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Вид документа : Статья из сборника (выпуск монографической серии)
Шифр издания :
Автор(ы) : Sadreev A. F., Pilipchuk A. S., Pilipchuk A. A.
Заглавие : Tuning of fano resonance by waveguide rotation: Wave faucet and bound states in the continuum
Место публикации : Fano Resonances in Optics and Microwaves: Physics and Applications/ ed.: E. Kamenetskii, A. Sadreev, A. Miroshnichenko: Springer, 2018. - Vol. 219. - P.497-525. - (Springer Series in Optical Sciences; Vol. 219). - , DOI 10.1007/978-3-319-99731-5_21
Примечания : Cited References: 52. - This work has been supported by RFBR through Grant 17-02-00440. A. S. acknowledges discussions with E. N. Bulgakov, D. N. Maksimov, H. Schanz, P. Seba, L. Sirko, H.-J. Stöckmann and Shubo Wang.
Аннотация: We consider acoustic wave transmission in a non-axisymmetric waveguide composed of a cylindrical resonator of radius R and length L and two cylindrical waveguides of radius rR. The center lines of the waveguides are shifted relative to the center line of the resonator by a distance r0 and relative to each other by an azimuthal angle Δϕ. Under variation of L and fixed Δϕ we find bound states in the continuum (trapped modes) due to full destructive interference of resonant modes leaking into waveguides. Rotation by the angle Δϕ brings complex phases into the coupling strengths of the resonator eigenmodes with propagating modes of the waveguides. As the result interference of neighboring resonances strongly depends on rotation of the waveguide introducing novel way for tuning Fano resonances. In turn rotation of the input waveguide strongly affect the acoustic transmission through the resonator imitating a faucet in wave transmission. Under variation of Δϕ and fixed L we find symmetry protected trapped modes. For Δϕ≠0 these trapped modes contribute to the scattering function supporting high vortical acoustic intensity spinning inside the resonator.
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Вид документа : Статья из сборника (выпуск монографической серии)
Шифр издания :
Автор(ы) : Kamenetskii E., Sadreev A. F., Miroshnichenko A.
Заглавие : Preface
Место публикации : Fano Resonances in Optics and Microwaves: Physics and Applications/ ed.: E. Kamenetskii, A. Sadreev, A. Miroshnichenko: Springer, 2018. - Vol. 219. - P.V-VII. - (Springer Series in Optical Sciences; Vol. 219). - , DOI 10.1007/978-3-319-99731-5
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Вид документа : Статья из сборника (выпуск монографической серии)
Шифр издания :
Автор(ы) : Kashkina L. V., Petrakovskaya E. A., Yemelyanova T. Y., Stebeleva O. P.
Заглавие : The impact of microwaves of different timing on the structural and chemical characteristics of a carbonaceous natural material
Коллективы : International Science and Engineering Conference on High Technology: Research and Applications
Место публикации : Key Eng. Mater. - 2017. - Vol. 743 KEM. - P.437-442. - , DOI 10.4028/www.scientific.net/KEM.743.437
Примечания : Cited References: 11
Ключевые слова (''Своб.индексиров.''): coal--electromagnetic energy--dispersion organic structure--organic structure--electronic structure
Аннотация: Changes in the properties of brown Kansk-Achinsk coal after exposure to microwaves have been studied using scanning electron microscopy (SEM) and electron magnetic resonance (EMR). The size composition of the samples has been investigated. The structure of coal has been found to be similar to the structure of multicomponent organic glass. The analysis of the changes in the EMR spectra of the coal samples (300 K, 83 K) exposed to microwaves has been found to gather information about the structural transformation taking place in the coal matter.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Voloshin A. S., Khodenkov S. A., Shabanov V. F.
