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    Amino-functionalized Fe3O4@SiO2 core-shell magnetic nanoparticles for dye adsorption / C.-R. Lin, O. S. Ivanova, D. A. Petrov [et al.] // Nanomaterials. - 2021. - Vol. 11, Is. 9. - Ст. 2371, DOI 10.3390/nano11092371. - Cited References: 35. - The authors are thankful for the financial support the Russian Foundation for Basic Research, Grant № 19-52-52002, Ministry of Science and Technology of Taiwan, Grants MOST № 108-2923-M-153-001-MY3 and № 109-2112-M-153-003-, the Russian Foundation for Basic Research with Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, the research project number 19-42-240005: “Features of the electronic structure, magnetic properties and optical excitations in nanocrystals of the multifunctional magnetic chalcogenides Fe3S4 and FeSe”. We thank also the SFU Joint Scientific Center supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the Transmission Electron Microscopy studies were carried out . - ISSN 2079-4991
   Перевод заглавия: Амино-функциональные магнитные наночастицы ядро-оболочка Fe3O4@SiO2 для адсорбции красителей
Кл.слова (ненормированные):
Fe3O4@SiO2 -- core-shell nanoparticles -- magnetic properties -- water pollutions -- fluorescence -- adsorption
Аннотация: Fe3O4@SiO2 core-shell nanoparticles (NPs) were synthesized with the co-precipitation method and functionalized with NH2 amino-groups. The nanoparticles were characterized by X-ray, FT-IR spectroscopy, transmission electron microscopy, selected area electron diffraction, and vibrating sample magnetometry. The magnetic core of all the nanoparticles was shown to be nanocrystalline with the crystal parameters corresponding only to the Fe3O4 phase covered with a homogeneous amorphous silica (SiO2) shell of about 6 nm in thickness. The FT-IR spectra confirmed the appearance of chemical bonds at amino functionalization. The magnetic measurements revealed unusually high saturation magnetization of the initial Fe3O4 nanoparticles, which was presumably associated with the deviations in the Fe ion distribution between the tetrahedral and octahedral positions in the nanocrystals as compared to the bulk stoichiometric magnetite. The fluorescent spectrum of eosin Y-doped NPs dispersed in water solution was obtained and a red shift and line broadening (in comparison with the dye molecules being free in water) were revealed and explained. Most attention was paid to the adsorption properties of the nanoparticles with respect to three dyes: methylene blue, Congo red, and eosin Y. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for all three dyes. The equilibrium data were more compatible with the Langmuir isotherm and the maximum adsorption capacity was reached for Congo red.

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Держатели документа:
Department of Applied Physics, National Pingtung University, Pingtung City, 90003, Taiwan
Kirensky Institute of Physics, FRC KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Lin, C. -R.; Ivanova, O. S.; Иванова, Оксана Станиславовна; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Chen, Y. -Z.; Gerasimova, M. A.; Zharkov, S. M.; Жарков, Сергей Михайлович; Tseng, Y. -T.; Shestakov, N. P.; Шестаков, Николай Петрович; Edelman, I. S.; Эдельман, Ирина Самсоновна
}
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Averyanov, E. M.
Spectral position control of dye absorption band maximum in an orienting matrix / E. M. Averyanov, V. A. Gunyakov // Molecular Engineering. - 1992. - Vol. 1, N. 4. - P. 311-316
Аннотация: The continuous control of the maximum position να of the dye absorption band (the zero of the derivative dD α(ν)/dν of the cell's optical density D α(ν)) in a nematic matrix is demonstrated experimentally, as a result of changing the angle α between the optical axis of a planar-oriented sample and the plane of polarization of absorbed light incident normal to the optical axis. The theory proposed describes quantitatively the experimental dependence ν(α). The rotation of the polarizer with given frequency ω results in the spectral position modulation of the solute band maximum ν(ω) within ν(α=0°)−ν(90°)=700 cm−1.

