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    Enhanced light absorption with a cholesteric liquid crystal layer / I. V. Timofeev [et al.] // Opt. Mater. Express. - 2013. - Vol. 3, Is. 4. - P. 496-501DOI 10.1364/OME.3.000496
   Перевод заглавия: Усиление поглощения света при помощи холестерического жидкокристаллического слоя
Аннотация: We discuss the trapping features of cholesteric liquid crystal as a self-organized photonic crystal and suggest it for absorption improvement. The imperfection of the absorbing surface is manifested by the reflection originating from the indispensable impedance mismatch. The reflection can be suppressed by an additional surface coating to reflect the light back to the absorber once again. In the simple consideration this reflection loop is possible only twice. For a right-handed CLC coating, the boundary reflection switches the light polarization from left to right circular in the first loop and it switches in the second loop back to the left circular polarization before the emerging light finally escapes from the absorbing process. The enhancement of light absorption is possible in the frequency range as large as the photonic bang gap of the cholesteric layer, which can be adjusted as desired.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Natl Chiao Tung Univ, Coll Photon, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, W.
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Ветров, Степан Яковлевич.
Особенности спектральных свойств холестерического жидкого кристалла с резонансным дефектным слоем нанокомпозита / С. Я. Ветров, М. В. Пятнов, И. В. Тимофеев // Физ. тверд. тела. - 2013. - Т. 55, Вып. 8. - С. 1585-1589. - Работа выполнена при поддержке грантов: г/к 14.В37.21.0730 по ФЦП " Научные и научно-педагогические кадры инновационной России"; N 24.29 Президиума СО РАН; Министерства образования и науки РФ, соглашение 14.B37.21.0730; ОФН РАН N III.9.5; Президиума РАН N 24.29 и 24.31; СО РАН N 43 и 101.
Аннотация: Исследуются спектральные свойства холестерического жидкого кристалла с дефектным слоем нанокомпозита, который состоит из металлических наношаров, диспергированных в прозрачной матрице, и характеризуется эффективной резонансной диэлектрической проницаемостью. Рассчитаны спектры пропускания, отражения и поглощения волн обеих циркулярных поляризаций таких структур, изучено спектральное проявление расщепления дефектной моды при совпадении ее частоты с резонансной частотой нанокомпозита. Установлена существенная зависимость расщепления от концентрации наношаров в дефекте. Показано, что, в зависимости от положения резонансной частоты относительно границ запрещенной зоны холестерика, в спектре пропускания возникает дополнительная полоса прозрачности, соответствующая волнам дифрагирующей круговой поляризации, либо дополнительная запрещенная зона для волн обеих круговых поляризаций, которые существенно модифицируются при вариации как угла падения света, так и шага спирали холестерика.

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Переводная версия Specific features of the spectral properties of a cholesteric liquid crystal with a resonance defective nanocomposite layer. - [Б. м. : б. и.]

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

Доп.точки доступа:
Пятнов, Максим Владимирович; Тимофеев, Иван Владимирович; Timofeev, I.V.; Vetrov S.Y.
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Vetrov, S. Ya.
Specific features of the spectral properties of a cholesteric liquid crystal with a resonance defective nanocomposite layer / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // Phys. sol. st. - 2013. - Vol. 55, Is. 8. - P. 1697–1702DOI 10.1134/S1063783413080258. - Cited References: 27
Аннотация: This paper reports on studying the spectral properties of a cholesteric liquid crystal with a defective layer of a nanocomposite consisting of metallic nanoballs dispersed in a transparent matrix and characterized by an effective resonance dielectric permittivity. The transmission, reflection, and absorption spectra of waves of both circular polarizations have been calculated, and the spectral splitting of the defective mode when its frequency coincides with the resonance frequency of the nanocomposite has been studied. An essential dependence of the splitting on the nanoball concentration in the defect has been established. It has been shown that, depending on the position of the resonance frequency with respect to the boundaries of the cho blesteric band gap, an additional passband appears in the transmission spectrum, which corresponds to waves of the diffracting circular polarization, or an additional band gap for waves of both circular polarizations, which are substantially modified with variations of both the incidence angle of light and the cholesteric helix pitch.