Заглавие : Investigation of one-dimensional photonic crystal structures with two sublattices in microwaves
Место публикации : Russ. Phys. J.: SPRINGER, 2013. - Vol. 55, Is.8. - P.861-868. - ISSN 1064-8887, DOI 10.1007/s11182-013-9893-y
Примечания : Cited References: 8
Ключевые слова (''Своб.индексиров.''): dielectric permittivity--pass band--photonic crystal--resonator
Аннотация: The behavior of eigenfrequencies of an irregular microstrip resonator, being an integral part of the one-dimensional photonic crystal (PC) with two sublattices, is investigated as a function of its design parameters. The possibility of a significant increase of the second band gap of the PC with two sublattices is demonstrated that essentially improves the frequency selection properties of the bandpass filters designed on its basis. Good agreement between the calculated results and measurements with the prototype of the original filter built around the microstrip photonic crystal of new design comprising 19 layers is demonstrated. В© 2013 Springer Science+Business Media New York.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Беляев, Борис Афанасьевич, Волошин, Александр Сергеевич, Ходенков, Сергей Александрович, Шабанов, Василий Филиппович
Заглавие : Исследование одномерных двухподрешеточных фотонно-кристаллических структур в свч-диапазоне
Место публикации : Изв. вузов. Физика. - 2012. - Т. 55, № 8. - С. 5-12
Аннотация: Исследовано поведение собственных частот нерегулярного микрополоскового резонатора от его конструктивных параметров, являющегося элементом одномерного двухподрешеточного фотонного кристалла (ФК). Показана возможность значительного увеличения ширины второй запрещенной зоны в двухподрешеточном ФК, что существенно улучшает частотно-селективные свойства полосно-пропускающих фильтров на его основе. Демонстрируется хорошее согласие расчета с результатами измерений на опытном образце оригинального фильтра, построенного на новой конструкции микрополоскового фотонного кристалла, состоящего из 19 «слоев».
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Volkov N. V., Rautskii M. V., Eremin E. V., Patrin G. S., Kim P. D., Lee C. G.
Заглавие : Response of a manganite-based magnetic tunnel structure to microwave radiation
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P.125-128. - ISBN 978, DOI 10.4028/www.scientific.net/SSP.190.125. - ISBN 9783037854365
Ключевые слова (''Своб.индексиров.''): magnetic tunnel structure--microwave detection effect--spintronics--current flowing--current-in-plane geometry--magnetic tunnels--magnetization dynamics--microwave detection--non-linearity--rectification effects--spin-polarized currents--voltage signals--magnetic materials--magnetoelectronics--manganese oxide--microwaves--magnetism
Аннотация: We demonstrate that a magnetic tunnel structure irradiated by microwaves can generate a significant voltage signal due to the rectification effect. The measurements were carried out using current-in-plane geometry with a current flowing parallel to the interfaces in the structure. A value of the microwave-induced voltage strongly depends on a bias current and can be driven by a magnetic field. The rectification effect is discussed both in "Classical" terms of nonlinearity of the current-voltage characteristic and using a mechanism that involves the interplay between the spinpolarized current and magnetization dynamics in the magnetic tunnel structure. В© (2012) Trans Tech Publications.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mironov V. L., Lukin Y. I.
Заглавие : A PHYSICAL MODEL OF DIELECTRIC SPECTRA OF THAWED AND FROZEN BENTONITIC CLAY WITHIN THE FREQUENCY RANGE FROM 1 TO 15 GHZ
Место публикации : Russ. Phys. J.: SPRINGER, 2011. - Vol. 53, Is. 9. - P956-963. - ISSN 1064-8887, DOI 10.1007/s11182-011-9516-4
Примечания : Cited References: 7. - This study has been supported by the Complex integration project of the SB RAS Presidium, Grant No. 6 and a joint RFBR - France grant No. 09-05-91061-NTSNI.
Предметные рубрики: SOIL
Ключевые слова (''Своб.индексиров.''): dielectric spectra--moist specimens--bentonitic clay--microwaves--phase transitions--bentonitic clay--dielectric spectra--microwaves--moist specimens--phase transitions
Аннотация: The dielectric spectra of moist specimens of bentonitic clay are measured within the frequency range from 1 to 15 GHz at positive and negative temperatures. The phase transitions in different types of water present in the clay specimen are investigated in the process of its freezing. The parameters of dielectric relaxation and conductivity of different water types in the specimen are determined. A thermal dielectric model for thawed and frozen bentonitic clay is developed.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Belyaev B. A., Leksikov A.A., Govorun I. V., Izotov A.V., Serzhantov A.M.
