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1.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Arkhipkin V. G., Myslivets S. A., Timofeev I. V.
Заглавие : Effect of electromagnatically induced transparency on spectrum of defect modes of photonic crystal - art. no. 67292H
Коллективы : International Conference on Coherent and Nonlinear Optics
Место публикации : ICONO 2007: Coherent and nonlinear optical phenomena. Ser. proceedings of the society of photo-optical instrumentation engineers (SPIE)/ International Conference on Coherent and Nonlinear Optics (2007): SPIE-Int. Soc. Optical Engineering, 2007. - Vol. 6729. - P.H7292-H7292. - ISBN 0277-786X, DOI 10.1117/12.751966. - ISBN 978-0-8194-6886-4
Примечания : Cited References: 33
Предметные рубрики: ELECTROMAGNETICALLY INDUCED TRANSPARENCY
NONLINEAR OPTICS
COHERENT MEDIA
LIGHT
MICROCAVITIES
PULSES
Ключевые слова (''Своб.индексиров.''): photonic crystal--defect mode--photonic band gap--localized mode--electromagnetically induced transparency--defect mode--electromagnetically induced transparency--localized mode--photonic band gap--photonic crystal--crystal defects--dispersion (waves)--electromagnetic field effects--transparency--photonic crystals
Аннотация: The effect of electromagnetically induced transparency on the spectrum of defect modes of one-dimensional photonic crystal is discussed theoretically. Narrowing of defect mode linewidth is predicted due to nonabsorbing highly dispersive medium in defect layer.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : Two types of localized states in a photonic crystal bounded by an epsilon near zero nanocomposite
Место публикации : Photonics. - 2018. - Vol. 5, Is. 3. - Ст.22. - ISSN 23046732 (ISSN), DOI 10.3390/photonics5030022
Примечания : Cited References: 53
Ключевые слова (''Своб.индексиров.''): photonic crystal--nanocomposite--epsilon near zero material--tamm plasmon polariton
Аннотация: The spectral properties of a one-dimensional photonic crystal bounded by a resonant absorbing nanocomposite layer with the near-zero permittivity have been studied. The problem of calculating the transmittance, reflectance, and absorptance spectra of such structures at the normal and oblique incidence of light has been solved. It is shown that, depending on the permittivity sign near zero, the nanocomposite is characterized by either metallic or dielectric properties. The possibility of simultaneous formation of the Tamm plasmon polariton at the photonic crystal/metallic nanocomposite interface and the localized state similar to the defect mode with the field intensity maximum inside the dielectric nanocomposite layer is demonstrated. Specific features of field localization at the Tamm plasmon polariton and defect mode frequencies are analyzed. © 2018 by the authors.
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Sadreev A. F.
Заглавие : Bound states in photonic Fabry-Perot resonator with nonlinear off-channel defects
Коллективы :
Место публикации : Phys. Rev. B: AMER PHYSICAL SOC, 2010. - Vol. 81, Is. 11. - Ст.115128. - ISSN 1098-0121, DOI 10.1103/PhysRevB.81.115128
Примечания : Cited References: 73. - The work was partially supported by RFBR under Grant No. 09-02-98005 "Siberia." We are greatly acknowledge Konstantin Pichugin for many discussions.
Предметные рубрики: CRYSTAL WAVE-GUIDES
STATIONARY LOCALIZED STATES
COUPLED-MODE THEORY
OPTICAL RESONATORS
NUCLEAR REACTIONS
UNIFIED THEORY
MICROCAVITIES
TRANSMISSION
CONTINUUM
CIRCUITS
Аннотация: We consider a Fabry-Perot resonator (FPR) comprised of two off-channel nonlinear defects coupled to the photonic waveguide. For the linear case FPR can support bound states in the form of standing waves between the defects if a distance between them is quantized. For the nonlinear case the bound states appear for arbitrary distance between the defects if electromagnetic intensity is quantized. For transmission through the FPR we reveal additional resonances which are the result of coupling of incident wave with the bound states because of nonlinearity of the defects. The resonances are spaced at the eigenfrequencies of bound states with a width proportional to the input amplitude. The theory of the FPR based on the simple Wang and Fan model [Phys. Rev. E 68, 066616 (2003)] is complemented by the tight-binding one. The results for the transmission and bound states in these models agree with computations in real two-dimensional photonic crystal waveguide coupled with two off-channel defects fabricated from a Kerr-type material.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Pichugin K. N., Sadreev A. F.