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Публикация на русском языке Ветров, Степан Яковлевич. Особенности спектральных свойств холестерического жидкого кристалла с резонансным дефектным слоем нанокомпозита / С. Я. Ветров // Физика твердого тела. - 2013. - Т. 55, Вып. 8. - С. 1585-1589

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

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич
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Aver'yanov, E. M.
Mean polarizability of molecules and anisotropy of the Lorentz tensor upon a nematic-smectic a phase transition: Their behavior in a homologous series / E.M. Aver'yanov // Russ. J. Phys. Chem. A. - 2012. - Vol. 86, Is. 5. - P. 720-728, DOI 10.1134/S0036024412050044. - Cited References: 37 . - ISSN 0036-0244

РУБ Chemistry, Physical + Anisotropy + Molecules + Phase transitions + Tensors
Рубрики:
CHOLESTERIC LIQUID-CRYSTALS
   REFRACTIVE-INDEX DATA
   A PHASE
   MESOMORPHIC PROPERTIES
   ORIENTATIONAL ORDER
   OPTICAL ANISOTROPY
   LOCAL-FIELD
   POLYMORPHISM
   TEMPERATURE
   A-monotone
   Alkyl chain
   Experimental values
   Homologous series
   Homologues
   Limiting values
   Lorentz
   Mesophases
   Molecular core
   Molecular polarizabilities
   Nematic
   Orientational order parameters
   Polarizabilities
   Polarizability density
   Quadratic dependence
   A-monotone
   Smectic
   Smectic phase
   Smectic phasis
   Smectic-A phasis
Кл.слова (ненормированные):
molecular polarizability -- anisotropy -- phase transition -- nematic -- smectic -- homologues
Аннотация: Experimental values of the mean polarizability of molecules, (gamma) over bar, and components of the Lorentz tensor, L-j, in the nematic and smectic A phases are obtained for a homologous series of n-alkyl-p-(4-ethoxybenzylideneamino)-alpha-methylcinnamates. Dependences of the (gamma) over bar and L-j values on the mesophase temperature, the orientational order parameter S of molecules, and the number n in the homologous series are revealed. The quadratic dependence of (gamma) over bar (S) in the nematic and smectic phases is established that is invariant with respect to the nematic-smectic A transition. Polarizability densities of the molecular core and the alkyl chain are found from the monotone decreasing dependence (gamma) over bar (n)/v (where v is volume per one molecule) in the smectic phase. The presence (or absence) of the odd-even alternation of L-j(n) in the nematic (smectic) phase is shown. A monotone decrease in the Lorentz tensor anisotropy L with an increase in n is revealed in the smectic phase, and limiting values L-j(n -> infinity) are determined.

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Публикация на русском языке Аверьянов, Евгений Михайлович. Изменение средней поляризуемости молекул и анизотропии тензора Лорентца при фазовом переходе нематик – смектик А и в гомологическом ряду [Текст] / Е.М. Аверьянов // Журн. физ. химии : Наука, 2012. - Т. 86 № 5. - С. 810-818

Доп.точки доступа:
Аверьянов, Евгений Михайлович
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Vetrov, S. Y.
Surface modes in "photonic cholesteric liquid crystal-phase plate-metal" structure / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // Opt. Lett. - 2014. - Vol. 39, Is. 9. - P. 2743-2746, DOI 10.1364/OL.39.002743. - Cited References: 22. - This work was partially supported by the Russian Foundation for Basic Research (project no. 14-02-31248) and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 43, 101, 24.29, Grant of the President of the Russian Federation MK-250.2013.2, and by the National Science Council (NSC) of Taiwan under Grant No. NSC 103-2923-M-009-003-MY3 through a NSC-SB-RAS joint project. . - ISSN 0146-9592. - ISSN 1539-4794

