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Гардымова, А. П.
Ориентационная структура в каплях холестерика, допированного поверхностно-активным веществом [Текст] / Гардымова А.П., Прищепа О.О., Зырянов В.Я. // Физико-химические процессы в конденсированных средах и на межфазных границах : ФАГРАН-2008 : IV Всерос. конф., Воронеж, 6-9 окт. 2008 г. : материалы конф. : [в 2 т.]. - 2008. - Т. 2. - С. 705-708

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

Доп.точки доступа:
Прищепа, Оксана Олеговна; Prishchepa, O. O.; Зырянов, Виктор Яковлевич; Zyryanov, V. Y.; "Физико-химические процессы в конденсированных средах и на межфазных границах", Всероссийская конференция(4 ; 2008 ; окт. ; Воронеж)
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Tunable bi-functional photonic device based on one-dimensional photonic crystal infiltrated with a bistable liquid-crystal layer / C. Y. Wu [et al.] // Optics Express. - 2011. - Т. 19, № 8. - P7349-7355, DOI 10.1364/OE.19.007349 . - ISSN 1094-4087

РИНЦ
Держатели документа:
Center for Nanotechnology,Chung Yuan Christian University
Department of Electrical Engineering,Chung Yuan Christian University
Department of Physics,Chung Yuan Christian University
Kirensky Institute of Physics,Krasnoyarsk Scientific Center,Siberian Branch of the Russian Academy of Sciences
Master Program in Nanotechnology,Chung Yuan Christian University

Доп.точки доступа:
Wu, C. Y.; Hsu, J. S.; Lee, W.; Zou, Y. H.; Timofeev, I.; Zyryanov, V. Y.; Lin, Y. T.
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Prischepa, O. O.
Transformation of director configuration upon changing boundary conditions in droplets of nematic liquid crystal / O. O. Prischepa, A. V. Shabanov, V. Y. Zyryanov // JETP Letters. - 2004. - Vol. 79, Is. 6. - P. 257-261, DOI 10.1134/1.1759405. - Cited References: 12 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
ISOTROPIC LIQUID
DROPS
Аннотация: The transformation of the director configuration upon changing boundary conditions from planar to homeotropic for bipolar nematic droplets dispersed in a polymeric matrix was studied. The characteristic textural patterns are presented for droplets with different concentrations of homeotropic surfactants, and their orientational structure is identified. The scenario predicted earlier by G.E. Volovik and O.D. Lavrentovich (ZhETF 85, 1997 (1983)) for the transformation of orientational structure of nematic droplets from bipolar to radial, without the formation of additional disclinations, is revealed. It is shown that, by using the computational method of minimization of the director elastic-strain energy in the droplet bulk and by introducing the inhomogeneous boundary conditions, one can obtain orientational structures that are analogous to the observed ones.(C) 2004 MAIK "Nauka / Interperiodica".

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

Доп.точки доступа:
Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Prishchepa, O. O.
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Thermooptical switching in a one-dimensional photonic crystal / V. A. Gunyakov [et al.] // Tech. Phys. Lett. - 2006. - Vol. 32, Is. 11. - P. 951-953, DOI 10.1134/S1063785006110137. - Cited References: 9 . - ISSN 1063-7850

РУБ Physics, Applied

Аннотация: The temperature dependence of the optical transmission spectrum of a one-dimensional multilayer photonic crystal structure with a central defect layer has been studied. The defect was represented by a nematic liquid crystal (5CB) layer with a homeotropic orientation. It is shows that the defect modes exhibit a 10-nm spectral shift due to a change in the refractive index of the liquid crystal in the course of heating-induced transition to the isotropic phase. A comparison of the experimental data to the results of heating-induced transition to the isotropic phase. A comparison of the experimental data to the results of numerical analysis shows the importance of allowance for the decay of defect modes.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk, Russia
Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk State Technical University, Krasnoyarsk, Russian Federation
Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Gerasimov, V. P.; Герасимов, Виктор Петрович; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Kamaev, G. N.; Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
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Small-Angle Light Scattering from Polymer-Dispersed Liquid-Crystal Films / V. A. Loiko [et al.] // J. Exp. Theor. Phys. - 2008. - Vol. 107, Is. 4. - P. 692-698, DOI 10.1134/S1063776108100178. - Cited References: 20 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
NEMATIC DROPLETS
Кл.слова (ненормированные):
ABS resins -- Angular distribution -- Drop formation -- Drops -- Light -- Light scattering -- Phase transitions -- Plastic films -- Polymer films -- Polymers -- Polynomial approximation -- Powders -- Angle light scatterings -- Anomalous diffractions -- Crystal films -- Cylindrical symmetries -- Droplet sizes -- Induced phase transitions -- Optical wavelengths -- PDLC films -- Scattered lights -- Scattering approximations -- Single layers -- Liquid crystal polymers
Аннотация: A method is developed for modeling and computing the angular distribution of light scattered forward from a single-layer polymer-dispersed liquid-crystal (PDLC) film. The method is based on effective-medium approximation, anomalous diffraction approximation, and far-field single-scattering approximation. The angular distribution of forward-scattered light is analyzed for PDLC films with droplet size larger than the optical wavelength. The method can be used to study field- and temperature-induced phase transitions in LC droplets with cylindrical symmetry by measuring polarized scattered light intensity.

