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    Разъемное соединение объединенных коаксиального и круглого волноводов / К. В. Лемберг, Н. М. Боев, Д. А. Шабанов [и др.]. - № 2022129972 ; Заявл. 18.11.2022 ; Опубл. 07.03.2023 // Изобретения. Полезные модели : офиц. бюл. Фед. службы по интеллектуал. собственности (Роспатент). - 2023. - № 19
   Перевод заглавия: Detachable connection of combined coaxial and circular waveguides
Аннотация: Изобретение относится к технике сверхвысоких частот и предназначено для соединения объединенных коаксиального и круглого волноводов, используемых в облучателях двухзеркальных антенн. Разъемное соединение объединенных коаксиального и круглого волноводов содержит две соосные проводящие трубки разного диаметра. Внутренняя трубка одновременно является круглым волноводом и проводником коаксиального волновода, а внешняя трубка является экраном коаксиального волновода. В месте разъемного соединения внутренняя проводящая трубка напрямую стыкуется с круглым волноводом, внутрь коаксиального волновода вставлен цилиндр со скосом под углом 45°, причем напротив скоса цилиндра во внешней проводящей трубке расположено окно прямоугольного волновода. Технический результат - возможность жесткого крепления внутренней трубки совмещенного коаксиально круглого волновода при одновременном обеспечении возможности его разъемного cочленения, а также увеличение развязки между сигналами в коаксиальном и круглом волноводах устройства. 6 ил.

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Держатели документа:
Институт физики им. Л. В. Киренского СО РАН

Доп.точки доступа:
Лемберг, Константин Вячеславович; Lemberg, K. V.; Боев, Никита Михайлович; Boev, N. M.; Шабанов, Дмитрий Александрович; Shabanov, D. A.; Клешнина, Софья Андреевна; Kleshnina, S. A.; Грушевский, Евгений Олегович; Grushevskii, Ye. O.; Александровский, Александр Сергеевич; Aleksandrovsky, A. S.; Лексиков, Андрей Александрович; Leksikov, An. A.; Шумилов, Тимофей Юрьевич; Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"; Федеральная служба по интеллектуальной собственности (Роспатент); Федеральный институт промышленной собственности
}
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Demountable K/Q band coaxial feed for Cassegrain antenna / K. V. Lemberg, N. M. Boev, A. V. Kantyshev [et al.] // 2022 IEEE International Multi-Conference on Engineering, Computer and Information Sciences, SIBIRCON 2022 : IEEE, 2022. - P. 1150-1153, DOI 10.1109/SIBIRCON56155.2022.10016929. - Cited References: 11
Кл.слова (ненормированные):
coaxial waveguides -- coaxial joint -- reflector antenna feeds -- dual-band feeds -- multiband antennas -- satellite communication
Аннотация: In this paper demountable K/Q bands feed for satellite communication Cassegrain antenna is reported. The feed is based on the combined coaxial-circular waveguide, in which outer wall of a circular waveguide is used as an inner conductor of a coaxial waveguide. This design allows to simultaneously transmit and receive signals in two widely separated frequency bands. A coaxial joint, which is the key part of the feed, is proposed and described in details. The joint performs several functions. First is to transmit the microwave energy through both waveguides. Second is ensuring the waveguides sealing. And third is ensuring the circular and coaxial waveguides alignment. The joint simulation results demonstrated return loss below-20 dB and insertion loss less than 0.06 dB in 20-21 GHz frequency range (K-band) as well as return loss below-30 dB and insertion loss less than 0.15 dB in 43-45.5 GHz frequency range (Q-band). Mechanical prototype of the joint was manufactured and tested.

