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Extraordinary transient nonlinear-optical processes on the spatially dispersive metasurfaces / A. K. Popov [et al.] // Progr. Electromag. Res. Symp. (PIERS) : Proceedings. - 2017. - P. . 10

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Доп.точки доступа:
Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Tkachenko, V. A.; Myslivets, S. A.; Мысливец, Сергей Александрович; Progress in Electromagnetics Research Symposium(38 ; 2017 ; May, 22 - 25 ; St Petersburg, Russia)
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Enhancing coherent nonlinear-optical coupling in hyperbolic metananowaveguides / A. K. Popov [et al.] // 13th Workshop and Top. Meet. Novel Opt. Materials and Applications : program. - 2017. - Nonlinear Optics. - P.

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Доп.точки доступа:
Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Tkachenko, V. A.; Myslivets, S. A.; Мысливец, Сергей Александрович; Novel Optical Materials and Applications, Workshop and Topical Meeting (13 ; 2017 ; 4-10 June ; Cetraro, Italy)
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Multilayered gold nanoshells with ideal absorption for plasmonic photothermal therapy / V. I. Zakomirnyi [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83, Вып. 6-16. - P. 177-178 . - ISSN 0514-7506
Аннотация: We study multilayered spherical nanoparticles with ideal absorption [1] for biomedical applications. The core of such particles consists of Si, SiO2 or alternative plasmonic materials [2], such as zinc oxide doped with aluminum, gallium and indium tin oxide whereas the outer shell consists of gold. We develop the algorithm for finding optimal geometry of ideally absorbing Au nanoparticles taking into account the quantum size effect that in multilayered metallic nanoshells plays a significant role.

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Доп.точки доступа:
Zakomirnyi, V .I.; Rasskazov, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; 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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Multiple nonlinear Bragg diffraction of femtosecond laser pulses in a χ(2) photonic lattice with hexagonal domains / A. M. Vyunishev [et al.] // Laser Phys. Lett. - 2018. - Vol. 15, Is. 4. - Ст. 045401, DOI 10.1088/1612-202X/aaa618. - Cited References:26. - The work was supported by the Russian Foundation for Basic Research through grant 15-02-03838. ISB, ARA and VYS acknowledge the support of the Government of the Russian Federation (Act 211, Agreement 02.A03.21.0006). . - ISSN 1612-2011. - ISSN 1612-202X

РУБ Optics + Physics, Applied
Рубрики:
RAMAN-NATH DIFFRACTION
STRUCTURED FUNDAMENTAL WAVE
2ND-HARMONIC
Кл.слова (ненормированные):
nonlinear Bragg diffraction -- nonlinear photonic lattice -- second harmonic -- generation -- femtosecond pulses
Аннотация: The frequency doubling of femtosecond laser pulses in a two-dimensional (2D) rectangular nonlinear photonic lattice with hexagonal domains is studied experimentally and theoretically. The broad fundamental spectrum enables frequency conversion under nonlinear Bragg diffraction for a series of transverse orders at a fixed longitudinal quasi-phase-matching order. The consistent nonstationary theory of the frequency doubling of femtosecond laser pulses is developed using the representation based on the reciprocal lattice of the structure. The calculated spatial distribution of the second-harmonic spectral intensity agrees well with the experimental data. The condition for multiple nonlinear Bragg diffraction in a 2D nonlinear photonic lattice is offered. The hexagonal shape of the domains contributes to multibeam second harmonic excitation. The maximum conversion efficiency for a series of transverse orders in the range 0.01%-0.03% is obtained.

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Держатели документа:
Kirensky Inst Phys, Fed Res Ctr KSC SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660079, Russia.
Ural Fed Univ, Sch Nat Sci & Math, Ekaterinburg 620000, Russia.
Labfer Ltd, Ekaterinburg 620014, Russia.
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia.
Moscow MV Lomonosov State Univ, Int Laser Ctr, Moscow 119992, Russia.

