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    Soft photonic crystals and metamaterials / ed., pref.: I. V. Timofeev, W. Lee, Special issue of the "Materials" (ISSN 1996-1944) 2022, 15(22), 8096. - Bazel[etc.] : MDPI, 2022. - VII, 127 p. - ISBN 978-3-0365-6074-8. - ISBN 978-3-0365-6073-1 : Б. ц.
Перевод заглавия: Мягкие фотонные кристаллы и метаматериалы
Публикация в журнале . - [S. l. : s. n.]
. - [S. l. : s. n.]
. - [S. l. : s. n.]
. - [S. l. : s. n.]
    Содержание:
Timofeev, I. V. Special issue: Soft photonic crystals and metamaterials : Reprinted from: Materials 2022, 15, 8096, doi:10.3390/ma15228096 / I. V. Timofeev, W. Lee. - P .1-4. - Cited References: 10
Bikbaev, R. G. Double-resolved beam steering by metagrating-based Tamm plasmon polariton : Reprinted from: Materials 2022, 15, 6014, doi:10.3390/ma15176014 / R. G. Bikbaev, D. N. Maksimov, K. - P. Chen, I. V. Timofeev. - P .89-95
Другие авторы: Maksimov D. N., Chen K. - P., Timofeev I. V.
Avdeeva, A. Yu. Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror : Reprinted from: Materials 2020, 13, 3255, doi:10.3390/ma13153255 / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.]. - P .109-118. - Cited References: 44
Другие авторы: Vetrov S. Ya., Bikbaev R. G., Pyatnov M. V., Rudakova N. V., Timofeev I.V.
Lin, M. -Y. Chiral-selective Tamm plasmon polaritons : Reprinted from: Materials 2021, 14, 2788, doi:10.3390/ma14112788 / M. -Y. Lin, W. -H. Xu, R. G. Bikbaev [et al.]. - P .119-127. - Cited References: 46
Другие авторы: Xu W. -H., Bikbaev R. G., Yang J.-H., Li C. -R.
   Перевод заглавия: Мягкие фотонные кристаллы и метаматериалы

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Публикация в журнале Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror [Текст] / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.] // Materials. - 2020. - Vol. 13 Is. 15.- Ст.3255

Chiral-selective Tamm plasmon polaritons [Текст] / M.-Y. Lin, W.-H. Xu, R. G. Bikbaev [et al.] // Materials. - 2021. - Vol. 14 Is. 11.- Ст.2788

Double-resolved beam steering by metagrating-based Tamm plasmon polariton [Текст] / R. G. Bikbaev, D. N. Maksimov, K.-P. Chen, I. V. Timofeev // Materials. - 2022. - Vol. 15 Is. 17.- Ст.6014

Timofeev I. V. Special issue: Soft photonic crystals and metamaterials [Текст] / I. V. Timofeev, W. Lee // Materials. - 2022. - Vol. 15 Is. 22.- Ст.8096

Держатели документа:
Kirensky Institute of Physics FRC KSC SB RAS
Siberian Federal University
National Yang Ming Chiao Tung University Tainan Taiwan

