Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и брошюр библиотеки ИФ СО РАН (1)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=Coupled<.>)

Общее количество найденных документов : 60
Показаны документы с 1 по 10

1-10 11-20 21-30 31-40 41-50 51-60

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Komogortsev S. V., Iskhakov R. S., Fel'k V. A.
Заглавие : Fractal Dimension Effect on the Magnetization Curves of Exchange-Coupled Clusters of Magnetic Nanoparticles
Коллективы : Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [18-42-240006]
Место публикации : J. Exp. Theor. Phys. - 2019. - Vol. 128, Is. 5. - P.754-760. - ISSN 1063-7761, DOI 10.1134/S1063776119040095. - ISSN 1090-6509(eISSN)
Примечания : Cited References: 54. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund under the research project no. 18-42-240006.
Предметные рубрики: THIN-FILMS
COERCIVE FORCE
NANOCRYSTALLINE
SATURATION
FERROMAGNETS
Аннотация: The effect of the fractal dimension of exchange-coupled clusters of magnetic nanoparticles on their magnetization curves is predicted by scaling estimates. These predictions form the basis for the experimental technique used for determining the fractal dimension of nanoparticle clusters from the magnetization curves. We estimate the reliability of determining the dimension by such methods with the help of micromagnetic simulation. It is shown that the effective dimension of magnetic correlation volumes, which is determined from analysis of the magnetization approaching saturation, is in conformity with the dimension of fractal clusters determined from analysis of their morphology. The dimension estimated from analysis of the coercive field on the particle size in a physically natural situation of the dipole-dipole interaction between nanoparticles provides estimates of the cluster dimension, which strongly differs from estimates obtained from analysis of their morphology.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pyatnov M. V., Timofeev I. V., Vetrov S. Ya.
Заглавие : Coupled chiral optical Tamm states in liquid crystals
Коллективы : Asian Conference on Liquid Crystals
Место публикации : The 4th Asian Conference on Liquid Crystals (ACLC 2019): abstracts. - 2019. - Ст.P-78
Примечания : Библиогр.: 3
Материалы конференции,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Orlov V. A., Ivanov A. A., Orlova I. N.
Заглавие : Motion of Coupled Magnetic Vortices in Parallel Nanostripes
Место публикации : Phys. Solid State. - 2019. - Vol. 61, Is. 3. - P.361-369. - ISSN 10637834 (ISSN), DOI 10.1134/S1063783419030223
Примечания : Cited References: 48. - This study was supported by the Russian Foundation for Basic Research, project no. 18-02-00161.
Аннотация: The periodic motion of the interacting vortex domain walls in a pair of nanostripes has been theoretically investigated. As a model, two parallel nanostripes with magnetization inhomogeneities in the form of magnetic vortices have been examined. The magnetic subsystems of the stripes are magnetostatically coupled. The quasi-elastic coupling between vortices ensures the existence of normal modes of the periodic magnetization motion. The frequencies of these modes have been calculated. It is shown that not any combination of the vortex topological charge leads to the resonant behavior of magnetization in ac fields. The effect of the static component of a magnetic field on the frequency of the periodic motion of vortex domain walls is discussed. © 2019, Pleiades Publishing, Ltd.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belyaev B. A., Lemberg K. V., Shabanov V. F.
Заглавие : Study of an Electromagnetic Wave Transmission Line Based on Coupled Dielectric Resonators
Место публикации : Dokl. Phys. - 2019. - Vol. 64, Is. 11. - P.409-413. - ISSN 1028-3358, DOI 10.1134/S1028335819110053. - ISSN 1562-6903 (eISSN)
Примечания : Cited References: 7. - This study was supported by the Ministry of Science and Higher Education, project no. RFMEFI60417X0179.
Аннотация: An analog of an optical waveguide in the form of a chain of metallic nanoparticles has been investigated using modified cylindrical dielectric resonators in the microwave band. Similar to the plasma oscillations in spherical nanoparticles, the two lowest resonances of the dielectric resonator correspond to the dipole and quadrupole oscillatory modes. It is shown that a waveguide consisting of seven resonators exhibits high frequency selective properties and relatively low loss if the resonances of the quadrupole oscillatory modes are used to form its passband. The characteristics of the investigated waveguide remain almost unchanged at its bending by 90°, and the cross section of localization of the main part of the energy propagating in the waveguide is smaller than the electromagnetic wavelength by a factor of five, which approximately corresponds to the optical waveguides based on plasma oscillations in nanoparticles.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Maksimov D. N., Pankin P. S., Chen K. -P., Timofeev I. V.
