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Electrically controlled local Frédericksz transition in a layer of a nematic liquid crystal / V. S. Sutormin [et al.] // JETP Letters. - 2012. - Vol. 96, Is. 8. - P. 511-516, DOI 10.1134/S0021364012200131. - Cited References: 18. - This work was supported by the Russian Foundation for Basic Research (project nos. 12-03-00816, 12-02-31613, and 12-03-31144); by the Presidium of the Russian Academy of Sciences (project nos. 24.29 and 24.32); by the Siberian Branch, Russian Academy of Sciences (project nos. 30 and 101); and by the Ministry of Education and Science of the Russian Federation (state contract no. 14.V37.21.0730, federal program "Human Capital for Science and Education in Innovative Russia"). . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
ANCHORING TRANSITIONS
   INTERFACE
   ORIENTATION
   SURFACES
Аннотация: A local Frédericksz transition caused by electrically controlled surface anchoring in a nematic liquid crystal has been implemented owing to the displacement of surface-active ions. In the initial case, the nematic is homeotropically aligned by monomolecular layers of cetyltrimethylammonium bromide cations adsorbed on the surface of substrates. One of the substrates in a static electric field becomes free of a cation layer and specifies planar boundary conditions; as a result, a homeoplanar orientation structure is formed. The features of the dynamics of the optical response of the cell under study that are characteristic of the effect under consideration are discussed.

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Публикация на русском языке Электроуправляемый локальный переход Фредерикса в слое нематического жидкого кристалла [Текст] / В. С. Сутормин [и др.] // Письма в Журн. эксперим. и теор. физ. - 2012. - Т. 96 Вып. 7-8. - С. 562-567

Держатели документа:
[Sutormin, V. S.
Krakhalev, M. N.
Prishchepa, O. O.
Zyryanov, V. Ya.] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
[Zyryanov, V. Ya.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Крахалев, Михаил Николаевич; Krakhalev, M. N.; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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Voltage-induced defect mode coupling in a one-dimensional photonic crystal with a twisted-nematic defect layer / I. V. Timofeev [et al.] // Phys. Rev. E. - 2012. - Vol. 85, Is. 1. - Ст. 11705, DOI 10.1103/PhysRevE.85.011705. - Cited References: 39. - This work was supported in part by DSP Grant No. 2.1.1/3455; RAS Grants No. 3.9.1 and No. 21.1, SB RAS Grants No. 5 and No. 144, and by the National Science Council of Taiwan under Grant No. NSC 98-2923-M-033-001-MY3. . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
LIQUID-CRYSTAL
   REFLECTION SPECTRUM
   OPTICAL-PROPERTIES
   ANISOTROPIC MEDIA
   ELECTRIC-FIELD
   EIGENVALUES
   ORIENTATION
Аннотация: Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal. Their frequency shift and interference under applied voltage are studied both experimentally and theoretically. We deal with the case where the defect layer thickness is much larger than the wavelength (i.e., the Mauguin condition). It is shown theoretically that the defect modes could have a complex structure with elliptic polarization. Two series of polarized modes are coupled with each other and exhibit an avoided crossing phenomenon in the case of opposite parity.

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Держатели документа:
[Timofeev, Ivan V.
Gunyakov, V. A.
Myslivets, Sergey A.
Arkhipkin, V. G.
Zyryanov, Victor Ya] Russian Acad Sci, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Timofeev, Ivan V.
Gunyakov, Vladimir A.
Arkhipkin, V/ G.
Vetrov, Stepan Ya] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Lin, Yu-Ting] Chung Yuan Christian Univ, Master Program Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Zyryanov, Victor Ya] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Lin, Y. T.; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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    Electro-optical response of an ionic-surfactantdoped nematic cell with homeoplanar-twisted configuration transition / V. S. Sutormin [et al.] // Opt. Mater. Express. - 2014. - Vol. 4, Is. 4. - P. 810-815, DOI 10.1364/OME.4.000810. - Cited References: 16. - This work was partially supported by the Russian Foundation for Basic Research (project No. 12-03-00816), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 30, 24.32, and by the Ministry of Science and Technology of Taiwan under Grant No. NSC 103-2923-M-009-003-MY3 through an NSC-SB-RAS joint project. . - ISSN 2159-3930
   Перевод заглавия: Электрооптический отклик ячейки, заполненной нематиком, допированным ионным сурфактантом, при переходе от гомеопланарной к твист конфигурации.