РУБ Optics
Рубрики:
OPTICAL TAMM STATES
Аннотация: The light transmission spectrum has been calculated for a "cholesteric liquid crystal-phase plate-metal" structure. It is shown that the system can have an isolated waveguide surface mode with characteristics efficiently controllable by external fields acting on the cholesteric. The degree of localization of surface modes and the transmission coefficients have been found to differ considerably for the light of different polarizations. (C) 2014 Optical Society of America

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Med Univ Named Prof VF Voyno Ya, Krasnoyarsk 660022, Russia

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Russian Foundation for Basic Research [14-02-31248]; Siberian Branch of the Russian Academy of Sciences (SB RAS) [43, 101, 24.29]; President of the Russian Federation [MK-250.2013.2]; National Science Council (NSC) of Taiwan [NSC 103-2923-M-009-003-MY3]
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Vetrov, S. Ya.
Photonic defect modes in a cholesteric liquid crystal with a resonant nanocomposite layer and a twist defect / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // Phys. Rev. E. - 2014. - Vol. 90, Is. 3. - Ст. 32505, DOI 10.1103/PhysRevE.90.032505. - Cited References: 36. - This work was partially supported by Grants No. 43, No. 101, and No. 24.29 of SB RAS; Russian Fund of Fundamental Research Grant No. 14-02-31248; Russian Ministry of Education and Science under the Government program, Project No. 3.1276.2014/K; Grant of the President of the Russian Federation Grant No. MK-250.2013.2, and the NSCT-SB RAS joint project. . - ISSN 1539-3755. - ISSN 1550-2376

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
OPTICAL-PROPERTIES
   GENERATION
   MEDIA
   FILMS
Аннотация: We have studied spectral properties of a cholesteric liquid crystal with a combined defect consisting of a nanocomposite layer and a twist. The nanocomposite layer is made of metallic nanoballs dispersed in a transparent matrix and featuring effective resonant permittivity. A solution has been found for the transmission spectrum of circularly polarized waves in the structure. We have analyzed spectral splitting of the defect mode in the band gap of the cholesteric when its frequency coincides with the nanocomposite resonant frequency. Defect modes have characteristics strongly dependent on the magnitude and the sign of the phase difference of the cholesteric helix on both sides of the defect layer. It has been found that the band gap width and the position and localization degree of defect modes can be effectively controlled by external fields applied to the cholesteric.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia
Krasnoyarsk State Med Univ, Krasnoyarsk 660022, Russia
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Pyatnov, M. V.; Пятнов, Максим Владимирович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; SB RAS [43, 101, 24.29]; Russian Fund of Fundamental Research Grant [14-02-31248]; Russian Ministry of Education and Science under the Government program [3.1276.2014/K]; Russian Federation [MK-250.2013.2]; NSCT-SB RAS joint project
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Pyatnov, M. V.
Controlled photonic surface modes in 'cholesteric liquid crystal - Phase plate - Metal' structure / M. V. Pyatnov, S. Ya. Vetrov, I. V. Timofeev // Progress in Electromagnetics Research Symposium : Proceedings. - 2015. - Vol. 2015-January. - P. 224-227 . - ISBN 9781934142301
Кл.слова (ненормированные):
Cholesteric liquid crystals -- Crystal structure -- Light transmission -- Liquid crystals -- Liquids -- Optical Kerr effect -- Plates (structural components) -- Chiral media -- External fields -- Forward-and-backward -- Light transmission spectra -- Propagation of lights -- Surface modes -- Waveguide surfaces -- Plate metal
Аннотация: Light transmission spectrum has been calculated for a 'cholesteric liquid crystal-phase plate-metal' structure. It is shown that the system can have an isolated waveguide surface mode with characteristics efficiently controllable by external fields acting on the cholesteric. This mode is similar to optical Tamm state. We observed anisotropy of transmission of the structure under consideration in the propagation of light of a certain polarization in forward and backward directions. This property is inherent in optically chiral media, such as the cholesteric liquid crystal.