Доп.точки доступа:
Timofeev, I. V. \ed., pref.\; Тимофеев, Иван Владимирович; Lee, Wei \ed., pref.\; Timofeev, I. V.; Pyatnov, M. V.; Rudakova, N. V.; Yang, J. -H.; Li, C. -R.
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    International workshop on actual problems of condensed matter physics : Program. Book of abstracts / Fed. Res. Center KSC SB RAS, Kirensky Inst. of phys., Sib. Fed. Univ. ; предс. прогр. ком. S. G. Ovchinnikov. - Krasnoyarsk : [s. n.], 2017. - 30 p.
    Содержание:
Bondarev, I. A. Magnetic and transport properties of the epitaxial Fe3Si film on a Si substrate / I. A. Bondarev. - P .25
Yakovlev, I. A. The magnetic anisotropy of the Fe and Fe(1-x)Si(x) thin films depend on / I. A. Yakovlev [и др.]. - P .12
Другие авторы: Belyaev B. A., Rautskii M. V., Tarasov, I. A., Varnakov S. N, Ovchinnikov, S. G.
Popkov, S. I. Inverted opals as the Josephson networks of weak links : Invited / S. I. Popkov [и др.]. - P .24
Другие авторы: Gokhfeld D. M., Bykov A., Mistonov A., Shabanov A., Terentiev K.
Nikolaev, S. Electronic structure and Fermi surface within the cluster perturbation theory in X-operators representation : Invited / S. Nikolaev, V. I. Kuz'min, S. G. Ovchinnikov. - P .27
Fedorov, A. S. DFT investigation of electronic and optical magnetic properties of one dimensional transition metal halide structuresTmHaI3 : Invited / A. S. Fedorov [и др.]. - P .20
Другие авторы: Kuzubov A. A., Kovaleva E. A., Popova M. I., Kholtobina A. S., Mikhaleva N. S., Visotin M. A.
Ovchinnikov, S. G. Effect of interatomic exchange interaction on spin crossover and Mott-Hubbard transition under high pressure and the physical properties of the low Earth’s mantle : Invited / S. G. Ovchinnikov [и др.]. - P .26
Другие авторы: Orlov Yu. S., Nikolaev S., Nesterov A., Ovchinnikova T.
Tarasov, I. A. Extremely high magnetic-field sensitivity of charge transport in the Mn/SiO2/p-Si hybrid structure / I. A. Tarasov [и др.]. - P .21
Другие авторы: Smolyakov D. A., Rautskii M. V., Lukyanenko A. V., Yakovlev I. A., Ovchinnikov S. G., Volkov N. V.
Volkov, N. V. Marnetic-field sensitivity of charge transport in silicon-based hybrid structures : Invited / N. V. Volkov [et al.]. - P .10
Другие авторы: Tarasov A. S., Rautskii M. V., Lukyanenko A. V., Varnakov S. N., Bondarev I. A., Ovchinnikov S. G.
Lukyanenko, A. V. Fabrication of multi-terminal planar devices based on epitaxial Fe1-xSix films grown on Si(111) / A. V. Lukyanenko, A. S. Tarasov, I. A. Tarasov [et al.] ; A. V. Luyanenko [и др.]. - P .28
Другие авторы: Tarasov A. S., Tarasov I. A., Bondarev I. A., Smolyarova T. E., Yakovlev I. A., Volochaev M. N., Varnakov S. N., Ovchinnikov S. G., Volkov N. V.
Rautskii, M. V. Magnetic field-driven lateral photovoltaic effect in the Fe/SiO2/p-Si hibrid structure with the Scottky barrier / M. V. Rautskii [и др.]. - P .29
Другие авторы: Tarasov A. S., Varnakov S. N., Bondarev I. A., Volochaev M. N., Lukyanenko A. V., Volkov N. V.
Moryachkov, R. Small angle X-ray scattering and atomic structure of aptamer biomolecules / R. Moryachkov [и др.]. - P .14-15
Другие авторы: Tomilin F. N., Shchugoreva I., Spiridonova V., Peters G., Zabluda V.
Tarasov, I. A. Iron silicides and pure iron epitaxial and highly-textured nanostructures on silicon: growth and their physical properties : Invited / I. A. Tarasov [и др.]. - P .23
Другие авторы: Visotin M. A., Solovyov L. A., Rautskii M. V., Zhandun, V. S., Nemtsev I. V., Yakovlev I. A., Varnakov S. N, Ovchinnikov, S. G.
Sokolov, A. E. Magnetic nanoparticles and DNA-aptamers conjugates for diagnostics and therapy of cancer : Invited / A. E. Sokolov [и др.]. - P .13
Другие авторы: Zamay S., Zamay T., Svetlichnyi V., Velikanov D.
Sandalov, I. S. The microscopic origin of ferromagnetism in Fe silicides : Invited / I. S. Sandalov [и др.]. - P .16
Другие авторы: Zamkova N. G., Zhandun V. S., Ovchinnikov, S. G.

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

Доп.точки доступа:
Ovchinnikov, S. G. \предс. прогр. ком.\; Овчинников, Сергей Геннадьевич; Lukyanenko, A. V.; Varnakov, S. N.; Bondarev, I. A.; Ovchinnikov, S. G.; Tarasov, I. A.; Svetlichnyi, V.; Velikanov, D. A.; Spiridonova, V.; Peters, G.; Zabluda, V. N.; Popova, M. I.; Kholtobina, A. S.; Mikhaleva, N. S.; Visotin, M. A.; Yakovlev, I. A.; Volkov, N. V.; Rautskii, M. V.; Zhandun, V. S.; Nemtsev, I. V.; Varnakov, S. N; Mistonov, A.; Shabanov, A. V.; Terentiev, K. Yu.; Nesterov, A.; Ovchinnikova, T.; Smolyarova, T. E.; Volochaev, M. N.; Federal Research Center KSC SB RAS; Kirensky Institute of Physics; Siberian Federal Univercity; International Workshop on Actual Problems of Condensed Matter Physics (27 Mar. - 1 Apr. 2017 ; Krasnoyarsk / Cheremushki)
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Electro-optical response of a monolayer polymer dispersed nematic liquid crystal film doped with surfactant / V. A. Loiko, A. V. Konkolovich, A. A. Miskevich [et al.] // Liquid Crystal Polymer Nanocomposites : Woodhead Publishing, 2022. - Chapter 7. - P. 163-211, DOI 10.1016/B978-0-12-822128-0.00006-6. - Cited References: 86
Кл.слова (ненормированные):
Polymer dispersed liquid crystal film -- Liquid crystal droplet -- Transmission -- Angular distribution of scattered light -- Quenching effect -- Symmetry breaking effect -- Photonic band gap
Аннотация: Light scattering and transmission by a monolayer polymer dispersed liquid crystal film containing liquid crystal droplets with inhomogeneous anchoring of liquid crystal molecules at the polymer-droplet interface is considered theoretically and experimentally. The developed optical model is based on the anomalous diffraction and interference approximations of the theory of scattering of waves. It is applied to describe the interference quenching effect for the coherently transmitted light and electrically controllable symmetry breaking effect in small-angle structure of light scattered by film containing droplets with inhomogeneous anchoring. The analysis of transmittance and reflectance of the one-dimensional photonic crystals composed of monolayers is carried out. The formation of the photonic band gaps is analyzed.