Заглавие : Light induced Josephson like current between two coupled nonlinear cavities coupled with a symmetrically positioned photonic crystal waveguide
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 2011. - Vol. 23, Is. 6. - Ст.65304. - ISSN 0953-8984, DOI 10.1088/0953-8984/23/6/065304
Примечания : Cited References: 26. - The work was supported by RFBR-grant 09-02-98005-'Siberia' and by RFBR-grant 11-02-00289.
Предметные рубрики: LOCALIZED MODES
BREAKING
CIRCUITS
Ключевые слова (''Своб.индексиров.''): complex amplitude--green function theory--josephson--kerr materials--light intensity--nonlinear cavities--optical cavities--photonic crystal waveguide--optical waveguides--photonic crystals--transparency--waveguides--light transmission
Аннотация: We consider light transmission in a photonic crystal waveguide coupled with two identical nonlinear cavities positioned symmetrically beside the waveguide and coupled with each other. Using Green function theory we show three scenarios for the transmission. The first one inherits the linear case in which the light transmission preserves the symmetry. In the second scenario the symmetry is broken by the light intensities at the cavities. In the third scenario the intensities are equal but the phases of the complex amplitudes are different at the cavities. This results in a Josephson like current between the cavities. The model consideration agrees well with computations of the Poynting current in a photonic crystal waveguide coupled with two optical cavities filled with a Kerr material.
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bulgakov E. N., Pichugin K. N., Sadreev A. F.
Заглавие : Symmetry breaking for transmission in a photonic waveguide coupled with two off-channel nonlinear defects
Место публикации : Phys. Rev. B: American Physical Society, 2011. - Vol. 83, Is. 4. - Ст.45109. - ISSN 1098-0121, DOI 10.1103/PhysRevB.83.045109
Примечания : Cited References: 50. - This work was partially supported by RFBR Grant No. 09-02-98005-"Siberia" and RFBR Grant No. 11-02-00289.
Предметные рубрики: CRYSTAL-CIRCUITS
LOCALIZED MODES
BISTABILITY
IMPURITIES
RESONANCE
CAVITIES
STATES
MEDIA
Аннотация: We consider light transmission in a two-dimensional (2D) photonic crystal waveguide coupled with two identical nonlinear defects positioned symmetrically aside the waveguide. With the coupled mode theory, we show three scenarios for the transmission. The first one inherits the linear case and preserves the symmetry. In the second scenario, the symmetry is broken because of different light intensities at the defects. In the third scenario, the intensities at the defects are equal but phases of complex amplitudes are different. That results in a vortical power flow between the defects similar to the dc Josephson effect if the input power over the waveguide is applied and the defects are coupled. All of these phenomena agree well with computations based on an expansion of the electromagnetic field into optimally adapted photonic Wannier functions in a 2D photonic crystal.
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6.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Samoshkina Yu. E., Petrov D. A., Rautskii M. V., Neznakhin D. S., Stepanova E. A., Stepanov A. L.
Заглавие : Co nanoparticles localized in matrices of Various types: magnetooptical and magnetotransport properties
Коллективы : Российская академия наук, Физико-технический институт им. Е.К. Завойского ФИЦ Казанского научного центра РАН, Казанский (Приволжский) федеральный университет, Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : VIII Euro-Asian symposium "Trends in magnetism" (EASTMAG-2022): Book of abstracts/ program com. S. G. Ovchinnikov [et al.]. - 2022. - Vol. 1, Sect.: Magnetotransport, magnetooptics and magnetophotonics. - Ст.D.P14. - P.466-467. - ISBN 978-5-94469-051-7
Примечания : Cited References: 8. - This research was funded by the Russian Science Foundation grant No. 21-72-00061
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7.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Popov A.K., Slabko V.V., Shalaev M.I., Myslivets S. A.