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Держатели документа:
Scientific Instruments Lab, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Space Systems Design Office, JSC Information Satellite Systems, Zheleznogorsk, Russian Federation

Доп.точки доступа:
Lemberg, K. V.; Лемберг, Константин Вячеславович; Boev, N. M.; Боев, Никита Михайлович; Kantyshev, A. V.; Grican, O. B.; Shabanov, D. A.; Шабанов, Дмитрий Александрович; IEEE International Multi-Conference on Engineering, Computer and Information Sciences 2022(1-13 November 2022 ; Yekaterinburg, Russian Federation)
}
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    Fabry-Perot bound states in the continuum in an anisotropic photonic crystal / S. V. Nabol, P. S. Pankin, D. N. Maksimov, I. V. Timofeev // Phys. Rev. B. - 2022. - Vol. 106, Is. 24. - Ст. 245403, DOI 10.1103/PhysRevB.106.245403. - Cited References: 42. - We acknowledge discussions with Almas F. Sadreev. This study was supported by the Council on Grants of the President of the Russian Federation (MK-4012.2021.1.2) . - ISSN 2469-9950. - ISSN 2469-9969
   Перевод заглавия: Связанное состояние в континууме Фабри-Перо в анизотропном фотонном кристалле
Кл.слова (ненормированные):
Fabry-Perot interferometers -- Optical waveguides -- Photonic crystals
Аннотация: An anisotropic photonic crystal containing two anisotropic defect layers is considered. It is demonstrated that the system can support a Fabry-Perot bound state in the continuum (FP-BIC). A fully analytic solution of the scattering problem as well as a condition for FP-BIC have been derived in the framework of the temporal coupled-mode theory.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Nabol, S. V.; Наболь, Степан Васильевич; Pankin, P. S.; Панкин, Павел Сергеевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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General framework of bound states in the continuum in an open acoustic resonator / L. Huang, B. Jia, A. S. Pilipchuk [et al.] // Phys. Rev. Appl. - 2022. - Vol. 18, Is. 5. - Ст. 054021, DOI 10.1103/PhysRevApplied.18.054021. - Cited References: 47. - L.H. and A.E.M. are supported by the Australian Research Council Discovery Project (Grant No. DP200101353) and the UNSW Scientia Fellowship program. Y.K.C. and D.A.P. are supported by the Australian Research Council Discovery Project (Grant No. DP200101708). B.J., S.H., and Y.L. are supported by the National Natural Science Foundation of China (Grant No. 12074286) and the Shanghai Science and Technology Committee (Grant No. 21JC1405600). A.P., E.B., and A.S. are supported by the Russian Science Foundation (Grant No. 22-12-00070) . - ISSN 2331-7019
Кл.слова (ненормированные):
Acoustic resonators -- Acoustic waveguides -- Bound-states -- Coupled waveguide resonators -- Degenerate modes -- Eigen modes -- General method -- High-Q resonances -- Momentum spaces -- Non-Hermitian Hamiltonians -- Waveguide-resonators -- Waveguide filters
Аннотация: Bound states in the continuum (BICs) provide a viable way of achieving high-Q resonances in both photonics and acoustics. In this work, we propose a general method of constructing Friedrich-Wintgen (FW) BICs and accidental BICs in a coupled acoustic waveguide-resonator system. We demonstrate that FW BICs can be achieved with arbitrary two degenerate resonances in a closed resonator, regardless of whether they have the same or opposite parity. Moreover, their eigenmode profiles can be arbitrarily engineered by adjusting the position of the attached waveguide. This suggests an effective way of continuously switching the nature of the BICs from FW BICs to symmetry-protected BICs or accidental BICs. Also, such BICs are sustained in the coupled waveguide-resonator system with shapes such as rectangles, ellipses, and rhomboids. These interesting phenomena are well explained by the two-level effective non-Hermitian Hamiltonian, where two strongly coupled degenerate modes play a major role in forming such FW BICs. Additionally, we find that such an open system also supports accidental BICs in geometry space instead of momentum space via tuning the position of the attached waveguide, which is attributed to the quenched coupling between the waveguide and eigenmodes of the closed cavity. Finally, we fabricate a series of three-dimensional coupled resonator waveguides and experimentally verify the existence of FW BICs and accidental BICs by measuring the transmission spectra. Our results complement the current BIC library in acoustics and provide nice routes for designing acoustic devices, such as acoustic absorbers, filters, and sensors.