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Держатели документа:
Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus
Kirensky Institute of Physics, Federal Research Center-Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation
Military Academy of the Republic of Belarus, Belarus

Доп.точки доступа:
Loiko, V. A.; Konkolovich, A. V.; Miskevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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    Nonlinear optical properties of organic dye vapors [Preprint] : preprint. № 701Ф / S. V. Karpov, S. A. Myslivets, A. K. Popov, V. V. Slabko. - Красноярск : ИФ СО АН СССР, 1991. - 41 p. - Cited References. - 70 экз.
Перевод заглавия: Нелинейные оптические свойства органических красящих паров
   Перевод заглавия: Нелинейные оптические свойства органических красящих паров

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

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Popov, A. K.; Попов, Александр Кузьмич; Slabko, V. V.; Слабко, Виталий Васильевич; Академия наук СССР; Сибирское отделение АН СССР; Институт физики им. Л.В. Киренского Сибирского отделения АН СССР
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   В37
   M17


    Magnetic and magneto-optical properties of the Pr0.8Sr0.2MnO3 and Pr0.6Sr0.4MnO3 thin films [Preprint] : препринт. 854Ф / Yu. Greben'kova [et al.]. - Krasnoyarsk, 2014. - 16 p. - Bibliogr. - 40 экз. -

ГРНТИ

29.19.16

29.19.37

29.31.21

Рубрики:
Тонкие пленки--Свойства магнитные
Тонкие пленки--Свойства оптические

Доп.точки доступа:
Greben'kova, Yu.; Гребенькова, Юлия Эрнестовна; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Stepanova, E.; Chichkov, V. I.; Andreev, N. V.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Национальный исследовательский технологический университет "МИСИС"; Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
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Optical properties of the HoGa3(BO3)4 crystal: experiment and ab initio calculation / S. N. Krylova, A. S. Aleksandrovsky, E. M. Roginskii [et al.] // Ferroelectrics. - 2020. - Vol. 559, Is. 1. - P. 135-140, DOI 10.1080/00150193.2020.1722015. - Cited References: 22. - This work was supported by the Russian Foundation for Basic Research (grant No 18-02-00754) . - ISSN 0015-0193
Кл.слова (ненормированные):
HoGa3(BO3)4 -- ab initio calculation -- absorption spectrum -- band structure
Аннотация: Single crystal of HoGa3(BO3)4 has been grown using solution-melt synthesis. The optical band gap determined from the measured absorption spectrum is due to direct allowed transition and equals to 4.14 eV. The optical properties of this crystal are calculated by the plane-wave pseudo-potential method based on density functional theory. The structure of the crystal has been optimized. The electronic structure of HoGa3(BO3)4 is calculated. The experimental and theoretical fundamental absorption spectra are compared. The calculated bandgap is in good agreement with the experimental data.

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Держатели документа:
Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Ioffe Institute, St. Petersburg, Russian Federation
St. Petersburg State University, St. Petersburg, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudny, Russian Federation

Доп.точки доступа:
Krylova, S. N.; Крылова, Светлана Николаевна; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Roginskii, E. M.; Krylov, A. A.; Gudim, I. A.; Гудим, Ирина Анатольевна; Vtyurin, A. N.; Втюрин, Александр Николаевич
}
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    Effect of composition on the optical and photocatalytic properties of visible light responsive materials Bi26-xMgxO40 / D. S. Shtarev, R. Kevorkyants, M. S. Molokeev, A. V. Shtareva // Inorg. Chem. - 2020. - Vol. 59, Is. 12. - P. 8173-8183, DOI 10.1021/acs.inorgchem.0c00486. - Cited References: 41. - This study was supported by a grant from the Russian Science Foundation (Project No 19-73-10013). The authors acknowledge the help of the Yu. A. Kosygin Institute of Tectonics and Geophysics FEB RAS in conducting the study and offering their research equipment. The authors also thank the Research Center on Nanophotonics, the Center for Physical Methods of Surface Investigation (Dr. Alexandra Koroleva), and the Computing Centre of the Saint-Petersburg State University. R.K. acknowledges financial support from a grant from the Saint-Petersburg State University (Pure ID 39054581) . - ISSN 0020-1669
   Перевод заглавия: Влияние состава на оптические и фотокаталитические свойства новых материалов Bi26-xMgxO40, реагирующих на видимый свет
Аннотация: We report the synthesis and the crystal and electronic structure as well as the optical and photocatalytic properties of novel photoactive materials of the general formula Bi26–xMgxO40. Two compounds with compositions of Bi24.28(3)Mg1.72(3)O40 and Bi24.05(3)Mg1.95(3)O40 are synthesized using the pyrolytic method. According to X-ray diffraction analysis, the materials are monocrystalline species. Their electronic bandgaps determined from Tauc plots are 2.41 eV [Bi24.28(3)Mg1.72(3)O40] and 2.69 eV [Bi24.05(3)Mg1.95(3)O40]. Keeping in mind that optical bandgaps are typically larger than their electronic counterparts, we find that the bismuthate bandgaps match well that of Bi24Mg2O40 (2.26 eV) predicted by density functional theory. Apparently, the synthesized bismuthates are indirect bandgap semiconductors just like Bi24Mg2O40. Both materials demonstrate nearly identical luminescence spectra. Their luminescence emission at 620 nm is most efficiently excited by 365 nm light. The materials’ photocatalytic properties are evaluated in a visible light-induced photocatalytic phenol degradation reaction. Rather low activity of both compounds is detected. However, Bi24.05(3)Mg1.95(3)O40 is ∼2 times more photocatalytically active than Bi24.28(3)Mg1.72(3)O40, which is associated with a higher Bi5+ content in the former.