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Baturin, I. S.; Akhmatkhanov, A. R.; Shur, V. Ya; Chirkin, A. S.; Russian Foundation for Basic Research [15-02-03838]; Government of the Russian Federation (Act 211) [02.A03.21.0006]
}
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Stability of the superconducting d-wave pairing towards the Coulomb repulsions in cuprate superconductors / V. V. Val'kov [и др.] // VI International symposium on strong nonlinear vibronic and electronic interactions in solids : book of abstracts . - 2018. - P. 33

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Доп.точки доступа:
Val'kov, V. V.; Вальков, Валерий Владимирович; Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Korovushkin, M. M.; Коровушкин, Максим Михайлович; Barabanov, A. F.; International symposium on strong nonlinear vibronic and electronic interactions in solids(6 ; 2018 ; April 28-May 1 ; Tartu, Estonia)
}
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Shaping light in backward-wave nonlinear hyperbolic metamaterials / A. K. Popov [et al.] // Photonics. - 2018. - Vol. 5, Is. 2. - Ст. 8, DOI 10.3390/photonics5020008. - Cited References: 46. - Alexander K. Popov acknowledges support by the U. S. Army Research Office under grant number W911NF-14-1-0619. Vitaly V. Slabko acknowledges support by the Ministry of Education and Science of the Russian Federation (project # 3.6341.2017/6.7). . - ISSN 2304-6732

РУБ Optics
Рубрики:
NEGATIVE-INDEX METAMATERIALS
OPTICAL PARAMETRIC OSCILLATOR
Кл.слова (ненормированные):
optical metamaterials -- fundamental concepts in photonics -- light-matter -- interactions at the subwavelength and nanoscale -- fundamental -- understanding of linear and nonlinear optical processes in novel metamaterials underpinning photonic devices and components -- advancing the frontier of nanophotonics with the associated nanoscience and nanotechnology -- nanostructures that can serve as building blocks for nano-optical systems -- use of nanotechnology in photonics -- nonlinear nanophotonics -- plasmonics and excitonics -- subwavelength components and negative index materials -- slowing, store, and processing light pulses -- materials for optical sensing, for tunable optical delay lines, for optical buffers, for high extinction optical switches, for novel image processing hardware, and for highly-efficient wavelength converters
Аннотация: Backward electromagnetic waves are extraordinary waves with contra-directed phase velocity and energy flux. Unusual properties of the coherent nonlinear optical coupling of the phase-matched ordinary and backward electromagnetic waves with contra-directed energy fluxes are described that enable greatly-enhanced frequency and propagation direction conversion, parametrical amplification, as well as control of shape of the light pulses. Extraordinary transient processes that emerge in such metamaterials in pulsed regimes are described. The results of the numerical simulation of particular plasmonic metamaterials with hyperbolic dispersion are presented, which prove the possibility to match phases of such coupled guided ordinary and backward electromagnetic waves. Particular properties of the outlined processes in the proposed metamaterial are demonstrated through numerical simulations. Potential applications include ultra-miniature amplifiers, frequency changing reflectors, modulators, pulse shapers, and remotely actuated sensors.

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Держатели документа:
Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA.
Russian Acad Sci, LV Kirensky Inst Phys, Dept Coherent & Nonlinear Opt, Fed Res Ctr,Siberian Branch,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Univ Missouri, Off Chancellor, St Louis, MO 63121 USA.

Доп.точки доступа:
Popov, A. K.; Myslivets, S. A.; Мысливец, Сергей Александрович; Slabko, V. V.; Tkachenko, V. A.; George, T. F.; U. S. Army Research Office [W911NF-14-1-0619]; Ministry of Education and Science of the Russian Federation [3.6341.2017/6.7]
}
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Pyatnov, M. V.
Tunable hybrid optical modes in a bounded cholesteric liquid crystal with a twist defect / M. V. Pyatnov, S. Y. Vetrov, I. V. Timofeev // Phys. Rev. E. - 2018. - Vol. 97, Is. 3. - Ст. 032703, DOI 10.1103/PhysRevE.97.032703. - Cited References:47. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund for the research Projects No. 17-42-240464 and No. 18-42-243025. . - ISSN 2470-0045. - ISSN 2470-0053