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Держатели документа:
School of Engineering and Information Technology, University of New South Wales, Northcott Drive, Canberra, ACT 2600, Australia
Institute of Acoustics, Tongji University, Shanghai, 200092, China
L. V. Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch, RAN, Krasnoyarsk, 660036, Russian Federation
Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, United States
Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, United States

Доп.точки доступа:
Huang, L.; Jia, B.; Pilipchuk, A. S.; Пилипчук, Артем Сергеевич; Chiang, Y.; Huang, S.; Li, J.; Shen, C.; Bulgakov, E. N.; Булгаков, Евгений Николаевич; Deng, F.; Powell, D. A.; Cummer, S. A.; Li, Y.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Miroshnichenko, A. E.
}
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    Pilipchuk, A. S.
    Generation of vortex waves in non-coaxial cylindrical waveguides / A. S. Pilipchuk, A. A. Pilipchuk, A. F. Sadreev // J. Acoust. Soc. Am. - 2019. - Vol. 146, Is. 6. - Ст. 4333, DOI 10.1121/1.5139222. - Cited References: 26. - We acknowledge discussions with Dmitrii Maksimov. This work was supported by RFBR Grant No. 18-32-00234. . - ISSN 0001-4966. - ISSN 1520-8524
   Перевод заглавия: Генерация вихревых волн в некоаксиальных цилиндрических волноводах
Рубрики:
Operator theory
   Coordinate system
   Waveguides
   Wave mechanics
   Acoustic field
   Optical field
   Optical tweezers
   Acoustical properties
   Acoustic waves
   Electrical properties and parameters
Аннотация: A non-coaxial waveguide composed of a cylindrical resonator of radius R and cylindrical waveguides with the radii r1 and r2, respectively, is considered. The radii satisfy the inequality r1˂r2˂R. The conversion from the channel with zero orbital angular momentum (OAM) into the channels with non-zero OAM is achieved by shifting the center lines of the waveguides relative to the center line of the cylindrical resonator. The center lines of input and output waveguides are shifted relative to each other by the angle Δϕ in order to twist the output acoustic wave. The conversion efficiency of the input wave with zero OAM into the output wave with non-zero OAM as dependent on the frequency, length of the resonator, and Δϕ is considered, and the domains where the efficiency can reach almost 100% are found.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Pilipchuk, A. A.; Пилипчук, Алина Андреевна; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Пилипчук, Артем Сергеевич
}
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Titanium nitride nanoparticles as an alternative platform for plasmonic waveguides in the visible and telecommunication wavelength ranges / V. I. Zakomirnyi [et al.] // Photonics Nanostruc. Fundam. Appl. - 2018. - Vol. 30. - P. 50-56, DOI 10.1016/j.photonics.2018.04.005. - Cited References: 85. - 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 and SB RAS Program No II.2P (0358-2015-0010). . - ISSN 1569-4410
Кл.слова (ненормированные):
Nanoparticle -- Titanium nitride -- Surface plasmon polariton -- Plasmon waveguide -- Refractory plasmonics
Аннотация: We propose to utilize titanium nitride (TiN) as an alternative material for linear periodic chains (LPCs) of nanoparticles (NPs) which support surface plasmon polariton (SPP) propagation. Dispersion and transmission properties of LPCs have been examined within the framework of the dipole approximation for NPs with various shapes: spheres, prolate and oblate spheroids. It is shown that LPCs of TiN NPs support high-Q eigenmodes for an SPP attenuation that is comparable with LPCs from conventional plasmonic materials such as Au or Ag, with the advantage that the refractory properties and cheap fabrication of TiN nanostructures are more preferable in practical implementations compared to Au and Ag. We show that the SPP decay in TiN LPCs remains almost the same even at extremely high temperatures which is impossible to reach with conventional plasmonic materials. Finally, we show that the bandwidth of TiN LPCs from non-spherical particles can be tuned from the visible to the telecommunication wavelength range by switching the SPP polarization, which is an attractive feature for integrating these structures into modern photonic devices.