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Держатели документа:
Yu. A. Kosygin Institute of Tectonics and Geophysics FEB RAS, Khabarovsk, 680000, Russian Federation
Saint-Petersburg State University, Laboratory Photoactive Nanocomposite Materials, St Petersburg, 199034, Russian Federation
Far Eastern State Transport University, Khabarovsk, 680000, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Shtarev, D. S.; Kevorkyants, R.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Shtareva, A. V.
}
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    Vetrov, S. Ya.
    Localized modes in chiral photonic structures / S. Y. Vetrov, I. V. Timofeev, V. F. Shabanov // Phys. Usp. - 2020. - Vol. 63, Is. 1. - P. 33-56, DOI 10.3367/UFNe.2018.11.038490. - Cited References: 251 . - ISSN 1063-7869. - ISSN 1468-4780
Рубрики:
CHOLESTERIC LIQUID-CRYSTAL
   CONTROLLED LIGHT-SCATTERING
   SCULPTURED THIN-FILMS
Кл.слова (ненормированные):
light localization -- photonic crystals -- chirality -- chiral nematic liquid crystal -- Pancharatnam-Berry geometric phase -- avoided crossing of coupled modes -- cholesteric liquid crystal -- optical Tamm states -- nanocomposite -- resonant frequency dispersion -- hybrid modes
Аннотация: We discuss chiral structures in self-organizing, artificial, and biological materials. A review of experimental studies and recent advances in the localization of light in chiral structures is given. The behavior of polarized resonant modes in such structures is examined using the example of a one-dimensional photonic crystal containing liquid crystal materials. The anomalous spectral shifts of transmission peaks are interpreted as the contribution of the geometric phase caused by the twisting of the layers of the liquid crystal. The optical Tamm state localized at the boundary between chiral and nonchiral mirrors in the form of a cholesteric layer and a polarization-preserving anisotropic mirror is analytically and numerically described. Considerable attention is paid to the presentation of the properties of localized optical modes in the cholesteric with a resonant metal-dielectric nanocomposite. New possibilities for controlling the properties of the photonic structure are noted, due to the combination of the dispersion of the resonant medium and the intrinsic dispersion of the cholesteric. Attention is focused on controlled hybrid modes in the cholesteric structure formed by the coupling of localized modes. Possible applications and further ways of developing the concept of chiral photonic structures are deliberated.

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Публикация на русском языке Ветров, Степан Яковлевич. Локализованные моды в хиральных фотонных структурах [Текст] / С. Я. Ветров, И. В. Тимофеев, В. Ф. Шабанов // Успехи физ. наук. - 2020. - Т. 190 № 1. - С. 37-62

Держатели документа:
Russian Acad Sci, Siberian Branch, FRC KSC, Kirensky Inst Phys, Akademgorodok 50,Str 38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Pr Svobodnyi 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Shabanov, V. F.; Шабанов, Василий Филиппович; Ветров, Степан Яковлевич
}
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Core-hole localization and ultra-fast dissociation in SF6 / V. Ekholm, G. S. Chiuzbaian, C. Sathe [et al.] // J. Phys. B. - 2020. - Vol. 53, Is. 18. - Ст. 185101, DOI 10.1088/1361-6455/aba204. - Cited References: 36. - This work was supported by the Swedish Research Council (VR). The calculations were performed on resources provided by the Swedish National Infrastructure for Computing (SNIC). FG acknowledges support within the Russian Science Foundation (Project No. 16-12-10109) . - ISSN 0953-4075. - ISSN 1361-6455

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
X-RAY-EMISSION
   SYMMETRY-BREAKING
   AB-INITIO
   SPECTROSCOPY
   SPECTRA
Кл.слова (ненормированные):
SF6 -- resonant inelastic x-ray scattering -- symmetry selection rules -- ultrafast dynamics -- vibronic couplings
Аннотация: Resonant inelastic x-ray scattering spectra excited at the fluorine K resonances of SF6 have been recorded. While a small but significant propensity for electronically parity-allowed transitions is found, the observation of parity-forbidden electronic transitions is attributed to vibronic coupling that breaks the global inversion symmetry of the electronic wavefunction and localizes the core hole. The dependence of the scattering cross section on the polarization of the incident radiation and the scattering angle is interpreted in terms of local π/σ symmetry around the S–F bond. This symmetry selectivity prevails during the dissociation that occurs during the scattering process.

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Держатели документа:
Lund Univ, MAX IV Lab, Box 118, SE-22100 Lund, Sweden.
Uppsala Univ, Dept Phys & Astron, Box 516, SE-75120 Uppsala, Sweden.
Sorbonne Univ, F-75005 Paris, France.
CNRS, LCPMR, F-75005 Paris, France.
Synchrotron SOLEIL, LOrme Merisiers, BP 48, F-91192 Gif Sur Yvette, France.
Ctr Nacl Pesquisa Energia & Mat CNPEM, BR-10000 Campinas, Brazil.
Royal Inst Technol, Sch Biotechnol, Theoret Chem & Biol, S-10691 Stockholm, Sweden.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Stockholm Univ, AlbaNova Univ Ctr, Dept Phys, SE-10691 Stockholm, Sweden.