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
LIQUID-CRYSTAL
   ORIENTATION
   SURFACES
   LAYER
Аннотация: This study is concerned with the optical response of an electro-optical material consisting of nematic liquid crystal as well as ionic surfactant as a dopant. The dopant is a key component to carry out the working of the resulting device through configuration switching. The operational principle is based on the surface anchoring transition induced by a steady electric field. The dynamic characteristics of the electro-optical cell can be considerably improved when the nematic layer is reoriented from the initially homeoplanar director configuration into the twisted state. Besides, a method to shorten the relaxation time is demonstrated by using a controlling pulse with a bipolar waveform. (C)2014 Optical Society of America

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Natl Chiao Tung Univ, Coll Photon, Tainan 71150, Taiwan

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research [12-03-00816]; Siberian Branch of the Russian Academy of Sciences (SB RAS) [30, 24.32]; Ministry of Science and Technology of Taiwan through an NSC-SB-RAS joint project [NSC 103-2923-M-009-003-MY3]
}
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Magnetic-field control of the transmission of a photonic crystal with a liquid-crystal defect / V. A. Gunyakov [et al.] // Tech. Phys. - 2010. - Vol. 55, Is. 10. - P. 1484-1489, DOI 10.1134/S1063784210100142. - Cited References: 16. - This study was supported by the Russian Academy of Sciences (grant nos. NSh-3818.2008.3, RNP.2.1.1.3455, 27.1, and 9.1), Siberian Branch, Russian Academy of Sciences (grant nos. 5 and 144), State contract no. 02. 740.11.0220, and the Federal program "Scientific Manpower and Pedagogical Staff of Innovative Russia." . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
ORIENTATION
LAYER
Аннотация: The method of modulation of transmittance of a multilayer photonic crystal with a nematic liquid-crystal defect upon the orientational transition from the homeotropic to the planar state is investigated. The orientation of the director of the nematic is controlled by a magnetic field in the B-effect mode. The method of recurrent relations is used for numerical simulation of transmission spectra of the photonic crystal structure under investigation.

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Держатели документа:
[Gunyakov, V. A.
Myslivets, S. A.
Parshin, A. M.
Zyryanov, V. Ya.
Arkhipkin, V. G.
Shabanov, V. F.] Russian Acad Sci, Krasnoyarsk Res Ctr, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Gunyakov, V. A.
Myslivets, S. A.
Parshin, A. M.
Zyryanov, V. Ya.
Arkhipkin, V. G.
Shabanov, V. F.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Zyryanov, V. Ya.
Shabanov, V. F.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
КНЦ СО РАН
Kirenskii Institute of Physics, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Parshin, A. M.; Паршин, Александр Михайлович; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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AVERYANOV, E. M.
POLARIZED LUMINESCENCE SPECTRUM OF IMPURITY LIQUID-CRYSTAL - THE DEGENERATION LIFTED AND RENEWED BY RELAXATION / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1993. - Vol. 103, Is. 6. - P. 2018-2038. - Cited References: 45 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
RESOLVED FLUORESCENCE DEPOLARIZATION
   UNIAXIAL MOLECULAR SAMPLES
   NEMATIC ORDER PARAMETERS
   EXCITED-STATES
   SPECTROSCOPY
   MEMBRANES
   FLUOROPHORES
   ORIENTATION
   TRANSITION
   DYES
Аннотация: The general molecular-statistical approach is proposed for the analysis or the polarized luminescence spectrum for impurity molecule of an arbitrary symmetry in the nematic liquid crystal matrix. On the particular example of uniaxial molecules the influence of features of the molecular electron structure, orientational statistics, molecular dynamics, and features of the anisotropic intermolecular coupling upon the positions of maxima v(if)(t) of impurity fluorescence polarized bands J(ij)(t) is studied. For the first time it is shown that all these factors significantly affect the degree of spectrum v(ij)(t) degeneration. For t not-equal 0, relaxation of excited impurity molecule subsystem toward the orientational distribution lifts a partial degeneration of spectrum v(ij), occuring at t not-equal 0, and renews partial or total degeneration of spectrum v(ij) in the limit t = infinity. In the lack of the spectrum v(ij) degeneration for t = 0 the relaxation may restore partial degeneration for t not-equal 0 as a function of the features of electron structure of molecules. The results of work explain the familiar experimental data on the number of independent component v(ij) and relation between them, on dependence of v(ij) upon the order of matrix and impurity subsystem, on the mutual relation in the positions of impurity band polarized component in the absorption and fluorescence spectra.