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Держатели документа:
[Loiko, V. A.
Konkolovich, A. V.
Misckevich, A. A.] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, Byelarus
[Maschke, U.] Univ Sci & Technol Lille, Lab Chim Macromol, F-59655 Villeneuve Dascq, France
[Zyryanov, V. Ya.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus
Laboratoire de Chimie Macromoleculaire, Universite des Sciences et Technologies de Lille, Villeneuve d'Ascq Cedex F-59655, France
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Loiko, V. A.; Maschke, U.; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Konkolovich, A. V.; Misckevich, A. A.
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Orientational structure transformations caused by the electric-field-induced ionic modification of the interface in nematic droplets / V. Y. Zyryanov [et al.] // JETP Letters. - 2007. - Vol. 86, Is. 6. - P. 383-388, DOI 10.1134/S0021364007180087. - Cited References: 18 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID
TRANSITIONS
FILMS
Аннотация: The films of a polymer-dispersed nematic liquid crystal doped with an ionic surfactant were studied. The surface-anchoring modification effect caused by the local increase in the concentration of surface-active ions was observed at the polymer-liquid crystal interface under the action of an electric field. The modification of the boundary conditions leads to the transformation of the orientational structure of the nematic droplets and, as a result, to an appreciable change in their texture patterns and light-scattering efficiency at the interfaces. The monopolar director configurations (normal and curved) arising in the process of orientational structure transformations are considered and their typical textures are demonstrated. The possibility that the monopolar structure can be formed is theoretically substantiated by the computer simulation of the director field in a nematic droplet with the boundary conditions corresponding to the experiment.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Krasnoyarsk Scientific Center, Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Shabanov, A. V.; Шабанов, Александр Васильевич
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Optimization of the contrast, brightness, and modulation amplitude of light in electrooptic devices based on polymer-encapsulated ferroelectric liquid crystals / V. Y. Zyryanov [et al.] // Tech. Phys. Lett. - 1998. - Vol. 24, Is. 6. - P. 483-484, DOI 10.1134/1.1262154. - Cited References: 6 . - ISSN 1063-7850

РУБ Physics, Applied

Аннотация: An analysis is made of the relations connecting the maximum optical transmittance, the light modulation amplitude, and the contrast in a polymer-encapsulated ferroelectric liquid-crystal device to the geometry of device and the tilt angle theta of the director. The correctness of the calculations is confirmed by their agreement with experimental measurements. (C) 1998 American Institute of Physics. [S1063-7850(98)02806-7].

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk, Russia
ИФ СО РАН

Доп.точки доступа:
Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Smorgon, S. L.; Сморгон, Сергей Леонидович; Shabanov, A. V.; Шабанов, Александр Васильевич; Pozhidaev, E. P.
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One-dimensional photonic crystals with a planar oriented nematic layer: Temperature and angular dependence of the spectra of defect modes / V. G. Arkhipkin [et al.] // J. Exp. Theor. Phys. - 2008. - Vol. 106, Is. 2. - P. 388-398, DOI 10.1134/S1063776108020179. - Cited References: 58 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTAL
   TRANSMISSION SPECTRUM
   BANDGAP STRUCTURES
   PERIODIC STRUCTURE
   REFRACTIVE-INDEX
   LATTICE-DEFECTS
   LASER
   ENHANCEMENT
   SILICON
   MICROCAVITIES
Аннотация: Transmission spectra of a one-dimensional photonic crystal (PC) formed by two multilayer dielectric mirrors and a planar oriented layer of 5CB nematic liquid crystal (LC) that is sandwiched between these mirrors and serves as a structure defect are investigated experimentally. Specific features of the behavior of the spectrum of defect modes as a function of the angle of incidence of light on the crystal are studied for two polarizations: parallel and perpendicular to the director of the LC; the director either lies in the plane of incidence or is perpendicular to it. It is shown that, for the configurations considered, the maxima of the defect modes shift toward the short-wavelength region as the tilt angle of incidence radiation increases; this tendency is more manifest for the parallel-polarized component, when the director lies in the plane of incidence. In the latter case, the width of the photonic band gap (PBG) appreciably decreases. The temperature dependence of the polarization components of the transmission spectra of a PC is investigated in the case of normal incidence of light. The spectral shift of defect modes due to the variation of the refractive index of the LC at the nematic-isotropic liquid phase transition point is measured. It is shown that, in real PCs, the amplitude of defect modes decreases when approaching the center of the band gap, as well as when the number of layers in the dielectric mirrors increases. Theoretical transmission spectra of the PCs calculated by the method of recurrence relations with regard to the decay of defect modes are in good agreement with experimental data.

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Держатели документа:
[Arkhipkin, V. G.
Gunyakov, V. A.
Myslivets, S. A.
Gerasimov, V. P.
Zyryanov, V. Ya.
Vetrov, S. Ya.
Shabanov, V. F.] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Gerasimov, V. P.; Герасимов, Виктор Петрович; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Vetrov, S. Y.; Shabanov, V. F.; Шабанов, Василий Филиппович
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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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10.

Multichannel photonic devices based on tristable polymer-stabilized cholesteric textures / Y. C. Hsiao [et al.] // Optics Express. - 2011. - Т. 19, № 24. - P23952-23957, DOI 10.1364/OE.19.023952 . - ISSN 1094-4087

РИНЦ
Держатели документа:
Center for Nanotechnology,Chung Yuan Christian University
Department of Physics,Chung Yuan Christian University
Kirensky Institute of Physics,Krasnoyarsk Scientific Center,Siberian Branch of the Russian Academy of Sciences

Доп.точки доступа:
Hsiao, Y. C.; Hou, C. T.; Lee, W.; Zyryanov, V. Y.
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