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Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Progress In Electromagnetics Research Symposium(2015 ; July 6-9 ; Prague)
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Hybrid anchoring for a color-reflective dual-frequency cholesteric liquid crystal device switched by low voltages / Y. C. Hsiao [et al.] // Opt. Mater. Express. - 2015. - Vol. 5, Is. 11. - P. 2715-2720, DOI 10.1364/OME.5.002715. - Cited References:17. - This work was financially sponsored by the Ministry of Science and Technology, Taiwan, under grant No. 103-2923-M-009-003-MY3, by the Russian Foundation for Basic Research (project No. 14-02-31248), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through an NSC-SB-RAS joint project between Taiwan and Russia . - ISSN 2159-3930

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
Photonic structure
Drive scheme
Modulation
Аннотация: Cholesteric liquid crystal (CLC) materials used in electro-optical (EO) devices are characterized by high operating voltage and slow response speed, which hinders their further development in display applications. Dual-frequency CLCs (DFCLCs) can solve the problem of slow bistable transition, but the operating voltage is still high, especially in color-reflective DFCLC cells. Here we report a simple approach to lowering the switching voltage as well as to shortening the response time. This technique adopts hybrid surface treatment to modulate the structural arrangement of CLC molecules. Both planar-and vertical-alignment layers are employed and coated on one and the other substrates separately to improve the electro-optical properties of DFCLCs. We show that the threshold voltage for switching can be decreased to as low as 5 V and the shortest response time is measured to be 0.8 ms, which renders CLC EO devices including displays more practical for commercial purpose.

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Держатели документа:
Natl Chiao Tung Univ, Coll Photon, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Hsiao, Yu-Cheng; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, Wei; Ministry of Science and Technology, Taiwan [103-2923-M-009-003-MY3]; Russian Foundation for Basic Research [14-02-31248]; Siberian Branch of the Russian Academy of Sciences (SB RAS) through an NSC-SB-RAS joint project between Taiwan and Russia
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Vetrov, S. Ya.
Spectral and polarization properties of a ‘cholesteric liquid crystal—phase plate—metal’ structure / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // J. Opt. - 2016. - Vol. 18, Is. 1. - Ст. 015103, DOI 10.1088/2040-8978/18/1/015103. - Cited References:34. - This work was supported by the Russian Foundation for Basic Research, project no. 14-02-31248, and the Ministry of Education and Science of the Russian Federation, Government program, project no. 3.1276.2014/K. . - ISSN 2040-8978. - ISSN 2040-8986

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

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

Доп.точки доступа:
Pyatnov, M. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Russian Foundation for Basic Research [14-02-31248]; Ministry of Education and Science of the Russian Federation, Government program [3.1276.2014/K]
}
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10.

Gardymova, A. P.
Multistability in polymer-dispersed cholesteric liquid crystal film doped with ionic surfactant / A. P. Gardymova, V. Y. Zyryanov, V. A. Loiko // Tech. Phys. Lett. - 2011. - Vol. 37, Is. 9. - P. 805-808, DOI 10.1134/S1063785011090094. - Cited References: 12. - This study was supported in part by the Federal Targeted Program "Scientific and Pedagogical Personnel for Innovative Russia" (project no. P901) and the Siberian Branch of the Russian Academy of Sciences (project nos. 110 and 144). . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
REFLECTIVE DISPLAYS
Аннотация: A memory effect has been discovered in composite films based on a polymer containing dispersed cholesteric liquid crystal, which is related to the modification of the surface anchoring by an ionic surfactant under the action of an applied electric field. Parameters of electric signals are selected that ensure the switching of the composite film between some stable states with different levels of optical transmittance.

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Держатели документа:
[Gardymova, A. P.] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, Byelarus
ИФ СО РАН
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus

Доп.точки доступа:
Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Loiko, V. A.
}
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11.