Доп.точки доступа:
Ekholm, V.; Chiuzbaian, G. S.; Sathe, C.; Nicolaou, A.; Guarise, M.; Simon, M.; Jaouen, N.; Luning, J.; Hague, C. F.; Gel'mukhanov, F.; Гельмуханов, Фарис Хафизович; Odelius, M.; Bjorneholm, O.; Rubensson, J-E; Swedish Research Council (VR)Swedish Research Council; Russian Science FoundationRussian Science Foundation (RSF) [16-12-10109]
}
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10.

    Ikonnikov, Denis A..
    Tailoring diffraction of light carrying orbital angular momenta / D. A. Ikonnikov, A. M. Vyunishev // Opt. Lett. - 2020. - Vol. 45, Is. 14. - P. 3905-3908, DOI 10.1364/OL.389019. - Cited References: 29. - Russian Science Foundation (19-12-00203). . - ISSN 0146-9592. - ISSN 1539-4794
   Перевод заглавия: Управление дифракцией пучков света с орбитальным угловым моментом

РУБ Optics
Рубрики:
OPTICAL VORTICES
ENTANGLEMENT
TWEEZERS
Аннотация: A unified approach to controlling the diffraction of light carrying orbital angular momenta (OAM) is developed and experimentally verified in this Letter. This approach allows one to specify not only the number of diffraction maxima, their spatial frequencies, and the intensity distribution between them, but also the OAM in each maximum. It is verified that the approach can be used for structuring both single and multiple beams carrying OAMs. Simulations reveal phase singularities in structured beams. In addition, the approach makes it possible to shape the light in regular and irregular two-dimensional arrays with addressing the OAMs at each site. This approach offers new opportunities for singular optics.

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Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Иконников, Денис Андреевич; Russian Science FoundationRussian Science Foundation (RSF) [19-12-00203]
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11.

    Паршин, Александр Михайлович.
    Оптическое пропускание доменной структуры нематика на поверхности полимера в магнитном поле / А. М. Паршин, А. В. Баранник // Жидк. кристаллы и их практич. использ. - 2020. - Т. 20, Вып. 2. - С. 62-68 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2020.2.62. - Библиогр.: 20 . - ISSN 1991-3966
   Перевод заглавия: Optical transmission of the nematic domain structure on the polymer surface in a magnetic field

РУБ Crystallography
Рубрики:
LIGHT-SCATTERING
DEFECTS
Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- доменная структура -- интерференция света -- рассеяние света -- магнитное поле -- nematic liquid crystal -- polycarbonate -- domain structure -- light -- interference -- light scattering -- magnetic field
Аннотация: Исследовано распространение лазерного луча через слой гибридно-упорядоченного нематика с поверхностной линией дисклинации, состоящий из доменов с радиальной конфигурацией нематического директора на пленке поликарбоната. Ориентационная структура в объеме домена трансформируется в планарную одноосную, задаваемую линией дисклинации, либо в гомеотропную под действием магнитного поля. Получена зависимость интенсивности света, прошедшего через слой, от магнитного поля, прикладываемого перпендикулярно поверхности полимера. Оптическое пропускание сопровождалось интерференционными минимумами и максимумами. Представлена модель интерференции света, основанная на двулучепреломлении, учитывающая рассеяние на ориентационно-структурных неоднородностях доменного ансамбля. Из рассмотрения свободной энергии жидкого кристалла и эффектов двулучепреломления выведено аналитическое выражение, устанавливающее зависимость между интенсивностью света и напряженностью магнитного поля, совпадающее с экспериментом.
The propagation of a laser beam through a layer of a hybrid ordered nematic on a polycarbonate film is studied. The nematic has a surface disclination line consisting of domains with a radial configuration of the nematic director. The orientational structure in the domain volume can be transformed into a planar uniaxial structure defined by a disclination line or into a homeotropic one under the influence of a magnetic field. The dependence of the light intensity transmitted through the layer on the magnetic field applied perpendicular to the polymer surface is obtained. Optical transmission was accompanied by interference minima and maxima. Light interference model based on birefringence which takes into account scattering by the orientation-structural inhomogeneities of the domain ensemble is presented. Considering the analysis of the liquid crystal free energy and the birefringence effects, an analytical expression is derived. It establishes the relationship between the light intensity and the magnetic field strength, which coincides with the experiment.

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Институт физики им. Л. В. Киренского, Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения Российской академии наук», Академгородок, д. 50, 660036 Красноярск, Россия
Сибирский федеральный университет, пр. Свободный, 79, 660041 Красноярск, Россия

Доп.точки доступа:
Баранник, Алексей Владимирович; Barannik, A. V.; Parshin, A. M.

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12.