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Держатели документа:
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zakomirnyi, V. I.; Rasskazov, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Agren, H.
}
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Belyaev, B. A.
An X-band magnetically tunable bandpass filter based on novel waveguide cavity resonator / B. A. Belayev, K. V. Lemberg, A. M. Serzhantov // Asia-Pacific Microwave Conference Proceedings, APMC 2016 : Institute of Electrical and Electronics Engineers Inc., 2017, DOI 10.1109/APMC.2016.7931355. - Cited References: 12
Кл.слова (ненормированные):
Bandpass filters -- Cavity resonators -- Waveguides -- Operating modes -- Relative bandwidth -- Tunable band-pass filters -- Tunable frequency -- Tunable wave-guides -- Two-pole filters -- Unloaded quality factors -- Waveguide cavity resonators -- Waveguide filters
Аннотация: This paper presents a ferrite tunable waveguide filter showing high Qu and high tunability in X-band. A new type of waveguide cavity resonator with an H102 operating mode was proposed for the creation of a low-loss, two-pole filter. The filter results in an insertion loss of 3.6-4.1 dB over the tuning range 8.74-9.63 GHz with a relative bandwidth of 0.92-0.79% and biasing magnetic field 0-600 Oe. This design demonstrates an unloaded quality factor of 380-396 over the tunable frequency range. © 2016 IEEE.

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Доп.точки доступа:
Lemberg, K. V.; Serzhantov, A. M.; Сержантов, Алексей Михайлович; Беляев, Борис Афанасьевич; Asia-Pacific Microwave Conference(2016 ; Dec. ; New Delhi)
}
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Thermal limiting effects in optical plasmonic waveguides / A. E. Ershov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2017. - Vol. 191. - P. 1-6, DOI 10.1016/j.jqsrt.2017.01.023. - Cited References: 51. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The numerical calculations were performed using the MVS-1000M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB Russian Academy of Sciences. . - ISSN 0022-4073
Кл.слова (ненормированные):
Plasmon resonance -- Optical plasmonic waveguide -- Surface plasmon polariton -- Thermal effects
Аннотация: We have studied thermal effects occurring during excitation of optical plasmonic waveguide (OPW) in the form of linear chain of spherical Ag nanoparticles by pulsed laser radiation. It was shown that heating and subsequent melting of the first irradiated particle in a chain can significantly deteriorate the transmission efficiency of OPW that is the crucial and limiting factor and continuous operation of OPW requires cooling devices. This effect is caused by suppression of particle's surface plasmon resonance due to reaching the melting point temperature. We have determined optimal excitation parameters which do not significantly affect the transmission efficiency of OPW. © 2017

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Держатели документа:
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Zakomirnyi, V. I.; Rasskazov, I. L.; Polyutov, S. P.
}
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Thermal effects in optical plasmonic waveguides / A. E. Ershov [и др.] // The International Conference on Coherent and Nonlinear Optics; The Lasers, Applications, and Technologies ICONO/LAT 2016. - 2016. - Ст. IThL14. - P. 79-80
Аннотация: We investigate the influence of the heating of the optical plasmonic waveguide in the form of chains of the plasmonic nanoparticles by laser radiation on its transmission properties

Материалы конференции,
Материалы конференции

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gerasimov, R.E.; Rasskazov, I. L.; Рассказов, Илья Леонидович; Zakomirnyi, V. I.; Gavrilyuk, A.P.; Гаврилюк, Анатолий Петрович; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)
}
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10.

Thermal effects in optical plasmonic waveguides / A. E. Ershov [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83: Спецвыпуск, Вып. 6-16. - P. 96-97 . - ISSN 0514-7506
Аннотация: We investigate the influence of the heating of the optical plasmonic waveguide in the form of chains of the plasmonic nanoparticles by laser radiation on its transmission properties.

РИНЦ

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Rasskazov, I. L.; Zakomirnyi, V. I.; Закомирный Вадим Игоревич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)
}
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11.

Three-wave mixing of ordinary and backward electromagnetic waves: Extraordinary transients in the nonlinear reflectivity and parametric amplification / V. V. Slabko [et al.] // Opt. Lett. - 2016. - Vol. 41, Is. 17. - P. 3976-3979, DOI 10.1364/OL.41.003976 . - ISSN 0146-9592
Кл.слова (ненормированные):
Amplification -- Circular waveguides -- Electromagnetic waves -- Mixing -- Nonlinear optics -- Phase matching -- Reflection -- Backward waves -- Energy fluxes -- Non-linear reflectivity -- Optical parametric amplification -- Parametric amplification -- Three wave mixing -- Transient process -- Optical parametric amplifiers
Аннотация: Three-wave mixing of ordinary and backward electromagnetic waves in a pulsed regime is investigated in the metamaterials that enable the coexistence and phase-matching of such waves. It is shown that the opposite direction of phase velocity and energy flux in backward waves gives rise to extraordinary transient processes due to greatly enhanced optical parametric amplification and frequency up- and down-shifting nonlinear reflectivity. The differences are illustrated through comparison with the counterparts in ordinary, co-propagating settings. © 2016 Optical Society of America.