Заглавие : Critical coupling vortex with grating-induced high Q-factor optical Tamm states
Место публикации : Opt. Express. - 2021. - Vol. 29, Is. 3. - P.4672-4680. - ISSN 10944087 (ISSN), DOI 10.1364/OE.416132
Примечания : Cited References: 54. - Funding. Ministry of Science and Technology, Taiwan (108-2923E-009-003-MY3); Russian Foundation for Basic Research (19-52-52006); Council on grants of the President of the Russian Federation (MK-46.2021.1.2)
Аннотация: We investigate optical Tamm states supported by a dielectric grating placed on top of a distributed Bragg reflector. It is found that under certain conditions the Tamm state may become a bound state in the continuum. The bound state, in its turn, induces the effect of critical coupling with the reflectance amplitude reaching an exact zero. We demonstrate that the critical coupling point is located in the core of a vortex of the reflection amplitude gradient in the space of the wavelength and angle of incidence. The emergence of the vortex is explained by the coupled mode theory.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Maksimov D. N., Bogdanov A. A., Bulgakov E. N.
Заглавие : Optical bistability with bound states in the continuum in dielectric gratings
Коллективы : Government of the Russian Federation through the ITMO Fellowship; Ministry of Science and Higher Education of Russian Federation, goszadanie [2019-1246]; RFBRRussian Foundation for Basic Research (RFBR) [18-32-20205]
Место публикации : Phys. Rev. A. - 2020. - Vol. 102, Is. 3. - Ст.033511. - ISSN 2469-9926, DOI 10.1103/PhysRevA.102.033511. - ISSN 2469-9934(eISSN)
Примечания : Cited References: 53. - This work was financially supported by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program. A.A.B. also acknowledges support by the Ministry of Science and Higher Education of Russian Federation, goszadanie No. 2019-1246 and RFBR (18-32-20205)
Предметные рубрики: COUPLED-MODE THEORY
WAVE-GUIDE
TRANSITION
RESONANCE
ARRAYS
Аннотация: We consider light scattering by dielectric gratings supporting optical bound states in the continuum. Due to the presence of instantaneous Kerr nonlinearity critical field enhancement in the spectral vicinity of the bound state triggers the effect of optical bistability. The onset of bistability is explained theoretically in the framework of the temporal coupled-mode theory. As the central result we cast the problem in the form of a single field-driven nonlinear oscillator. The theoretical results are verified in comparison with numerical simulations.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S. Ya., Timofeev I. V., Shabanov V. F.
Заглавие : Localized modes in chiral photonic structures
Место публикации : Phys. Usp. - 2020. - Vol. 63, Is. 1. - P.33-56. - ISSN 1063-7869, DOI 10.3367/UFNe.2018.11.038490. - ISSN 1468-4780(eISSN)
Примечания : Cited References: 251
Предметные рубрики: CHOLESTERIC LIQUID-CRYSTAL
CONTROLLED LIGHT-SCATTERING
SCULPTURED THIN-FILMS
Аннотация: We discuss chiral structures in self-organizing, artificial, and biological materials. A review of experimental studies and recent advances in the localization of light in chiral structures is given. The behavior of polarized resonant modes in such structures is examined using the example of a one-dimensional photonic crystal containing liquid crystal materials. The anomalous spectral shifts of transmission peaks are interpreted as the contribution of the geometric phase caused by the twisting of the layers of the liquid crystal. The optical Tamm state localized at the boundary between chiral and nonchiral mirrors in the form of a cholesteric layer and a polarization-preserving anisotropic mirror is analytically and numerically described. Considerable attention is paid to the presentation of the properties of localized optical modes in the cholesteric with a resonant metal-dielectric nanocomposite. New possibilities for controlling the properties of the photonic structure are noted, due to the combination of the dispersion of the resonant medium and the intrinsic dispersion of the cholesteric. Attention is focused on controlled hybrid modes in the cholesteric structure formed by the coupling of localized modes. Possible applications and further ways of developing the concept of chiral photonic structures are deliberated.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pyatnov M. V., Timofeev I. V., Vetrov S. Ya., Rudakova N. V.
Заглавие : Coupled chiral optical Tamm states in cholesteric liquid crystals
Место публикации : Photonics. - 2018. - Vol. 5, Is. 4. - Ст.30. - ISSN 23046732 (ISSN), DOI 10.3390/photonics5040030
Примечания : Cited References: 38. - This research was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund, to the research Project Nos. 17-42-240464 and 18-42-243025.
Ключевые слова (''Своб.индексиров.''): cholesteric liquid crystal--optical tamm states--localization--transmission spectrum--optical devices
Аннотация: The modes formed by two coupled chiral optical Tamm states localized at the interfaces between a photonic cholesteric liquid crystal conjugated with polarization-preserving anisotropic mirrors have been analytically and numerically investigated. These modes are only excited at the diffracting polarization of incident light. As the cholesteric layer thickness decreases, the spectral splitting of the localized state frequency is predicted. The splitting value depends on the crystal layer thickness. At the nondiffracting circular polarization, the localized modes are not excited, and the system becomes similar to the Fabry-Perot cavity containing an anisotropic helical structure.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Timofeev I. V., Pankin, Pavel S., Vetrov S. Ya., Arkhipkin V. G., Lee, Wei, Zyryanov V. Ya.