    Halogen substitution in zero-dimensional mixed metal halides toward photoluminescence modulation and enhanced quantum yield / M. Z. Li, Y. W. Li, M. S. Molokeev [et al.] // Adv. Opt. Mater. - 2020. - Vol. 8, Is. 16. - Ст. 2000418, DOI 10.1002/adom.202000418. - Cited References: 34. - M.L., Y.L. contributed equaly to this work. This work was supported by the National Natural Science Foundation of China (51961145101, 51972118, and 51722202), Fundamental Research Funds for the Central Universities (FRFTP-18-002C1), the Guangdong Provincial Science &Technology Project (2018A050506004), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01 x 137). This work was also funded by RFBR according to the research project No. 19-52-80003. The work at Jilin University is supported by the National Natural Science Foundation of China (Grant No. 61722403 and 11674121) and Jilin Province Science and Technology Development Program (Grant No. 20190201016JC). Calculations were performed in part at the high performance computing center of Jilin University. . - ISSN 2195-1071
   Перевод заглавия: Замена галогена в смешанных галогенидах металлов с нулевой размерностью для модуляции фотолюминесценции и увеличения квантового выхода

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
WHITE-LIGHT EMISSION
PEROVSKITES
EXCITONS
Кл.слова (ненормированные):
halogen substitution -- hybrid metal halides -- photoluminescene quantum yield
Аннотация: Zero‐dimensional (0D) organic−inorganic hybrid metal halides haveunprecedented degrees of freedom for structural tunability and photoluminescence modulation. Here, the 0D isomorphic hybrid metal mixed halides (C9NH20)9Pb3Zn2Br19(1−x )Cl19x (x = 0–1) with continuous halogen contents control, exhibiting tunable emission and enhancement of photoluminescence quantum yield (PLQY) are reported. The competitive bromine to chlorine substitution process in (C9NH20)9Pb3Zn2Br19(1−x )Cl19x occurs first in [ZnBr4−x Clx ]2− tetrahedron before the [Pb3Br11−x Clx ]5− trimer. The increasing Cl content in samples from x = 0 to 1 results in an expected blue shift of emission peak from 565 to 516 nm, and meanwhile a strikingly room temperature PL quantum yield increase from 8% to 91%. Combined experimental characterizations and theoretical calculations indicate that the blue shift of interband transition energy is responsible for the emission peak shift. Moreover, with the increasing Cl content, the enhanced electron−phonon interaction and the weakened thermal‐assisted nonradiative recombination result in more efficient radiative transition channels and ultimately enhanced PLQY. The impact of halogen substitution on electronic structures and optical properties in 0D hybrid metal halides is emphasized in this work as a new strategy to promote the future development of new luminescent materials.

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Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing Municipal Key Lab New Energy Mat & Techno, Beijing 100083, Peoples R China.
Jilin Univ, Coll Mat Sci & Engn, Key Lab Automobile Mat MOE, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
South China Univ Technol, Inst Opt Commun Mat, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China.

Доп.точки доступа:
Li, Mingze; Li, Yawen; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhao, Jing; Na, Guangren; Zhang, Lijun; Xia, Zhiguo
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13.

Two-dimensional Talbot effect of the optical vortices and their spatial evolution / D. A. Ikonnikov, S. A. Myslivets, M. N. Volochaev [et al.] // Sci. Rep. - 2020. - Vol. 10, Is. 1. - Ст. 20315, DOI 10.1038/s41598-020-77418-y. - Cited References: 42. - This work was supported by the Russian Science Foundation (Grant # 19-12-00203). The authors acknowledge the Krasnoyarsk Territorial Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, for fabricating the 2D grating sample and A.I. Zaitsev for optical microscopy of the sample . - ISSN 2045-2322
Аннотация: We report on the experimental and theoretical study of the near-field diffraction of optical vortices (OVs) at a two-dimensional diffraction grating. The Talbot effect for the optical vortices in the visible range is experimentally observed and the respective Talbot carpets for the optical vortices are experimentally obtained for the first time. It is shown that the spatial configuration of the light field behind the grating represents a complex three-dimensional lattice of beamlet-like optical vortices. A unit cell of the OV lattice is reconstructed using the experimental data and the spatial evolution of the beamlet intensity and phase singularities of the optical vortices is demonstrated. In addition, the self-healing effect for the optical vortices, which consists in flattening of the central dip in the annular intensity distribution, i.e., restoring the image of the object plane predicted earlier is observed. The calculated results agree well with the experimental ones. The results obtained can be used to create and optimize the 3D OV lattices for a wide range of application areas.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Ikonnikov, D. A.; Иконников, Денис Андреевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович
}
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14.

    Luminescence of monoclinic Y2O3:Eu nanophosphor produced via laser vaporization / A. I. Kostyukov, V. N. Snytnikov, V. N. Snytnikov [et al.] // Opt. Mater. - 2020. - Vol. 104. - Ст. 109843, DOI 10.1016/j.optmat.2020.109843. - Cited References: 19. - This work is financially supported by the Russian Foundation for Basic Research № 19-32-60027 . - ISSN 0925-3467
   Перевод заглавия: Люминесценция моноклинного Y2O3:Eu нанолюминофора, полученного испарением лазером
Кл.слова (ненормированные):
Photoluminescence of Eu3+ -- Monoclinic Y2O3:Eu nanophosphor -- Laser vaporization
Аннотация: Europium doped Y2O3spherical nanoparticles with the diameter ~10 nmobtained via cw laser vaporization are shown to crystallize in monoclinic symmetry class (C2/m space group). The size of nanoparticles established via HRTEM coincides with coherent scattering region established by XRD. Luminescence spectrum in the vicinity of ultranarrow transition demonstrates three peaks consistent with three inequivalent positions of Eu3+ ion in monoclinic Y2O3 lattice. Hypersensitive transition dominates in the spectrum, admitting the lack of inversion symmetry at Cs sites occupied by Eu3+. The spectrum of hypersensitive transition is expanded to the red part of spectrum due intense transitions terminating at higher-lying components of crystal-field-split 7F2 energy level. Obtaining chromaticity coordinates (0.669, 0.331)and absolute quantum yield (~21%) is possible using red phosphor based on monoclinic Y2O3:Eu3+.