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Держатели документа:
Siberian Federal University, 79 Svobodny Av., Krasnoyarsk, Russian Federation
Birck Nanotechnology Center, Purdue University, 1205 W State St., West Lafayette, IN, United States
L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Slabko, V. V.; Слабко, Виталий Васильевич; Popov, A. K.; Tkachenko, V. A.; Myslivets, S. A.; Мысливец, Сергей Александрович
}
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12.

Vetrov, S. Ya.
Spectral and polarization properties of a ‘cholesteric liquid crystal—phase plate—metal’ structure / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // J. Opt. - 2016. - Vol. 18, Is. 1. - Ст. 015103, DOI 10.1088/2040-8978/18/1/015103. - Cited References:34. - This work was supported by the Russian Foundation for Basic Research, project no. 14-02-31248, and the Ministry of Education and Science of the Russian Federation, Government program, project no. 3.1276.2014/K. . - ISSN 2040-8978. - ISSN 2040-8986

РУБ Optics
Рубрики:
OPTICAL TAMM STATES
MODES
LIGHT
Кл.слова (ненормированные):
photonic band gap materials -- cholesteric liquid crystals -- localized -- states -- optical filters -- optical waveguides
Аннотация: We investigate the localized surface modes in a structure consisting of the cholesteric liquid crystal layer, a phase plate, and a metal layer. These modes are analogous to the optical Tamm states. The nonreciprocal transmission of polarized light propagating in the forward and backward directions is established. It is demonstrated that the transmission spectrum can be controlled by external fields acting on the cholesteric liquid crystal and by varying the plane of polarization of the incident light.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Russian Foundation for Basic Research [14-02-31248]; Ministry of Education and Science of the Russian Federation, Government program [3.1276.2014/K]
}
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13.

    Sadreev, A. F.
    Gate controlled resonant widths in double-bend waveguides: bound states in the continuum / A. F. Sadreev, D. N. Maksimov, A. S. Pilipchuk // J. Phys.: Condens. Matter. - 2015. - Vol. 27, Is. 29. - Ст. 295303, DOI 10.1088/0953-8984/27/29/295303. - Cited References:52. - This work is supported by the Russian Science Foundation through Grant No. 14-12-00266. AS is grateful K-F Berggren for discussions. . - ISSN 0953. - ISSN 1361-648X
   Перевод заглавия: Управление резонансными ширинами в двух-коленных волноводах: связанные состояния в континууме

РУБ Physics, Condensed Matter
Рубрики:
CIRCULAR BENDS
   NUCLEAR REACTIONS
   FANO RESONANCES
   UNIFIED THEORY
   QUANTUM
   TRANSMISSION
   TRANSPORT
   SYSTEMS
Кл.слова (ненормированные):
double-bent waveguide -- effective non-Hermittian Hamiltonian -- bound -- states in the continuum
Аннотация: We consider quantum transmission through double-bend Pi- and Z-shaped waveguides controlled by the finger gate potential. Using the effective non-Hermitian Hamiltonian approach we explain the resonances in transmission. We show a difference in transmission in the short waveguides that is the result of different chirality in Z and Pi waveguides. We demonstrate that the potential selectively affects the resonant widths resulting in the occurrence of bound states in the continuum.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660080, Russia.

Доп.точки доступа:
Maksimov, D. N.; Максимов, Дмитрий Николаевич; Pilipchuk, A. S.; Пилипчук, Артем Сергеевич; Садреев, Алмаз Фаттахович; Russian Science Foundation [14-12-00266]
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14.