Заглавие : Chiral optical Tamm states: temporal coupled-mode theory
Коллективы : Ministry of Science and Technology (MOST), Taiwan [106-2923-M-009-002-MY3]; Russian Foundation for Basic Research; Krasnoyarsk Region Science and Technology [17-42-240464]; Scholarship of the President of the Russian Federation [SP-227.2016.5]; Siberian Branch of the Russian Academy of Sciences [0356-2015-0410, 0356-2015-0411]; Government of Krasnoyarsk Territory
Место публикации : Crystals. - 2017. - Vol. 7, Is. 4. - Ст.113. - ISSN 2073-4352, DOI 10.3390/cryst7040113
Примечания : Cited References:71. - This work was financially sponsored by the Ministry of Science and Technology (MOST), Taiwan, under Grant No. 106-2923-M-009-002-MY3, the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, the Krasnoyarsk Region Science and Technology Support Fund to the research project No. 17-42-240464, the Scholarship of the President of the Russian Federation No. SP-227.2016.5 and by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P (Project Nos. 0356-2015-0410 and 0356-2015-0411). The authors are thankful to A.F. Sadreev, E.N. Bulgakov, N.V. Rudakova, Y.-C. Hsiao and L.V. Pertseva for valuable discussions and comments.
Предметные рубрики: CHOLESTERIC LIQUID-CRYSTAL
SCULPTURED THIN-FILMS
PHOTONIC DEFECT
Ключевые слова (''Своб.индексиров.''): optical tamm state--cholesteric liquid crystal--handedness-preserving mirror
Аннотация: The chiral optical Tamm state (COTS) is a special localized state at the interface of a handedness-preserving mirror and a structurally chiral medium such as a cholesteric liquid crystal or a chiral sculptured thin film. The spectral behavior of COTS, observed as reflection resonances, is described by the temporal coupled-mode theory. Mode coupling is different for two circular light polarizations because COTS has a helical structure replicating that of the cholesteric. The mode coupling for co-handed circularly polarized light exponentially attenuates with the cholesteric layer thickness since the COTS frequency falls into the stop band. Cross-handed circularly polarized light freely goes through the cholesteric layer and can excite COTS when reflected from the handedness-preserving mirror. The coupling in this case is proportional to anisotropy of the cholesteric and theoretically only anisotropy in magnetic permittivity can ultimately cancel this coupling. These two couplings being equal result in a polarization crossover (the Kopp-Genack effect) for which a linear polarization is optimal to excite COTS. The corresponding cholesteric thickness and scattering matrix for COTS are generally described by simple expressions.
Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Найти похожие

10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Boldyrev K. N., Stanislavchuk T. N., Sirenko A. A., Kamenskyi D., Bezmaternykh L. N., Popova M. N.
Заглавие : Bifurcations observed in the spectra of coupled electron-phonon modes in multiferroic PrFe3(BO3)4 subjected to a magnetic field [Electronic resource]
Место публикации : ArXiv. - 2016. - Ст.1609.02125
Вид и объем ресурса: Electronic text data
Примечания : Cited References: 19. - This research was supported by the Russian Scientific Foundation under Grant No 14-12-01033, the President of Russian Federation (MK-3521-2015.2, K.N.B.), and the U.S. Department of Energy under Grant No DE-FG02-07ER46382 (experiments at U4-IR beamline NSLS-BNL, T.N.S. and A.A.S.). The National Synchrotron Light Source is operated as a User Facility for he U.S. Department of Energy under Contract No. DE-AC02-98CH10886. Part of this work was supported by EMFL (contract No. 26211). M.N.P. thanks B.Z. Malkin helpful discussions.
Аннотация: We report on bifurcations effect mediated by the electron-phonon coupling in a concentrated rare-earth-containing antiferromagnet, observed in the spectra of coupled 4f-electron-phonon modes under the influence of an external magnetic field. The effect was observed in the low-temperature far-infrared (terahertz) reflection spectra of a multiferroic easy-axis antiferromagnet PrFe3(BO3)4 in magnetic fields Bext||c. Both paramagnetic and magnetically ordered phases (including a spin-flop one) were studied in magnetic fields up to 30 T. We show that the field behavior of the coupled modes can be successfully explained and modeled on the base of the equation derived in the frame of the theory of coupled electron-phonon modes, with the same field-independent electron-phonon interaction constant |W|=14.8cm−1.
Смотреть статью,
Читать в сети ИФ
Найти похожие