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Держатели документа:
Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russian Federation
Boreskov Institute of CatalysisSB RAS, Lavrentieva Ave. 5, Novosibirsk, 630090, Russian Federation
Nikolaev Institute of Inorganic Chemistry SB RAS, Akad. Lavrentiev Ave. 3, Novosibirsk, 630090, Russian Federation
Kirensky Institute of Physics Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russian Federation
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Kostyukov, A. I.; Snytnikov, V. N.; Ishchenko, A. V.; Rakhmanova, M. I.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
}
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15.

Bulgakov, E. N.
Giant resonant enhancement of optical binding of dielectric disks / E. N. Bulgakov, K. N. Pichugin, A. F. Sadreev // J. Opt. Soc. Am. B. - 2020. - Vol. 37, Is. 11. - P. 3335-3340, DOI 10.1364/JOSAB.402659. - Cited References: 30. - Russian Science Support Foundation (19-02-00055) . - ISSN 0740-3224
Кл.слова (ненормированные):
Aspect ratio -- Bessel functions -- Laser beams
Аннотация: Two-fold variation over the aspect ratio of each disk and distance between disks gives rise to numerous events of avoided crossing of resonances of individual disks. For these events, the hybridized anti-bonding resonant modes can acquire a morphology close to the Mie resonant mode with the high orbital momentum of an equivalent sphere. The �� factor of such resonance can exceed the �� factor of an isolated disk by two orders of magnitude. We show that dual incoherent counterpropagating coaxial Bessel beams with power 1mW/µm2 with frequency resonant to such anti-bonding Mie-like modes result in unprecedented optical binding forces up to tens of nano-Newtons for silicon micrometer-sized disks. We show also that the magnitude and sign of optical forces depend strongly on the longitudinal wave vector of the Bessel beams.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC, SB RAS, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Pichugin, K. N.; Пичугин, Константин Николаевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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16.

Gardymova, Anna P..
Optical textures and orientational structures in cholesteric droplets with conical boundary conditions / A. P. Gardymova, M. N. Krakhalev, V. Y. Zyryanov // Molecules. - 2020. - Vol. 25, Is. 7. - Ст. 1740, DOI 10.3390/molecules25071740. - Cited References: 53. - The authors are grateful for the financial support by the Russian Science Foundation (grant No. 18-72-10036). . - ISSN 1420-3049

РУБ Biochemistry & Molecular Biology + Chemistry, Multidisciplinary
Рубрики:
DISPERSED LIQUID-CRYSTALS
CHIRAL NEMATIC DROPLETS
IONIC MODIFICATION
Кл.слова (ненормированные):
cholesteric liquid crystal -- droplet -- optical texture -- orientational structure -- conical surface anchoring -- topological defect
Аннотация: Cholesteric droplets dispersed in polymer with conical boundary conditions have been studied. The director configurations are identified by the polarising microscopy technique. The axisymmetric twisted axial-bipolar configuration with the surface circular defect at the droplet’s equator is formed at the relative chirality parameter N0≤2.9 . The intermediate director configuration with the deformed circular defect is realised at 2.9
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Держатели документа:
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science FoundationRussian Science Foundation (RSF) [18-72-10036]
}
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17.

Catalyzed M–C coupling reactions in the synthesis of σ-(pyridylethynyl)dicarbonylcyclopentadienyliron complexes / V. V. Verpekin, O. V. Semeikin, A. D. Vasiliev [et al.] // RSC Adv. - 2020. - Vol. 10, Is. 29. - P. 17014-17025, DOI 10.1039/d0ra02333g. - Cited References: 86. - This research was funded by a grant from the Russian Science Foundation (project No. 18-73-00150). . - ISSN 2046-2069

РУБ Chemistry, Multidisciplinary
Рубрики:
NONLINEAR-OPTICAL PROPERTIES
METAL ALKYNYL COMPLEXES
CARBON BOND FORMATION
Аннотация: The reactions between terminal ethynylpyridines, (trimethylsilyl)ethynylpyridines and cyclopentadienyliron dicarbonyl iodide were studied under Pd/Cu-catalyzed conditions to develop a synthetic approach to the σ-alkynyl iron complexes Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl). Depending on the catalyst and reagents used, the yields of the desired σ-pyridylethynyl complexes varied from 40 to 95%. In some cases the reactions with ortho-ethynylpyridine gave as byproduct the unexpected binuclear FePd μ-pyridylvinylidene complex [Cp(CO)Fe{μ2-η1(Cα):η1(Cα)-κ1(N)-Cα=Cβ(H)(o-C5H4N)}(μ-CO)PdI]. The conditions, catalysts, and reagents that provide the highest yields of the desired σ-pyridylethynyl iron compounds were determined. The methods developed allowed the synthesis of the corresponding σ-4-benzothiadiazolylethynyl complex Cp(CO)2Fe–C≡C–(4-C6H3N2S) as well. Eventually, synthetic approaches to σ-alkynyl iron complexes of the type Cp(CO)2Fe–C≡C–R (R = ortho-, meta-, para-pyridyl, 4-benzothiadiazol-2,1,3-yl) based on the Pd/Cu-catalyzed cross-coupling reactions were elaborated.