Заглавие : Engineering localized nonlinear - optical transport with optical phonons
Коллективы : International Conference on Transparent Optical Networks
Место публикации : 13th International Conference on TransparenT Optical Network. - 2011. - Ст.5971107
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S. Ya., Avdeeva A. Yu., Pyatnov M. V., Timofeev I. V.
Заглавие : Hybrid Tamm-cavity modes in photonic crystal with resonant nanocomposite defect layer
Место публикации : Комп. оптика. - 2020. - Т. 44, № 3. - С.319-324. - ISSN 01342452 (ISSN), DOI 10.18287/2412-6179-CO-637; Comput. Opt.
Примечания : Библиогр.: 32. - 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 No 18-42-243025
Аннотация: Hybrid optical modes in a one-dimensional photonic crystal with a resonant nanocomposite defect bounded by a metallic layer are studied. The nanocomposite consists of spherical metallic constituents, that are distributed in a dielectric matrix. Transmittance, reflectance, and absorbance spectra of this structure, which is shined by light with normal incidence, are calculated. The possibility of control of the hybrid modes spectral characteristics by changing the thickness of the layer adjacent to the metal, the number of layers, and the nanocomposite filling factor is shown.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ivantsov I. D., Ferraz A., Kochetov E.
Заглавие : Itinerant-localized model of strongly correlated electrons: Fermi surface reconstruction
Место публикации : Phys. Rev. B. - 2017. - Vol. 96, Is. 19. - Ст.195161. - ISSN 24699950 (ISSN), DOI 10.1103/PhysRevB.96.195161
Примечания : Cited References: 19
Аннотация: A number of recent experiments have highlighted a remarkable transformation of a large cuprate Fermi surface into small pockets in the underdoped region signaling a breakdown of a conventional Fermi liquid theory in the pseudogap phase. A few phenomenological models have been recently put forward to account for this transformation. However, none of those models have been derived microscopically or are totally compatible with experimental data. In the present work we show that the observed Fermi-surface reconstruction can be accounted for directly within a standard microscopic t-J model of correlated electrons, provided strong electron correlations are properly taken into account.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ivantsov I. D., Ferraz A., Kochetov E.
Заглавие : Quantum Monte Carlo study of the itinerant-localized model of strongly correlated electrons: Spin-spin correlation functions
Место публикации : Phys. Rev. B: American Physical Society, 2016. - Vol. 94, Is. 23. - Ст.235118. - ISSN 10980121 (ISSN), DOI 10.1103/PhysRevB.94.235118
Примечания : Cited References: 15
Аннотация: We perform quantum Monte Carlo simulations of the itinerant-localized periodic Kondo-Heisenberg model for the underdoped cuprates to calculate the associated spin correlation functions. The strong electron correlations are shown to play a key role in the abrupt destruction of the quasi-long-range antiferromagnetic order in the lightly doped regime. © 2016 American Physical Society.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolovsky A. R., Bulgakov E. N.
Заглавие : Wannier-Stark states and Bloch oscillations in the honeycomb lattice
Место публикации : Phys. Rev. B. - 2013. - Vol. 87, Is. 3. - Ст.033602. - P. - ISSN 1050-2947, DOI 10.1103/PhysRevA.87.033602
Ключевые слова (''Своб.индексиров.''): bloch oscillations--chaotic state--honeycomb lattices--localization length--localized state--quantum particles--static fields--tight-binding approximations--solid state physics--honeycomb structures
Аннотация: We study a quantum particle in a tilted honeycomb lattice in the tight-binding approximation. First we discuss the particle eigenstates, i.e., the stationary Wannier-Stark states. These states are proved to be extended states for the rational directions of the static field and localized states for the irrational directions. We find energy bands of the extended states and analyze the localized states. It is shown, in particular, that the localized honeycomb Wannier-Stark states are chaotic states with irregular dependence of the localization length on the static field magnitude. Second we discuss Bloch oscillations of the quantum particle. Irregular Bloch oscillations for irrational directions are observed. В© 2013 American Physical Society.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kuzmin E. V., Ovchinnikov S. G., Sandalov I. S.