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
SCULPTURED THIN-FILMS
   STRUCTURE ADJACENT
   TAMM PLASMONS
   STATES
   METAL
Аннотация: Coupling between the defect mode of a cholesteric liquid crystal and the localized mode of a cholesteric liquid crystal-phase plate-metal structure is theoretically demonstrated. It is shown that the transmittance spectrum can be tuned by changing the twist-defect angle and helix pitch, which are governed by external factors. The spectra for different circular polarizations of the incident light are different; specifically, at the nondiffracting polarization, there is no defect-mode transmittance peak.

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Держатели документа:
Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
SB RAS, Fed Res Ctr KSC, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [17-42-240464, 18-42-243025]
}
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    Scattering by polymer-dispersed liquid crystal films / V. A. Loiko [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83: Спецвыпуск, Вып. 6-16, Ч. III-IV. - P. 544-545 . - ISSN 0514-7506
   Перевод заглавия: Рассеяние пленками капсулированного в полимере жидкого кристалла
Аннотация: Scattering and transmittance of films containing liquid crystal droplets with homogeneous and inhomogeneous adhesion on the interface polymer-liquid crystal is investigated by the anomalous diffraction and interference approximations. Point asymmetry in angular pattern is discussed.

РИНЦ

Доп.точки доступа:
Loiko, V. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Miskevich, A. A.; Konkolovich, A. V.; 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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Popov, A. K.
Generation, amplification, frequency conversion, and reversal of propagation of THz photons in nonlinear hyperbolic metamaterial / A. K. Popov, S. A. Myslivets // Opt. Lett. - 2017. - Vol. 42, Is. 20. - P. 4151-4154, DOI 10.1364/OL.42.004151. - Cited References: 13. - Army Research Office (ARO) (W911NF-14-1-0619); Russian Foundation for Basic Research (RFBR) (15-02-03959A). The authors thank I. S. Nefedov for helpful discussions. . - ISSN 0146-9592
Кл.слова (ненормированные):
Carbon -- Metamaterials -- Optical frequency conversion -- Photons -- Terahertz waves -- Yarn -- Directed energy -- Electromagnetic modes -- Entangled photons -- Nonlinear hyperbolic -- Optical parametric amplification -- Proof of principles -- Three wave mixing -- THz photon -- Optical parametric amplifiers
Аннотация: We propose metamaterial (MM) that supports a mixture of three or more normal and backward electromagnetic modes with equal co-directed phase velocities and mutually contra-directed energy fluxes. This enables extraordinary three-wave mixing, greatly enhanced optical parametric amplification, and frequency-changing generation of entangled photons in the reflection direction. Proof-of-principle numerical simulation of such processes is presented based on the particular example of the wave-guided terahertz waves contra-propagating in the MM made of carbon nanotubes.

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Держатели документа:
Birck Nanotechnology Center, Purdue University, West Lafayette, IN, United States
Kirensky Institute of Physics, Federal Research Center KSC, SB RAS, 50, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodny Av., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович
}
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10.