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Russian Acad Sci, Krasnoyarsk Res Ctr, Siberian Branch, Inst Chem & Chem Technol, Akademgorodok 50-24, Krasnoyarsk 660036, Russia.
Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Ul Vavilova 28, Moscow 119991, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Res Ctr, Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sobodny Prospect 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Verpekin, Victor V.; Semeikin, Oleg, V; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Kondrasenko, Alexander A.; Belousov, Yu. A.; Ustynyuk, Nikolai A.; Russian Science FoundationRussian Science Foundation (RSF) [18-73-00150]
}
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18.

Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.] // Materials. - 2020. - Vol. 13, Is. 15. - Ст. 3255, DOI 10.3390/ma13153255. - Cited References: 44. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006 . - ISSN 1996-1944

РУБ Materials Science, Multidisciplinary
Рубрики:
PHASE
POLARIZATION
MODES
Кл.слова (ненормированные):
localization of light -- photonic crystals -- chirality -- dye-doped cholesteric liquid crystal -- optical Tamm states -- resonant frequency dispersion
Аннотация: The resonant splitting of optical Tamm state numerically is demonstrated. The Tamm state is localized at the interface between a resonant chiral medium and a polarization-preserving anisotropic mirror. The chiral medium is considered as a cholesteric liquid crystal doped with resonant dye molecules. The article shows that the splitting occurs when dye resonance frequency coincides with the frequency of the Tamm state. In this case the reflectance, transmittance, and absorptance spectra show two distinct Tamm modes. For both modes, the field localization is at the interface between the media. The external field control of configurable optical and structural parameters paves the way for use in tunable chiral microlaser.

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Публикация в сборнике Soft photonic crystals and metamaterials [Текст] / ed., pref.: I. V. Timofeev, W. Lee, 2022. - VII с. ; 127 с. (Введено оглавление)

Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Avdeeva, A. Yu.; Авдеева, Анастасия Юрьевна; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52006]
}
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19.

    Bukhanov, E. R.
    A study of wheat wax optical properties / E. R. Bukhanov, Y. L. Gurevich, K. A. Shabanova // Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall) : IEEE, 2019. - P. 2890-2897. - (Progress in Electromagnetics Research Symposium), DOI 10.1109/PIERS-Fall48861.2019.9021781. - Cited References: 36
   Перевод заглавия: Изучение оптических свойств воска пшеницы

РУБ Engineering, Electrical & Electronic + Physics, Applied
Рубрики:
DIMENSIONAL PHOTONIC CRYSTALS
BLUE-GREEN FLUORESCENCE
Аннотация: Epicuticular waxes are a multifunctional interface between a plant and the environment. In this paper wheat leaves wax has been studied. Wax isolation was carried out using the method of gradual freezing in water followed by slow thawing. The morphology of the samples obtained was observed with a Hitachi SU3500 electron microscope. The structure period is determined by the nanotubes diameter which equals 150-200 nm. Random orientation of their long axes in the layer allows using a one-dimensional model to calculate the transmission spectrum of a photonic crystal with the help of the transfer matrix method. While making the calculations a defect that may be caused by possible interlayer heterogeneity also must be taken into account. Numerical modeling made it possible to identify the stop zone and the defective mode. Intense fluorescence appears in the optical area of the wax layer under ultraviolet radiation, thus increasing the efficiency of photosynthesis.

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Держатели документа:
Kirensky Inst Phys Fed Res Ctr KSC SB RAS, Krasnoyarsk, Russia.
Fed Res Ctr KSC SB RAS, Krasnoyarsk, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk, Russia.

Доп.точки доступа:
Gurevich, Y. L.; Shabanova, K. A.; Буханов, Евгений Романович; Photonics and Electromagnetics Research Symposium - Fall(2019 ; Dec 17-20 ; Xiamen, China)
}
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20.

Maksimov, D. N.
Optical bistability with bound states in the continuum in dielectric gratings / D. N. Maksimov, A. A. Bogdanov, E. N. Bulgakov // Phys. Rev. A. - 2020. - Vol. 102, Is. 3. - Ст. 033511, DOI 10.1103/PhysRevA.102.033511. - Cited References: 53. - This work was financially supported by the Government of the Russian Federation through the ITMO Fellowship and Professorship Program. A.A.B. also acknowledges support by the Ministry of Science and Higher Education of Russian Federation, goszadanie No. 2019-1246 and RFBR (18-32-20205) . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
COUPLED-MODE THEORY
   WAVE-GUIDE
   TRANSITION
   RESONANCE
   ARRAYS
Аннотация: We consider light scattering by dielectric gratings supporting optical bound states in the continuum. Due to the presence of instantaneous Kerr nonlinearity critical field enhancement in the spectral vicinity of the bound state triggers the effect of optical bistability. The onset of bistability is explained theoretically in the framework of the temporal coupled-mode theory. As the central result we cast the problem in the form of a single field-driven nonlinear oscillator. The theoretical results are verified in comparison with numerical simulations.

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Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
ITMO Univ, Dept Phys & Engn, St Petersburg 191002, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.

Доп.точки доступа:
Bogdanov, A. A.; Bulgakov, E. N.; Булгаков, Евгений Николаевич; Максимов, Дмитрий Николаевич; Government of the Russian Federation through the ITMO Fellowship; Ministry of Science and Higher Education of Russian Federation, goszadanie [2019-1246]; RFBRRussian Foundation for Basic Research (RFBR) [18-32-20205]
}
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