is assumed to be infinite and the particles to be small compared with the wavelength so that the dipole approximation is available. The electromagnetic interaction between tall the particles is taken into account analytically. Two kinds of bianisotropic particles: chiral particles and omega particles are analyzed. Both the electric and magnetic moments of each particle are related to each ...
Tópico(s): Advanced Antenna and Metasurface Technologies
1997 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Arsenii Uglov, S. Nikolaev, Sergei Belov, Daniil I. Padalitsa, Tatiana Greenkina, Marco San Biagio, Fabio Cacciatori,
Tópico(s): Additive Manufacturing and 3D Printing Technologies
2022 - Springer Science+Business Media | Structural and Multidisciplinary Optimization