Ignatchenko, V. A.
Green’s functions of spin and electromagnetic waves in the sinusoidal superlattice / V. A. Ignatchenko, D. S. Tsikalov // Solid State Phenom. : Selected, peer reviewed papers. - 2015. - Vol. 233-234: Achievements in Magnetism. - P. 47-50, DOI 10.4028/www.scientific.net/SSP.233-234.47 . - ISSN 1662-9779. - ISSN 978-3-038
Кл.слова (ненормированные):
Continued fractions -- Electromagnetic waves -- Green’s functions -- Magnonic crystals -- Photonic crystals -- Sinusoidal modulation -- Spin waves -- Superlattices -- Circular waveguides -- Fourier transforms -- Green's function -- Photonic crystals -- Spin waves -- Superlattices -- Analytical expressions -- Continued fraction -- Fourier transformations -- Magnonic crystals -- S function -- Sinusoidal modulation -- Spectral representations -- Electromagnetic waves
Аннотация: The problem of finding the Green's function of spin and electromagnetic waves in the sinusoidal superlattice is considered. An analytical expression for the spectral representation of the Green's function has been found in the form of ascending continued fractions, the particular denominators of which are ordinary continued fractions. The Green’s function in the r -space has been found by the numerical Fourier transformation of the Greens’s function found in the spectral representation. © (2015) Trans Tech Publications, Switzerland.

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Доп.точки доступа:
Perov, N. \ed.\; Semisalova, A. \ed.\; Tsikalov, D. S.; Цикалов, Денис Сергеевич; Игнатченко, Вальтер Алексеевич; Moscow International Symposium on Magnetism(6 ; 2014 ; June-July ; Moscow)
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15.

    Bulgakov, E. N.
    Light-induced degeneracy of resonance modes in a nonlinear microcavity coupled with waveguides: Application to channel drop filter / E. N. Bulgakov, A. F. Sadreev // J. Opt. Soc. Am. B. - 2013. - Vol. 30, Is. 9. - P. 2549-2554, DOI 10.1364/JOSAB.30.002549 . - ISSN 0740-3224
   Перевод заглавия: Свето-индуцированное восстановления вырождения в нелинейном микрорезонаторе, связанного с волноводами: приложение к переключателю каналов
Кл.слова (ненормированные):
Channel drop filters -- Channel dropping -- Eigen modes -- Injected power -- Light-induced -- Parallel waveguides -- Resonance mode -- Two-dimensional photonic crystals -- Microcavities -- Natural frequencies -- Waveguides -- Waveguide filters
Аннотация: We consider a microcavity with degenerate dipole or hexapole eigenmodes. If the cavity is positioned between waveguides, degeneracy is lifted. However, we show that in a nonlinear microcavity the degeneracy is recovered at certain injected power. In application we consider a two-dimensional photonic crystal of GaAs rods holding two parallel waveguides and one defect made of Kerr media. We show that 100% efficiency channel dropping can be attained without a necessity to tune the resonant frequencies of the microcavity. В© 2013 Optical Society of America.

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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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16.

    Bulgakov, E. N.
    Channel dropping via bound states in the continuum in a system of two nonlinear cavities between two linear waveguides / E. N. Bulgakov, K. N. Pichugin, A. F. Sadreev // J. Phys.: Condens. Matter. - 2013. - Vol. 25, No. 39. - Ст. 395304. - P. , DOI 10.1088/0953-8984/25/39/395304 . - ISSN 0953-8984
   Перевод заглавия: Переключение каналов через связанные состояния в континууме в системе
Кл.слова (ненормированные):
Channel dropping -- Efficient channels -- Incident waves -- Linear waveguides -- Nonlinear cavities -- Numerical solution -- Parallel waveguides -- Two-dimensional photonic crystals -- Condensed matter physics -- Physics -- Waveguides
Аннотация: We show that two nonlinear resonant cavities aligned between two parallel waveguides can support self-induced bound states in the continuum (BSCs). These BSCs are symmetrical relative to an inversion of the waveguides and to inversion of the transport axis. Due to this BSCs can drop an incident wave from one waveguide to another with very high efficiency. We show also that the frequency of the efficient channel dropping can be tuned by injecting power. All these results are in good agreement with numerical solutions of the Maxwell equations in a two-dimensional photonic crystal of GaAs rods holding two parallel waveguides and two defects made of a Kerr medium. В© 2013 IOP Publishing Ltd.