    LiGaTe2 (LGT) nonlinear crystal: Synthesis and crystal growth processes exploration / S. A. Grazhdannikov [et al.] // Mater. Sci. Semicond. Process. - 2017. - Vol. 72. - P. 52-59, DOI 10.1016/j.mssp.2017.09.017. - Cited References: 34. - This work was supported by the Russian Foundation for Basic Research (Grant no. 15-02-03408a), by the Ministry of Education and Science of the Russian Federation (# 4.1346.2017/4.6), by Act 211 of the Government of the Russian Federation (Contract # 02.A03.21.0011) and by State Assignment Project (# 0330-2016-0009). The authors also thank D. A. Nagorskiy for help with DTA and N. F. Beyzel and A. R. Tsygankova for help in chemical analysis. . - ISSN 1369-8001
   Перевод заглавия: LiGaTe2 (LGT) нелинейный кристалл: синтез и процессы роста кристаллов
Кл.слова (ненормированные):
LiGaTe2 crystal -- Synthesis -- Crystal growth -- Crystal growth simulation -- Synthesis -- X-ray diffraction
Аннотация: The LiGaTe2 (LGT) single crystal up to 12 mm in size was grown in 3 stages: synthesis, homogenization and crystal growth. The initial charge with 6–10 at% excess of Li2Te was produced by melting elementary Li, Ga and Te components. The homogenization step was carried out with the maximum value of melt overheating not exceeding 50 K. The Bridgman-Stockbarger technique was used to grow the LiGaTe2 crystals. A furnace of special design, providing the enlargement of LGT linear size, was used. At each stage (synthesis, homogenization and crystal growth) the DTA analysis was carried out: during heating and cooling we recorded peaks corresponding to melting or crystallization of different components in the charge, such as Te0 (melting point 739 K) and LiGaTe2 (melting point 945 K) and in the as-grown crystal. The XRD analysis was also carried out at each technological stage. The analysis showed that there are 2 side phases (Te0, Ga2Te3), and their phase contents decrease to 1.2 at%, while the LiGaTe2 phase increases up to 93.5 at% during the homogenization process. The synthesized charge composition was analyzed by flame photometry (for Li) and atomic absorption (for Ga and Te). To provide a flat crystallization front and optimal conditions for crystal growth, spatial distribution of thermal field in the furnace was simulated. Transmission spectrum was recorded for the as-grown LGT crystal.

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Держатели документа:
Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, 3 Acad. Koptyug Avenue, Novosibirsk, Russian Federation
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 3 Acad. Lavrentiev Avenue, Novosibirsk, Russian Federation
Novosibirsk State University, 2 Pirogova Str., Novosibirsk, Russian Federation
South Ural State University, 76 Lenin Avenue, Chelyabinsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Akademgorodok Str. 50/38, Krasnoyarsk, Russian Federation
Far Eastern State Transport University, 47 Serysheva Str., Khabarovsk, Russian Federation
Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, Russian Federation

Доп.точки доступа:
Grazhdannikov, S. A.; Krinitsyn, P. G.; Kurus, A. F.; Isaenko, L. I.; Yelisseyev, A. P.; Molokeev, M. S.; Молокеев, Максим Сергеевич
}
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11.

    Semianalytical method to describe small-angle scattering of light by monolayer of polydisperse nematic droplets / V. A. Loiko [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83: Спецвыпуск, Вып. 6-16, Ч. III-IV. - P. 525-526 . - ISSN 0514-7506
   Перевод заглавия: Полуаналитический метод описания малоуглового рассеяния света монослоем полидисперсных нематических капель
Аннотация: The approach to describe light scattering by a monolayer of nematic droplets which takes into account shape, anisotropy, director configuration, size distribution, orientation of droplets is worked out and compared with the experimental data.

РИНЦ

Доп.точки доступа:
Konkolovich, A. V.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Miskevich, A. A.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Loiko, V. A.; 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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12.

Surface plasmon resonance of aU nanoparticles in the vicinity of the melting temperature / V. S. Gerasimov [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83, Вып. 6-16. - P. 103-104 . - ISSN 0514-7506
Аннотация: We have demonstrated experimentally the significant suppression of resonant propertiesof single Au nanoparticles at thesurface plasmonfrequency during heating and subsequent transition to the liquid state.

РИНЦ

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Rasskazov, I. L.; Zakomirnyi, V. I.; 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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13.

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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14.