Shabanov, A. V.
Reflection spectrum of a cholesteric liquid crystal with structural defects / A. V. Shabanov, S. Y. Vetrov, A. Y. Karneev // JETP Letters. - 2004. - Vol. 80, Is. 3. - P. 181-184, DOI 10.1134/1.1808846. - Cited References: 13 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
MODES
Аннотация: An expression is obtained for the reflection coefficient of circularly polarized light normally incident on the film of a cholesteric liquid crystal with a variable helix pitch. It is shown that, in the case of a single defect (local change in the helix pitch), the spectrum of light reflection from a cholesteric acquires a dip corresponding to the defect mode. New qualitative features appear in the reflection spectrum of a cholesteric with two defects as the distance between them varies. (C) 2004 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Technical Unversity, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Vetrov, S. Y.; Karneev, A. Y.; Шабанов, Александр Васильевич
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12.

Beloshapkin, V. V.
Regular and chaotic structures of the cholesteric liquid-crystal in an external-field / V. V. Beloshapkin, A. G. Tretyakov // Phys. Lett. A. - 1984. - Vol. 106, Is. 1-2. - P. 47-50, DOI 10.1016/0375-9601(84)90490-0. - Cited References: 9 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Tretyakov, A. G.; Третьяков, Александр Григорьевич; Белошапкин, Валерий Васильевич
}
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13.

Aver'yanov, E. M.
Local-field anisotropy in cholesteric liquid crystals / E. M. Aver'yanov // JETP Letters. - 2009. - Vol. 89, Is. 7. - P. 324-327, DOI 10.1134/S0021364009070030. - Cited References: 12. - This work was supported by the Presidium of the Russian Academy of Sciences ( Basic Research Program, project no. 27.1) and by the Siberian Branch, Russian Academy of Sciences ( Interdisciplinary Basic Research Program, project no. 5). . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
ORDER
POLARIZABILITY
Аннотация: The first experimental values of the Lorentz tensor components L (j) for the cholesteric and smectic A phases of derivatives of cholesterol have been obtained using the dispersion of the refractive indices in the visible range. The temperature dependence of the components L (j) has been determined; it is invariant with respect to the cholesteric-smectic A phase transition. The effect of the isotropization of the Lorentz and local field tensors with decreasing anisotropy of the molecular polarizability has been revealed.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Аверьянов, Евгений Михайлович; Presidium of the Russian Academy of Sciences; Siberian Branch, Russian Academy of Sciences
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14.

Memory effects in polymer-encapsulated cholesteric liquid-crystals / V. Ya. Zyryanov, S. L. Smorgon, V. A. Zhulkov, V. F. Shabanov // JETP Letters. - 1994. - Vol. 59, Is. 8. - P. 547-550. - Cited References: 6 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

Аннотация: Optical memory effects have been studied in films of polymer-encapsulated cholesteric liquid crystals. Information is recorded in forward and reverse regimes by a thermal-contact or thermooptic method. The information can be erased by charging the strength of an electric field.

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Публикация на русском языке Эффекты памяти в капсулированных полимером холестерических жидких кристаллов [Текст] / В. Я. Зырянов, С. Л. Сморгон, В. А. Жуйков, В. Ф. Шабанов // Письма в журн. технич. физ. - 1994. - Т. 59 Вып. 8. - С. 520-522

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Smorgon, S. L.; Сморгон, Сергей Леонидович; Zhulkov, V. A.; Жуйков, Владимир Александрович; Shabanov, V. F.; Шабанов, Василий Филиппович
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15.

Some features of the local field in nematic and cholesteric liquid-crystals with small optical anisotropy / E. M. Averyanov, P. V. Adomenas, V. A. Zhuikov [et al.] // Zhurnal Eksperimentalnoi Teor. Fiz. - 1984. - Vol. 87, Is. 5. - P. 1686-1695. - Cited References: 33 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Averyanov, E. M.; Аверьянов, Евгений Михайлович; Adomenas, P. V.; Zhuikov, V. A.; Жуйков, Владимир Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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16.