Держатели документа:
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Аверьянов, Евгений МихайловичAver'yanov
}
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    Carbon double coated Fe3O4@C@C nanoparticles: Morphology features, magnetic properties, dye adsorption / C. R. Lin, O. S. Ivanova, I. S. Edelman [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 3. - Ст. 376, DOI 10.3390/nano12030376. - Cited References: 44. - The work was supported financially by the Russian Foundation for Basic Research, Grant No. 19-52-52002 and Ministry of Science and Technology of Taiwan, Grants MOST No. 108-2923-M-153-001-MY3 and No. 109-2112-M-153-003-. The support was obtained also from the Joint Scientific Center of the Siberian Federal University supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the Transmission Electron Microscopy studies were carried out . - ISSN 2079-4991
   Перевод заглавия: Наночастицы Fe3O4@C@C с двойным углеродным покрытием: Морфологические особенности, магнитные свойства, адсорбция красителей

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
SOLID-PHASE EXTRACTION
FE3O4 NANOPARTICLES
PROFILE REFINEMENT
Кл.слова (ненормированные):
core-shell Fe3O4@C nanoparticles -- core-shell Fe3O4@C@C nanoparticles -- magnetic properties -- dyes adsorption
Аннотация: This work is devoted to the study of magnetic Fe3O4 nanoparticles doubly coated with carbon. First, Fe3O4@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20–30 nm in size were processed in a solution of glucose at 200 °C during 12 h, which led to an unexpected phenomenon – the nanoparticles self-assembled into large conglomerates of a regular shape of about 300 nm in size. The morphology and features of the magnetic properties of the obtained hybrid nanoparticles were characterized by transmission electron microscopy, differential thermo-gravimetric analysis, vibrating sample magnetometer, magnetic circular dichroism and Mössbauer spectroscopy. It was shown that the magnetic core of Fe3O4@C nanoparticles was nano-crystalline, corresponding to the Fe3O4 phase. The Fe3O4@C@C nanoparticles presumably contain Fe3O4 phase (80%) with admixture of maghemite (20%), the thickness of the carbon shell in the first case was of about 2–4 nm. The formation of very large nanoparticle conglomerates with a linear size up to 300 nm and of the same regular shape is a remarkable peculiarity of the Fe3O4@C@C nanoparticles. Adsorption of organic dyes from water by the studied nanoparticles was also studied. The best candidates for the removal of dyes were Fe3O4@C@C nanoparticles. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for cationic dye methylene blue (MB) and anionic dye Congo red (CR). The equilibrium data were more consistent with the Langmuir isotherm and were perfectly described by the Langmuir–Freundlich model.