    Electrically induced structure transition in nematic liquid crystal droplets with conical boundary conditions / V. Y. Rudyak [et al.] // Phys. Rev. E. - 2017. - Vol. 96, Is. 5. - Ст. 052701, DOI 10.1103/PhysRevE.96.052701. - Cited References:36. - This study was supported by the joint project of the Russian Science Foundation (Project No. 16-43-03010) and Ministry of Science and Technology of Taiwan (Contract No. MOST 105-2923-E-006-007). The simulations have been performed using the facilities of the Lomonosov Moscow State University Research Computational Center [37]. . - ISSN 2470-0045. - ISSN 2470-0053
   Перевод заглавия: Электроиндуцируемый структурный переход в каплях нематического жидкого кристалла с коническими граничными условиями

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
RIGIDLY FIXED POLES
   FRIEDERICKSZ THRESHOLD
   ISOTROPIC LIQUID
   FIELD
Аннотация: Polymer-dispersed liquid crystal composites have been a focus of study for a long time for their unique electro-optical properties and manufacturing by "bottom-up" techniques at large scales. In this paper, nematic liquid crystal oblate droplets with conical boundary conditions (CBCs) under the action of electric field were studied by computer simulations and polarized optical microscopy. Droplets with CBCs were shown to prefer an axial-bipolar structure, which combines a pair of boojums and circular disclinations on a surface. In contrast to droplets with degenerate planar boundary conditions (PBCs), hybridization of the two structure types in droplets with CBCs leads to a two-minima energy profile, resulting in an abrupt structure transition and bistable behavior of the system. The nature of the low-energy barrier in droplets with CBCs makes it highly sensitive to external stimuli, such as electric or magnetic fields, temperature, and light. In particular, the value of the electric field of the structure reorientation in droplets with CBCs was found to be a few times smaller than the one for droplets with PBCs, and the droplet state remained stable after switching off the voltage.

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Держатели документа:
Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys,Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Natl Cheng Kung Univ, Dept Chem Engn, Tainan, Taiwan.

Доп.точки доступа:
Rudyak, V. Yu.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Liu, J. H.; Emelyanenko, A. V.; Khokhlov, A. R.; Russian Science Foundation [16-43-03010]; Ministry of Science and Technology of Taiwan [MOST 105-2923-E-006-007]
}
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15.

Second harmonic generation in thin permalloy film / P. N. Solovev, A. O. Afonin, B. A. Belyaev [et al.] // J. Phys. D. - 2021. - Vol. 54, Is. 42. - Ст. 425002, DOI 10.1088/1361-6463/ac1762. - Cited References: 43. - This work was supported by the Russian Science Foundation under Grant No. 19-72-10047. The equipment of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center 'Krasnoyarsk Science Center SB RAS' was used during the measurement . - ISSN 0022-3727. - ISSN 1361-6463

РУБ Physics, Applied
Рубрики:
FERROMAGNETIC-RESONANCE
   MAGNETIZATION DYNAMICS
   HARMONIC-GENERATION
   FERRITES
Кл.слова (ненормированные):
ferromagnetic resonance -- frequency doubling -- nonlinear dynamics -- thin magnetic film -- second harmonic
Аннотация: Second harmonic generation versus strength and direction of the applied static magnetic field was measured for a thin permalloy (Ni80Fe20) film in a microstrip line at a driving frequency of 1 GHz and maximum input power of ~110 mW. The measurements revealed two peaks in the double frequency signal—in the low static field (~10 Oe) and the high one (~45 Oe). To explain these findings, a macrospin model of a thin magnetic film with in-plane uniaxial magnetic anisotropy was considered. A perturbation expansion of the Landau–Lifshitz–Gilbert equation provided an explanation of the experimental data. The analysis of the model revealed that the low-field peak was caused by the longitudinal second-order magnetization component and the high-field peak by the transversal one. It was also shown that the uniaxial magnetic anisotropy of the film and the dependence of the magnetic damping parameter on the applied field play an important role in the process of the second harmonic generation. The results obtained give insights into some peculiarities of the nonlinear magnetization dynamics that are important in the development of magnetic film-based devices in the field of microwave signal processing and manipulation.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50-38 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Afonin, A. O.; Афонин, Алексей Олегович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович; Govorun, I. V.; Говорун, Илья Валерьевич; Izotov, A. V.; Изотов, Андрей Викторович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Leksikov, An. A.; Лексиков, Андрей Александрович; Russian Science FoundationRussian Science Foundation (RSF) [19-72-10047]
}
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16.