Thermooptical information record in polymer-capsulated cholesteric liquid crystals / V. Y. Zyryanov [и др.] // Zhurnal Tek. Fiz. - 1996. - Vol. 66, Is. 8. - P. 99-106. - Cited References: 9 . - ISSN 0044-4642

РУБ Physics, Applied

WOS

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Zhuikov, V. A.; Жуйков, Владимир Александрович; Smorgon, S. L.; Сморгон, Сергей Леонидович; Shabanov, V. F.; Шабанов, Василий Филиппович; Adomenas, P. V.
}
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17.

Grayness scale during thermocontact information recording in polymer-encapsulated cholesteric liquid crystals / A. V. Barannik [и др.] // Zhurnal Tek. Fiz. - 1996. - Vol. 66, Is. 5. - P. 177-179. - Cited References: 7 . - ISSN 0044-4642

РУБ Physics, Applied

WOS

Доп.точки доступа:
Barannik, A. V.; Баранник, Алексей Владимирович; Zhuikov, V. A.; Жуйков, Владимир Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Smorgon, S. L.; Сморгон, Сергей Леонидович; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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18.

    Chiral optical Tamm states: temporal coupled-mode theory / I. V. Timofeev [et al.] // Crystals. - 2017. - Vol. 7, Is. 4. - Ст. 113, DOI 10.3390/cryst7040113. - Cited References:71. - This work was financially sponsored by the Ministry of Science and Technology (MOST), Taiwan, under Grant No. 106-2923-M-009-002-MY3, the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, the Krasnoyarsk Region Science and Technology Support Fund to the research project No. 17-42-240464, the Scholarship of the President of the Russian Federation No. SP-227.2016.5 and by the Siberian Branch of the Russian Academy of Sciences under Complex Program II.2P (Project Nos. 0356-2015-0410 and 0356-2015-0411). The authors are thankful to A.F. Sadreev, E.N. Bulgakov, N.V. Rudakova, Y.-C. Hsiao and L.V. Pertseva for valuable discussions and comments. . - ISSN 2073-4352
   Перевод заглавия: Хиральные оптические Таммовские состояния: теория временной связанной моды

РУБ Crystallography + Materials Science, Multidisciplinary
Рубрики:
CHOLESTERIC LIQUID-CRYSTAL
SCULPTURED THIN-FILMS
PHOTONIC DEFECT
Кл.слова (ненормированные):
optical Tamm state -- cholesteric liquid crystal -- handedness-preserving mirror
Аннотация: The chiral optical Tamm state (COTS) is a special localized state at the interface of a handedness-preserving mirror and a structurally chiral medium such as a cholesteric liquid crystal or a chiral sculptured thin film. The spectral behavior of COTS, observed as reflection resonances, is described by the temporal coupled-mode theory. Mode coupling is different for two circular light polarizations because COTS has a helical structure replicating that of the cholesteric. The mode coupling for co-handed circularly polarized light exponentially attenuates with the cholesteric layer thickness since the COTS frequency falls into the stop band. Cross-handed circularly polarized light freely goes through the cholesteric layer and can excite COTS when reflected from the handedness-preserving mirror. The coupling in this case is proportional to anisotropy of the cholesteric and theoretically only anisotropy in magnetic permittivity can ultimately cancel this coupling. These two couplings being equal result in a polarization crossover (the Kopp-Genack effect) for which a linear polarization is optimal to excite COTS. The corresponding cholesteric thickness and scattering matrix for COTS are generally described by simple expressions.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Natl Chiao Tung Univ, Coll Photon, Inst Imaging & Biomed Photon, Tainan 71150, Taiwan.

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Pankin, Pavel S.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Lee, Wei; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Ministry of Science and Technology (MOST), Taiwan [106-2923-M-009-002-MY3]; Russian Foundation for Basic Research; Krasnoyarsk Region Science and Technology [17-42-240464]; Scholarship of the President of the Russian Federation [SP-227.2016.5]; Siberian Branch of the Russian Academy of Sciences [0356-2015-0410, 0356-2015-0411]; Government of Krasnoyarsk Territory
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19.