Заглавие : Paramagnetic-susceptibility and phonon instability of metal with localized and collectivized electron state mixing
Место публикации : Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 2. - P.424-430. - ISSN 0367-3294
Примечания : Cited References: 22
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Samoshkina Yu. E., Edelman I. S., Chou, Hsiung, Petrov D. A., Zharkov S. M., Neznakhin, Dmitry, Stepanova, Elena, Stepanov, Andrey
Заглавие : Magnetic circular dichroism of Co nanoparticles localized in matrices of various types
Место публикации : Materialia. - 2023. - Vol. 28. - Ст.101759. - ISSN 25891529 (eISSN), DOI 10.1016/j.mtla.2023.101759
Примечания : Cited References: 28. - This work was supported by the Russian Science Foundation [grant number 21-72-00061]. Electron microscopic studies were carried out in the laboratory of electron microscopy of the Joint Scientific Center of the Siberian Federal University
Аннотация: Magnetic and magneto-optical properties of cobalt nanoparticles (Co-NPs) dispersed in a transparent dielectric SiO2 and semiconductor ZnO matrices have been investigated. Field and temperature dependences of the samples magnetization showed the typical behavior of an ensemble of superparamagnetic particles with a blocking temperature near and below room temperature. The spectroscopy of magnetic circular dichroism (MCD) in the visible and near-infrared light ranges has revealed a significant difference between the behavior of the Co-NPs and a solid Co film. It has been found that the MCD spectrum shape for the Co-NPs does not depend on the matrix type. The room temperature magneto-optical activity of the Co-NPs in the different matrices has been estimated as an indicator for practical applications.
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ovchinnikov S. G., Kimel A.
Заглавие : Different physical mechanism of the UFM in ferromagnets with itinerant and localized electrons
Коллективы : Ultrafast Magnetism Conference
Место публикации : Ultrafast Magnetism Conference (UMC2015). - 2015
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ovchinnikov S. G., Yakhimovich S. I.
Заглавие : Metal-dielectric phase-transition in matter with localized magnetic-moments
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1981. - Vol. 81, Is. 2. - P.633-641. - ISSN 0044-4510
Примечания : Cited References: 11
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16.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Piatnov M. V., Vetrov S. Ya., Timofeev I. V.
Заглавие : Optical localized states in the liquid crystal structure bordering on the metal
Коллективы : Workshop on Liquid Crystals for Photonics
Место публикации : 6th Workshop on Liq. Cryst. for Photon./ program-book. - 2016. - Ст.PO11. - P. 53
Примечания : Библиогр.: 2
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pyatnov M. V., Vetrov S. Ya., Timofeev I. V.
Заглавие : Localized optical modes in a defect-containing liquid-crystal structure adjacent to the metal
Место публикации : J. Opt. Soc. Am. B: Optical Society of America, 2017. - Vol. 34, Is. 9. - P.2011-2017. - ISSN 07403224 (ISSN), DOI 10.1364/JOSAB.34.002011
Примечания : Cited References: 44. - Russian Foundation for Basic Research (RFBR), Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (17-42-240464).
Ключевые слова (''Своб.индексиров.''): cholesteric liquid crystals--crystal defects--defects--liquid crystals--liquids--metals--optical kerr effect--polarization--diffraction reflections--external fields--field localization--maximum field intensity--metallic layers--polarization dependence--spectral properties--transmittance spectra--crystal structure
Аннотация: The possibility of the existence of localized optical modes with maximum field intensity at the interface between the metal and cholesteric liquid crystal is theoretically grounded. The system comprises a defect-containing cholesteric liquid crystal and a metal layer. It is established that the localization occurs at almost any defect thickness rather than only at the half-wave thickness, at which the loss of the polarization dependence of diffraction reflection and the absence of field localization are observed for the structure without the metallic layer. It is demonstrated that the spectral properties can be controlled by external fields affecting the liquid crystal. At large thicknesses of the cholesteric liquid crystal between the defect and the metallic layer, the spectrum contains the pronounced peaks corresponding to the edge modes. The results obtained open new opportunities for controlling the transmittance spectrum, polarization, and localization of light in optoelectronic elements based on the investigated system. © 2017 Optical Society of America.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pyatnov M. V., Vetrov S. Ya., Timofeev I. V.