Light-induced ultrafast dynamics of spin crossovers under high pressure / Y. S. Orlov, S. V. Nikolaev, A. I. Nesterov, S. G. Ovchinnikov // J. Exp. Theor. Phys. - 2021. - Vol. 132, Is. 3. - P. 399-415, DOI 10.1134/S1063776121030079. - Cited References: 71. - The authors thank the Russian Scientific Foundation for the financial support under the grant 18-12-00022 . - ISSN 1063-7761
Кл.слова (ненормированные):
Crossover pressure -- High-spin ground state -- Magnetic insulator -- Metal-oxygen bonds -- Nonlinear oscillation -- Occupation numbers -- Temperature values -- Ultra-fast dynamics -- Spin fluctuations
Аннотация: Within the multielectron model of magnetic insulator with two different spin terms at each cation and spin crossover under high pressure we have studied dynamics of a sudden excited non equilibrium spin state. We obtain the different relaxation of the magnetization, high spin/low spin occupation numbers, and the metal-oxygen bond length for different values of the external pressure. For each pressure-temperature values stationary state agrees to the mean field phase diagrams. We found the long living oscillations of magnetization for the high spin ground state at small pressure. Close to crossover pressure the smooth relaxation is accompanied with a set of sharp strongly non linear oscillations of magnetization and HS/LS occupation numbers that are accompanied by the Franck–Condon resonances.

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Публикация на русском языке Светоиндуцированная сверхбыстрая динамика систем со спиновым кроссовером при высоком давлении [Текст] / Ю. С. Орлов, С. В. Николаев, А. И. Нестеров, С. Г. Овчинников // Журн. эксперим. и теор. физ. - 2021. - Т. 159 Вып. 3. - С. 479-499

Держатели документа:
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
CUCEI, Universidad de Guadalajara, Guadalajara, Jalisco CP 44420, Mexico

Доп.точки доступа:
Orlov, Yu. S.; Орлов, Юрий Сергеевич; Nikolaev, S. V.; Николаев, Сергей Викторович; Nesterov, A. I.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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17.

Theoretical study of the frequency multiplier based on irregular quarter-wavelength microstrip resonator with thin magnetic film / B. A. Belyaev, A. V. Izotov, A. A. Leksikov [et al.] // Russ. Phys. J. - 2021. - Vol. 63, Is. 9. - P. 1447-1460, DOI 10.1007/s11182-021-02191-y. - Cited References: 21 . - ISSN 1064-8887
Кл.слова (ненормированные):
microstrip resonator -- thin magnetic film -- frequency multiplication -- nonlinear magnetization oscillations
Аннотация: The characteristics of a frequency doubler on a resonant microstrip structure with a thin magnetic film were studied theoretically. The electrodynamic calculation of the structure was performed within the quasi-static approximation. Nonlinear response of film magnetization was calculated taking into account the second-order terms in the Landau-Lifshitz equation. The frequency response of the microstrip resonator was calculated. It was shown that due to the use of the resonant circuit, high efficiency of the input signal energy conversion into the output signal at a doubled frequency was achieved. The optimal values of the magnitude and direction of an external static magnetic field, which ensure the maximum output power at a doubled frequency, were determined.

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Публикация на русском языке Теоретическое исследование умножителя частоты на основе нерегулярного четвертьволнового микрополоскового резонатора с тонкой магнитной пленкой [Текст] / Б. А. Беляев, А. В. Изотов, А. А. Лексиков [и др.] // Изв. вузов. Физика. - 2020. - Т. 63 № 9. - С. 3-14

Держатели документа:
Kirensky Institute of Physics of the Siberian Branch of the Russian Academy of Sciences – Division of Federal Research Center “Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Belyaev, B. A.; Беляев, Борис Афанасьевич; Izotov, A. V.; Изотов, Андрей Викторович; Leksikov, An. A.; Лексиков, Андрей Александрович; Solovev, P. N.; Соловьев, Платон Николаевич; Tyurnev, V. V.; Тюрнев, Владимир Вениаминович
}
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18.