Untwisting of the helical structure of cholesteric droplets with homeotropic surface anchoring / M. N. Krakhalev [et al.] // JETP Letters. - 2017. - Vol. 105, Is. 1. - P. 51-54, DOI 10.1134/S002136401701012X. - Cited References:35. - This work was supported in part by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Region (project no. 16-42-240704r_a). The work of A.V.E on the theoretical analysis of the structure of liquid crystal droplets was supported by the Russian Science Foundation (project no. 16-43-03010). The work of Jui-Hsiang Liu was supported by the Ministry of Science and Technology of Taiwan (contract no. MOST105-2923-E-006-007). . - ISSN 0021-3640. - ISSN 1090-6487

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTAL DROPLETS
   CYLINDRICAL CAVITIES
   TRANSITION
   KNOTS
Аннотация: Cholesteric droplets dispersed in a polymer with homeotropic surface anchoring are studied. A director configuration with the bipolar distribution of the axis of the helix is formed in droplets. The untwisting of the helical structure (i.e., an increase in the pitch of the helix) is experimentally observed at a decrease in the size of droplets. This dependence is analyzed for liquid crystal droplets with various concentrations of the chiral addition. A proposed empirical relation describes well the correlation of the helix pitch and the size of droplets in the studied samples.

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Публикация на русском языке Раскрутка спиральной структуры капель холестерика с гомеотропным поверхностным сцеплением [Текст] / М. Н. Крахалев [и др.] // Письма в Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 105 Вып. 1-2. - С. 43-46

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119991, Russia.
Natl Cheng Kung Univ, Dept Chem Engn, Tainan 70101, Taiwan.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Gardymova, A. P.; Emel'yanenko, A. V.; Liu, Jui-Hsiang; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research; Government of the Krasnoyarsk Region [16-42-240704r_a]; Russian Science Foundation [16-43-03010]; Ministry of Science and Technology of Taiwan [MOST105-2923-E-006-007]
}
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20.

Orientational transition in the cholesteric layer induced by electrically controlled ionic modification of the surface anchoring / V. S. Sutormin [et al.] // Liq. Cryst. - 2017. - Vol. 44, Is. 3. - P. 484-489, DOI 10.1080/02678292.2016.1218557. - Cited References:38. - This work was supported by Russian Foundation for Basic Research (RFBR) [Grant Numbers 15-02-06924 and 16-53-00073] and by the Siberian Branch of the Russian Academy of Sciences under Complex Program [II.2P 0358-2015-0010]. V.S.S. acknowledges financial support from RFBR [Grant Numbers 16-32-60036 and 16-32-00164]. . - ISSN 0267-8292. - ISSN 1366-5855

РУБ Chemistry, Multidisciplinary + Crystallography + Materials Science,
Рубрики:
NEMATIC LIQUID-CRYSTALS
   FIELD
   DROPLETS
   CELL
   ALIGNMENT
   GRATINGS
Кл.слова (ненормированные):
Cholesteric -- ionic surfactant -- anchoring transition -- twisted hybrid -- structure -- electrooptics
Аннотация: A reorientation of cholesteric liquid crystal with a large helix pitch induced by the electrically controlled ionic modification of the surface anchoring has been studied. In initial state, the cholesteric helix is untwisted completely owing to the normal surface anchoring specified by the cations adsorbed at the substrates. As a result, the homeotropic director configuration is observed within the cell. Under the action of DC electric field, one of the substrates becomes free from the layer of surface active cations, therefore, setting the planar surface anchoring. The latter, in turn, leads to the formation of the hybrid chiral structure. The threshold value and dynamic parameters have been estimated for this process as well as the range of control voltages, which do not allow the electrohydrodynamic instabilities. The twisted hybrid director configuration observed in the experiment has been analysed by means of the simulation of polarisation change of light propagating through the cholesteric layer with asymmetric (planar and homeotropic) surface anchoring on the cell substrates.

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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; Timofeev, I. V.; Тимофеев, Иван Владимирович; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research (RFBR) [15-02-06924, 16-53-00073]; Siberian Branch of the Russian Academy of Sciences [II.2P 0358-2015-0010]; RFBR [16-32-60036, 16-32-00164]
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