Заглавие : Localized optical states in a liquid-crystal structure adjacent to a metal
Коллективы : International Optical Congress on Optics - 21st Century, International Conference on Basic Problems of Optics (BPO) , Russian Foundation for Basic Research; Government of the Krasnoyarsk Territory; Krasnoyarsk Territorial Science and Technology Support Fund [17-42-240464]
Место публикации : Opt. Spectrosc.: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 123, Is. 2. - P.189-192. - ISSN 0030-400X, DOI 10.1134/S0030400X17080173. - ISSN 1562-6911(eISSN)
Примечания : Cited References:23. - This study was supported by the Russian Foundation for Basic Research, Government of the Krasnoyarsk Territory, and Krasnoyarsk Territorial Science and Technology Support Fund, project no. 17-42-240464.
Предметные рубрики: PHOTONIC CRYSTALS
TAMM STATES
MODES
Аннотация: The spectrum of light transmission through a structure consisting of a metallic layer and a cholesteric liquid crystal with an induced planar defect is calculated. The possibility of existence of localized states at the metal-dielectric interface of this system is demonstrated. The transmission spectra at different positions of the defect in the structure are studied.
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19.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Pyatnov M. V., Vetrov S. Ya., Timofeev I. V.
Заглавие : Localized states in a metal - cholesteric liquid crystal structure containing a planar defect
Коллективы : European Conference on Liquid Crystals, Московский государственный университет им. М.В. Ломоносова
Место публикации : 14th Eur. Conf. Liq. Cryst. (ECLC): conf. programme. - 2017. - Ст.O59. - P.10
Примечания : Библиогр.: 3
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakomirnyi V. I., Rasskazov I. L., Gerasimov V. S., Ershov A. E., Polyutov S. P., Karpov S. V.
Заглавие : Refractory titanium nitride two-dimensional structures with extremely narrow surface lattice resonances at telecommunication wavelengths
Место публикации : Appl. Phys. Lett.: American Institute of Physics, 2017. - Vol. 111, Is. 12. - Ст.123107. - ISSN 00036951 (ISSN), DOI 10.1063/1.5000726
Примечания : Cited References: 54. - This work was supported by the RF Ministry of Education and Science, the State contract with Siberian Federal University for scientific research in 2017–2019. Numerical calculations were performed using the MVS-1000M system at the Institute of Computational Modeling of the Siberian Branch of the Russian Academy of Sciences.
Ключевые слова (''Своб.индексиров.''): bandwidth--nanoparticles--nanostructures--optical properties--plasmons--q factor measurement--refractory materials--titanium compounds--diffractive grating--electromagnetic response--localized surface plasmon--low cost fabrication--plasmonic nanoparticle--telecommunication bandwidth--telecommunication wavelengths--two-dimensional structures--titanium nitride
Аннотация: Regular arrays of plasmonic nanoparticles have brought significant attention over the last decade due to their ability to support localized surface plasmons (LSPs) and exhibit diffractive grating behavior simultaneously. For a specific set of parameters (i.e., period, particle shape, size, and material), it is possible to generate super-narrow surface lattice resonances (SLRs) that are caused by interference of the LSP and the grating Rayleigh anomaly. In this letter, we propose plasmonic structures based on regular 2D arrays of TiN nanodisks to generate high-Q SLRs in an important telecommunication range, which is quite difficult to achieve with conventional plasmonic materials. The position of the SLR peak can be tailored within the whole telecommunication bandwidth (from ≈ 1.26 μm to ≈ 1.62 μm) by varying the lattice period, while the Q-factor is controlled by changing nanodisk sizes. We show that the Q-factor of SLRs can reach a value of 2 × 103, which is the highest reported Q-factor for SLRs at telecommunication wavelengths so far. Tunability of optical properties, refractory behavior, and low-cost fabrication of TiN nanoparticles paves the way for manufacturing cheap nanostructures with extremely stable and adjustable electromagnetic response at telecommunication wavelengths for a large number of applications.
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