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Electrically induced anchoring transition in nematics with small or zero dielectric anisotropy / V. S. Sutormin [et al.] // Liq. Cryst. - 2017. - Vol. 44, Is. 3. - P. 577-581, DOI 10.1080/02678292.2016.1225840. - Cited References:23. - This work was supported by Russian Foundation for Basic Research under Grants [15-02-06924 and 16-53-00073] and by the Siberian Branch of Russian Academy of Sciences under Complex Program [II.2P 0358-2015-0010]. V.S.S. acknowledges financial support from Russian Foundation for Basic Research under Grants [16-32-60036 and 16-32-00164]. . - ISSN 0267-8292. - ISSN 1366-5855

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science,
Рубрики:
LIQUID-CRYSTAL
   IONIC MODIFICATION
   ORIENTATION
   ALIGNMENT
   DROPLETS
Кл.слова (ненормированные):
Nematic -- ionic surfactant -- anchoring transition -- hybrid homeoplanar -- structure -- dielectric anisotropy -- electrooptics
Аннотация: The orientational transitions induced by electrically controlled ionic modification of surface anchoring in liquid crystal cells based on the nematics with small or zero dielectric anisotropy Δε are considered. The type of director reorientation is shown to be independent of the sign of dielectric anisotropy and can be the same for the nematics with both negative and positive Δε. Besides, the orientational transition and corresponding switchable optical states do not depend on the Δε value and can be effectively realised even for the nematics with zero dielectric anisotropy.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk, Russia.

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research [15-02-06924, 16-53-00073, 16-32-60036, 16-32-00164]; Siberian Branch of Russian Academy of Sciences [II.2P 0358-2015-0010]
}
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Parshin, A. M.
Structuring of the surface layer of polycarbonate film upon interaction with nematic liquid crystal / A. M. Parshin, V. Y. Zyryanov, V. F. Shabanov // Polym. Sci. Ser. C. - 2018. - Vol. 60, Is. 1. - P. 23-31, DOI 10.1134/S181123821801006X. - Cited References: 24. - This work was partially supported by the Russian Foundation for Basic Research (project nos. 15-02-06924 and 16-53-00073). . - ISSN 1811-2382. - ISSN 1555-614X

РУБ Polymer Science
Рубрики:
TEMPERATURE-DEPENDENCE
   MAGNETIC-FIELD
   ALIGNMENT
   ORIENTATION
Аннотация: The structure formation observed in the surface layer of polycarbonate which proceeds when nematic liquid crystal is deposited on a film is studied. Films prepared from polycarbonate solutions in dichloromethane, chloroform, or pyridine and dried in thermobalance at different temperatures and different drying times are studied. Textures are prepared in the process of domain growth. The effect of the orientation of the disclination lines in a magnetic field and the memory effect of molecular ordering after removal and redeposition of the liquid crystal layer are observed. The process of structure formation is analyzed on the basis of the model of cooperative interaction of liquid crystal molecules with polymer chains taking into account the adsorption mechanism.

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Публикация на русском языке Паршин, Александр Михайлович. Структурообразование в поверхностном слое пленки поликарбоната при взаимодействии с нематическим жидким кристаллом [Текст] / А. М. Паршин, В. Я. Зырянов, В. Ф. Шабанов // Высокомолек. соед. С. - 2018. - Т. 60 № 1. - С. 27-36

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Паршин, Александр Михайлович; Russian Foundation for Basic Research [15-02-06924, 16-53-00073]
}
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