Заглавие : Narrowband stripline filter on suspended substrate
Коллективы : International Crimean Conference Microwave and Telecommunication Technology, CriMiCo 2014
Место публикации : KpbiMuKo 2009 CriMiCo - 2009 19th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings. - 2009. - P.503-504. - ISBN 9789663352497 (ISBN)
Ключевые слова (''Своб.индексиров.''): narrow band filter--narrow bands--stripline filters--stripline resonators--suspended substrates--microwaves--strip telecommunication lines--computer crime
Аннотация: A method of decreasing of interaction between stripline resonators on a suspended substrate that allows reducing sizes of narrowband filters on their base is proposed. © 2009: CriMiCo'2009 Organizing Committee.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Belyaev B. A., Leksikov A. A., Govorun I. V., Serzhantov A.M.
Заглавие : Microstrip protector
Коллективы : International Crimean Conference Microwave and Telecommunication Technology, CriMiCo 2014
Место публикации : KpbiMuKo 2009 CriMiCo - 2009 19th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings. - 2009. - P.511-512. - ISBN 9789663352497 (ISBN)
Ключевые слова (''Своб.индексиров.''): control elements--microstripes--new construction--protection device--radio pulse--electric batteries--high temperature superconductors--microwaves--computer crime
Аннотация: New construction of microstrip radio pulse protection device is proposed which control element is a rectangular HTS film frame. © 2009: CriMiCo'2009 Organizing Committee.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berggren K. F., Maksimov D. N., Sadreev A. F., Hohmann R., Kuhl U., Stockmann H. J.
Заглавие : Quantum stress in chaotic billiards
Место публикации : Phys. Rev. E: AMER PHYSICAL SOC, 2008. - Vol. 77, Is. 6. - Ст.66209. - ISSN 1539-3755, DOI 10.1103/PhysRevE.77.066209
Примечания : Cited References: 43
Предметные рубрики: MICROWAVE CAVITIES
WAVE-FUNCTIONS
STATISTICAL PROPERTIES
SYSTEMS
FIELDS
Ключевые слова (''Своб.индексиров.''): computer networks--electric fields--electroacupuncture--electromagnetic field theory--electromagnetic fields--electromagnetism--function evaluation--functions--gaussian distribution--image segmentation--magnetism--mathematical models--microwaves--modal analysis--nematic liquid crystals--numerical analysis--random processes--stresses--tensors--trellis codes--two dimensional--wave functions--waves--abiotic and biotic stress--e ,2e theory--p ,p ,t measurements--american physical society (aps)--analytic expressions--current flowing--dinger equation--experimental studies--gaussian random fields--net flows--plane waves--quantum billiards--quantum-mechanical (qm)--scattering wave functions--sinai billiard (sb)--statistical distributions--stress tensors--two-dimensional (2d)--chaotic systems
Аннотация: This paper reports on a joint theoretical and experimental study of the Pauli quantum-mechanical stress tensor T(alpha beta)(x,y) for open two-dimensional chaotic billiards. In the case of a finite current flow through the system the interior wave function is expressed as psi=u + iv. With the assumption that u and v are Gaussian random fields we derive analytic expressions for the statistical distributions for the quantum stress tensor components T(alpha beta). The Gaussian random field model is tested for a Sinai billiard with two opposite leads by analyzing the scattering wave functions obtained numerically from the corresponding Schrodinger equation. Two-dimensional quantum billiards may be emulated from planar microwave analogs. Hence we report on microwave measurements for an open two-dimensional cavity and how the quantum stress tensor analog is extracted from the recorded electric field. The agreement with the theoretical predictions for the distributions for T(alpha beta)(x,y) is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferential direction and amplitude.
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