    Nonlinear-optical metamirror [Text] / A. K. Popov, S. A. Myslivets // Appl. Phys. A-Mater. Sci. Process. - 2011. - Vol. 103, Is. 3. - P725-729, DOI 10.1007/s00339-010-6218-7. - Cited Reference Count: 19. - Гранты: This material is based upon work supported by the U.S. Army Research Laboratory and by the U.S. Army Research Office under grant number W911NF-0710261, by the National Science Foundation under Grant No. ECCS-1028353, by the Siberian Division of the Russian Academy of Sciences under Integration Project No 5 and by the Presidium of the Russian Academy of Sciences under Grant No 27.1. - Финансирующая организация: U.S. Army Research Laboratory; U.S. Army Research Office [W911NF-0710261]; National Science Foundation [ECCS-1028353]; Siberian Division of the Russian Academy of Sciences [5]; Presidium of the Russian Academy of Sciences [27.1] . - JUN. - ISSN 0947-8396
Рубрики:
NEGATIVE-INDEX METAMATERIALS
   LEFT-HANDED METAMATERIALS
   SPLIT-RING RESONATORS
   2ND-HARMONIC GENERATION
Кл.слова (ненормированные):
all-optical data processing -- micro mirror -- negative-index -- bionics -- electromagnetic waves -- metamaterials -- optical data processing -- data handling
Аннотация: The possibility of creation of highly efficient frequency-tunable nonlinear-optical micromirror and all-optical data processing microchip is shown, which utilizes backwardness of electromagnetic waves in negative-index metamaterials.

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Держатели документа:
Univ Wisconsin, Stevens Point, WI 54481 USA
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk, Russia
Siberian Fed Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Popov, A.K.; Myslivets, S.A.
}
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19.

K2(l-x)Rb2xA12B207, 0x0.75: nonlinear optical borates [Text] / V. G. Grossman, B. G. Bazarov, V. V. Atuchin [et al.] // International Conference on Minerals and Materials / International Conference on Minerals and Materials (2011 ; Sep. ; 29-30, ; Ulaanbaatar, Mongolia). - 2011. - P90-92

https://www.sites.google.com/site/mmcem2011/abstracts

Доп.точки доступа:
Grossman, V.G.; Bazarov, B.G.; Atuchin, V.V.; Molokeev, M.S.; Bazarova, J.G.; Gavrilova, T.A.; International Conference on Minerals and Materials(2011 ; Sep. ; 29-30, ; Ulaanbaatar, Mongolia)
}
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20.

Symmetry breaking in a T-shaped photonic waveguide coupled with two identical nonlinear cavities / E. Bulgakov, A. Sadreev // Phys. Rev. B Condens. Matter Mater. Phys. - 2011. - Vol. 84, Is. 15. - Ст. 155304. - P155304, DOI 10.1103/PhysRevB.84.155304 . - ISSN ISBN- 109
Аннотация: We consider light transmission in a T-shaped photonic waveguide coupled with two identical symmetrically positioned nonlinear microcavities. We present two types of symmetry breaking. The first one is a result of mixing of the symmetric input wave with antisymmetric bound states in the Fabry-Pérot interferometer architecture. Similarly, the second mechanism of the symmetry breaking is the result of mixing the symmetrical input wave with the antibonding bound state in a straight waveguide coupled with two cavities positioned perpendicular to the waveguide. In both cases the mixing is due to nonlinearity. In turn, the symmetry-breaking solutions give rise to nonsymmetrical outputs in the T-shape waveguide. These effects are directly demonstrated by the electromagnetic field solutions which are complimented by coupled mode theory for the light transmission. © 2011 American Physical Society.

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Держатели документа:
Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk Rabochii, 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bulgakov, E. N.; Булгаков, Евгений Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович
}
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