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Держатели документа:
Natl Pingtung Univ, Dept Appl Phys, Pingtung City 90003, Taiwan.
RAS, FRC KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
RAS, FRC KSC SB, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lin, Chun-Rong; Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Zharkov, S. M.; Жарков, Сергей Михайлович; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Solovyov, Leonid A.; Chen, Ying-Zhen; Tseng, Yaw-Teng; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52002]; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan [108-2923-M-153-001-MY3, 109-2112-M-153-003]; Joint Scientific Center of the Siberian Federal University [FSRZ-2020-0011]; Ministry of Science and Higher Education of the Russian Federation
}
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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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Core–shell Fe3O4@C nanoparticles for the organic dye adsorption and targeted magneto-mechanical destruction of Ehrlich ascites carcinoma cells / O. S. Ivanova, I. S. Edelman, Ch.-R. Lin [et al.] // Materials. - 2023. - Vol. 16, Is. 1. - Ст. 23, DOI 10.3390/ma16010023. - Cited References: 65. - This research was funded partly by the Ministry of Science and Higher Education of the Russian Federation, project FWES-2021-0035. C.-R.L., Y.-Z.C. and A.A.S. thank the National Science and Technology Council of Taiwan for the financial support, Grants NSTC № 108-2923-M-153-001-MY3 and № 110-2112-M-153-005-. Magnetic investigations were carried out in the Center for Collective Use of the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS” . - ISSN 1996-1944
Кл.слова (ненормированные):
magnetite nanoparticles -- adsorption -- organic dyes -- aptamers -- magnetically induced cell destruction
Аннотация: The morphology, structure, and magnetic properties of Fe3O4 and Fe3O4@C nanoparticles, as well their effectiveness for organic dye adsorption and targeted destruction of carcinoma cells, were studied. The nanoparticles exhibited a high magnetic saturation value (79.4 and 63.8 emu/g, correspondingly) to facilitate magnetic separation. It has been shown that surface properties play a key role in the adsorption process. Both types of organic dyes—cationic (Rhodomine C) and anionic (Congo Red and Eosine)—were well adsorbed by the Fe3O4 nanoparticles’ surface, and the adsorption process was described by the polymolecular adsorption model with a maximum adsorption capacity of 58, 22, and 14 mg/g for Congo Red, Eosine, and Rhodomine C, correspondingly. In this case, the kinetic data were described well by the pseudo-first-order model. Carbon-coated particles selectively adsorbed only cationic dyes, and the adsorption process for Methylene Blue was described by the Freundlich model, with a maximum adsorption capacity of 14 mg/g. For the case of Rhodomine C, the adsorption isotherm has a polymolecular character with a maximum adsorption capacity of 34 mg/g. To realize the targeted destruction of the carcinoma cells, the Fe3O4@C nanoparticles were functionalized with aptamers, and an experiment on the Ehrlich ascetic carcinoma cells’ destruction was carried out successively using a low-frequency alternating magnetic field. The number of cells destroyed as a result of their interaction with Fe3O4@C nanoparticles in an alternating magnetic field was 27%, compared with the number of naturally dead control cells of 6%.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russia
Institute of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk 660041, Russia
Department of Applied Physics, National Pingtung University, Pingtung City 90003, Taiwan
Laboratory of Biomolecular and Medical Technologies, Krasnoyarsk State Medical University Named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk 660022, Russia
Laboratory for Digital Controlled Drugs and Theranostics, Federal Research Center KSC Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Lin, Chun-Rong; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Lukyanenko, Kirill A.; Sukhachev, A. L.; Сухачев, Александр Леонидович; Shestakov, N. P.; Шестаков, Николай Петрович; Chen, Ying-Zhen; Spivakov, Aleksandr A.
}
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    Electrically tunable thermoresponsive optic switch for smart window application based on dye-doped cholesteric liquid crystal / Y. -C. Chang, S. -H. Yang, V. Y. Zyryanov, W. Lee // J. Mol. Liq. - 2023. - Vol. 388. - Ст. 122752, DOI 10.1016/j.molliq.2023.122752. - Cited References: 24. - This work was financially supported by National Science and Technology Council, Taiwan (NSTC), under Grant Nos. 110-2112-M-A49-023 and 111-2112-M-A49-033 . - ISSN 0167-7322. - ISSN 1873-3166
   Перевод заглавия: Электрически настраиваемый термочувствительный оптический переключатель для применения в «умных окнах» на основе холестерического жидкого кристалла, легированного красителем
Кл.слова (ненормированные):
Black dye -- Liquid-crystal devices -- Texture switching -- Smart window -- Cholesteric liquid crystal -- Optical switch
Аннотация: We demonstrate a cholesteric liquid crystal (CLC) smart window that functions as a reversible thermo-optic switch between a transparent state at a low temperature and a low-transmission state at a higher temperature. This smart window is based on the addition of a thermoresponsive handedness-reversible chiral dopant in a mixture of a typical chiral dopant, a dichroic dye and nematic liquid crystal, yielding a thermosensitized CLC. In such a homeotropically anchored dye-doped CLC, the thickness-to-pitch ratio increases as the temperature rises, causing the device to switch from the homeotropic texture to the fingerprint texture. The absorption characteristic of the dichroic dye enables the homeotropic and fingerprint configurations in the dye-doped CLC to create two distinct transmission levels—the transparent and opaque optically stable states, respectively. Such a switching mechanism entails no additional electric power and, thus, is energy-saving. Moreover, the switching temperature at which the texture transition takes place can be actively increased by increasing voltage for the smart window. This allows the CLC device to be perfectly adaptable to the need of a user and, in turn, applicable to a wider variety of environments.