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Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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17.

Pichugin, K. N.
Analysis of a channel-drop filter based on dispersive waveguides and two resonant cavities / K. N. Pichugin, A. F. Sadreev // J. Opt. - 2013. - Vol. 15, Is. 3. - Ст. 35502. - P. , DOI 10.1088/2040-8978/15/3/035502. - Cited References: 35. - The work is partially supported by RFBR grant 13-07-98018-a and RFBR grant 'Sibir' 13-07-00497 . - ISSN 2040-8978

РУБ Optics
Рубрики:
PHOTONIC CRYSTAL SLABS
   REFLECTION FEEDBACK
   MODES
   DESIGN
Кл.слова (ненормированные):
channel dropping -- dispersive waveguides -- optical micro-cavities
Аннотация: By use of coupled-mode theory we analyze a channel add-drop filter based on two dispersive waveguides symmetrically coupled with two resonant optical cavities. We show new solutions for the channel-drop filter processes compared to the solutions found by Manolatou et al (1999 IEEE J. Quantum Electron. 35 1322). For a special choice of the dispersion of the waveguides, we reveal a frequency region with sufficient total reflection.

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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Пичугин, Константин Николаевич
}
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18.

Рассказов, Илья Леонидович.
Transmission and spectral properties of short optical plasmon waveguides / I. L. Rasskazov, V. A. Markel, S. V. Karpov // Opt. Spectrosc. - 2013. - Vol. 115, Is. 5. - P. 666-674, DOI 10.1134/S0030400X13110180 . - ISSN 0030-400X
Аннотация: We study the spectral and transmission properties of optical waveguides in the form of different chain configurations of spherical Ag nanoparticles that can be synthesized under conditions of selective deposition on a dielectric substrate from a nanocolloid. В© 2013 Pleiades Publishing, Ltd.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Penn, Philadelphia, PA 19104 USA
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.
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19.

Bulgakov, E. N.
Ligth-induced breaking of symmetry in photonic crystal waveguides with nonlinear defects as a key for all-optical switching circuits / E. N. Bulgakov, A. F. Sadreev, K. N. Pichugin // Spontaneous symmetry breaking, self-trapping, and Josephson oscillations. - 2013. - P. 89-124. - (Progress in optical science and photonics ; Vol. 1), DOI 10.1007/10091_2011_1 . - ISSN 978-3-642
Аннотация: We consider light transmission in 2D photonic crystal waveguide coupled with two identical nonlinear defects positioned symmetrically aside the waveguide. We show that with growth of injected light power there is a breaking of symmetry by two ways. In the first way the symmetry is broken because of different light intensities at the defects. In the second way the intensities at the defects are equaled 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. As application of these phenomena we consider the symmetry breaking for the light transmission in a T-shaped photonic waveguide with two nonlinear defects. We demonstrate as this phenomenon can be explored for all-optical switching of light transmission from the left output waveguide to the right one by application of input pulses. Finally we consider the symmetry breaking in the waveguide coupled with single defect presented however by two dipole modes.

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Доп.точки доступа:
Malomed, Boris A. \ed.\; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Pichugin, K. N.; Пичугин, Константин Николаевич; Булгаков, Евгений Николаевич
}
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20.

Рассказов, Илья Леонидович.
Optical properties of the waveguides in the form of various configurations of arrays of nanoparticles, synthesized on the lectrostatical functionalized substrate / I. L. Rasskazov, I. V. Alecseenko, S. V. Karpov // Молодежь и наука [Электронный ресурс] : сборник материалов VIII Всероссийской научно-технической конференции студентов, аспирантов и молодых ученых, посвященной 155-летию со дня рождения К.Э.Циолковского. - Красноярск : СФУ, 2012

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Доп.точки доступа:
Alecseenko, I. V.; Алексеенко И.В.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.; Всероссийская научно-техническая конференция студентов, аспирантов и молодых ученых, посвященной 155-летию со дня рождения К.Э. Циолковского (8 ; 2012 ; апр. ; 19-27 ; Красноярск)
}
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