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Держатели документа:
Institute of Lighting and Energy Photonics, National Yang Ming Chiao Tung University, Guiren Dist, Tainan, 711010, Taiwan
Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Scientific Center, ” Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Imaging and Biomedical Photonics, College of Photonics, National Yang Ming Chiao Tung University, Guiren Dist, Tainan, 711010, Taiwan

Доп.точки доступа:
Chang, Y.-C.; Yang, S.-H.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, W.
}
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EVERYANOV, E. M.
REARRANGEMENT AND MODULATION OF SPECTRAL POSITION OF DYE ABSORPTION-BAND IN ORIENTING MATRIX / E. M. EVERYANOV, V. A. GUNYAKOV // Pisma Zhurnal Tek. Fiz. - 1990. - Vol. 16, Is. 18. - P. 46-50. - Cited References: 4 . - ISSN 0320-0116

РУБ Physics, Applied

WOS
Доп.точки доступа:
GUNYAKOV, V. A.
}
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    Luminescent studies of flexible [DUT-8 (Zn)] metal-organic frameworks / N. V. Slyusarenko, A. S. Krylov, M. V. Timofeeva [et al.] // Proc. SPIE. - 2023. - Vol. 12920: XVI International Conference on Pulsed Lasers and Laser Applications (10-15 September 2023, Tomsk, Russian Federation). - Ст. 1292014, DOI 10.1117/12.3005774. - Cited References: 10. - The reported study was funded by RFBR and DFG, project 21-52-12018
   Перевод заглавия: Изучение люминесценции гибкого DUT-8 (Zn) металлоорганического каркасного соединения
Кл.слова (ненормированные):
Förster resonance energy transfer -- FRET -- DUT-8 (Zn) -- metal-organic frameworks -- dye -- energy transfer -- efficiency -- steady-state luminescence -- time-resolved luminescence
Аннотация: An approach to the study of the porous structure of metal-organic frameworks (MOF) using guest luminescent molecules with specially selected spectral characteristics as acceptors of electronic excitation energy was suggested. If such molecules are adsorbed in MOF pores with sizes comparable to the Förster radius, Förster resonance energy transfer (FRET) from photoexcited linkers occurs. In this case quenching of luminescence of the linker can serve as analytical signals indicating open pore structure of the MOF. The developed approach was demonstrated by the example of DUT-8(Zn) MOF and Coumarin 1 as guest molecules by time-resolved luminescence methods.

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Держатели документа:
Siberian Federal University, Svobodny Prospect 79, 660041, Krasnoyarsk, Russia
Kirensky Institute of Physics FRC KSC SB RAS, Academgorodok 50/38, 660036, Krasnoyarsk, Russia
ITMO University, School of Physics and Engineering, Kronverksky Prospekt 49, bldg. A, 197101, St. Petersburg, Russia

Доп.точки доступа:
Slyusarenko, N. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Timofeeva, M. V.; Shipilovskikh, S. A.; Slyusareva, E. A.; International Conference on Pulsed Lasers and Laser Applications(16 ; 2023 : 10-15 Sept. ; Tomsk, Russian Federation)
}
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Nonlinear optical frequency-mixing in DYE vapors / V. F. Lukinykh [et al.] // APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY. - 1985. - Vol. 38, Is. 2. - P. 143-146, DOI 10.1007/BF00697454. - Cited References: 18 . - ISSN 0721-7269

РУБ Physics, Applied

Кл.слова (ненормированные):
42.65 -- 42.80 -- DYES AND DYEING -- LASERS, SOLID STATE - Applications -- DYE VAPORS -- NONLINEAR OPTICAL FREQUENCY-MIXING -- LIGHT

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Держатели документа:
L. V. Kirensky Institute of Physics, USSR Academy of Sciences, Siberian Branch and Krasnoyarsk University, Krasnoyarsk, SU-660036, Russia

Доп.точки доступа:
Lukinykh, V. F.; Myslivets, S. A.; Мысливец, Сергей Александрович; Popov, A. K.; Попов, Александр Кузьмич; Slabko, V. V.; Слабко, Виталий Васильевич
}
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10.

    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
Свободных экз. нет}
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11.

Photo-orientation of nematic liquid crystal without preliminary cell surface treatment / S. A. Shvetsov [et al.] // Opt. Mater. Express. - 2019. - Vol. 9, Is. 6. - P. 2595-2600, DOI 10.1364/OME.9.002595. - Cited References: 28. - Russian Science Foundation (RSF) (18-72-00242). . - ISSN 2159-3930

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
HOMEOTROPIC ALIGNMENT
   INTERFACE
   DYE
   PHOTOALIGNMENT
   NONLINEARITY
Аннотация: We propose a simple and effective method of liquid crystal photoalignment that does not require any preliminary treatment of the cell substrates. To this aim, a small amount (0.1 wt %) of azobenzene carboxylic acid is added into the nematic liquid crystal. After filling the liquid crystal cell, a part of the dopant molecules is spontaneously adsorbed and attached to the glass surface by hydrogen bonds. This allows one to switch the boundary conditions of liquid crystal between homeotropic and planar due to the reversible trans-cis photoizomerization. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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Держатели документа:
Lomonosov Moscow State Univ, Moscow 119991, Russia.
Lebedev Phys Inst, Moscow 119991, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Kirensky Inst Phys,Fed Res Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Shvetsov, S. A.; Emelyanenko, Alexander, V; Bugakov, M. A.; Boiko, N. I.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science Foundation (RSF) [18-72-00242]
}
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12.

Polymer dispersed cholesteric liquid crystals with a toroidal director configuration under an electric field / A. P. Gardymova, M. N. Krakhalev, V. Ya. Zyryanov [et al.] // Polymers. - 2021. - Vol. 13, Is. 5. - Ст. 732. - P. 1-11, DOI 10.3390/polym13050732. - Cited References: 49. - This research was funded by Russian Science Foundation, Grant No. 20-72-10038 . - ISSN 2073-4360
Кл.слова (ненормированные):
cholesteric droplet -- orientational structure -- electric field -- polymer dispersted liquid crystal -- dichroic dye
Аннотация: The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

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Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russian Federation

Доп.точки доступа:
Gardymova, A. P.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Gruzdenko, A. A.; Alekseev, A. A.; Rudyak, V. Yu.
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13.

    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.
Свободных экз. нет}
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14.

    Хиральные оптические таммовские состояния на границе анизотропного зеркала и холестерика с красителем / А. Ю. Авдеева, С. Я. Ветров, М. В. Пятнов [и др.] // IX Международная конференция по фотонике и информационной оптике : сборник научных трудов. - 2020. - С. 91-92. - Библиогр.: 3. - Исследование выполнено при финансовой поддержке РФФИ, Правительства Красноярского края и ККФН в рамках научного проекта № 19 24 240004 . - ISBN 978-5-7262-2648-4
   Перевод заглавия: Chiral optical ta mm states at the interface between an anisotropic mirror and a cholesteric with dye
Аннотация: Изучен эффект расщепления хирального оптического таммовского состояния ( локализованного на границе сохраняющего поляризацию анизотропного зеркала (СПАЗ) и холестерического жидкого кристалла (ХЖК) с красителем. Показаны условия возникновения высокодобротных резонансов, проявляемых в спектре отражения в виде провалов, которые м огут быть использованы при создании узкополосных фильтров.

Материалы конференции,
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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Авдеева, Анастасия Юрьевна; Avdeeva, A. Yu.; Ветров, Степан Яковлевич; Vetrov, S. Ya.; Пятнов, Максим Владимирович; Pyatnov, M. V.; Рудакова, Наталья Викторовна; Rudakova, N. V.; Тимофеев, Иван Владимирович; Timofeev, I. V.; Международная конференция по фотонике и информационной оптике(9 ; 2020 ; янв. ; 29-31 ; Москва); Российская академия наук; Национальный исследовательский ядерный университет "МИФИ"; Государственная корпорация по атомной энергии "РОСАТОМ"
}
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