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Найдено документов в текущей БД: 9

    Electro- and magneto-optical switching of defect modes in one- dimensional photonic crystals
/ V. G. Arkhipkin [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 112, Is. 4. - P. 577-587, DOI 10.1134/S1063776111040017. - Cited References: 35. - We thank A. M. Parshin for help with the magneto-optical measurements. This work was supported by grant no. NSC98-2923-M-033-001-MY3; nos. 27.1 and 9.1 RAS; nos. 5 and 144 SB RAS; State contract no. 02.740.11.0220 ("Scientific and Scientific-Pedagogical Personnel of Innovational Russia" Federal Goal-Oriented Program). . - ISSN 1063-7761
РУБ Physics, Multidisciplinary

Аннотация: The transmission spectra of polarized light waves in a photonic crystal/liquid crystal (PC/LC) cell placed between crossed polarizers and controlled by an electric or magnetic field have been studied experimentally and theoretically. Electro- and magneto-optical switching based on the interference of polarized defect modes has been demonstrated. The transmission spectra of the PC/LC cell have been calculated as a function of the voltage applied to the LC layer and the magnetic field strength. The results of the calculations agree well with the experimental data.

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Держатели документа:
[Arkhipkin, V. G.
Gunyakov, V. A.
Myslivets, S. A.
Zyryanov, V. Ya.
Shabanov, V. F.] Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Arkhipkin, V. G.
Gunyakov, V. A.
Myslivets, S. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Zyryanov, V. Ya.
Shabanov, V. F.] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
[Lee, Wei] Chung Yuan Chistian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Chistian Univ, Dept Phys, Chungli 32023, Taiwan
ИФ СО РАН
Krasnoyarsk Scientific Center, Kirensky Institute of Physics, Russian Academy of Science, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Siberian State Aerospace University, Krasnoyarsk 660014, Russian Federation
Department of Physics, Center for Nanotechnology, Chung Yuan Chistian University, Chung-Li, 32023, China

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

    Director configurations in nematic droplets with inhomogeneous boundary conditions
/ O. O. Prishchepa, A. V. Shabanov, V. Y. Zyryanov // Phys. Rev. E. - 2005. - Vol. 72, Is. 3. - Ст. 31712, DOI 10.1103/PhysRevE.72.031712. - Cited References: 22 . - ISSN 1539-3755
РУБ Physics, Fluids & Plasmas + Physics, Mathematical

Аннотация: The nematic droplets with director configurations intermediate between the bipolar and radial structures have been investigated experimentally and theoretically. The liquid crystal 4(')-n-pentyl-4-cyanobiphenyl (5CB) with a variable addition of the lecithin dispersed in polyvinylbutyral has been used. The characteristic textures of the droplets formed at various lecithin contents have been examined using polarizing microscope both in the crossed polarizers and without analyzer. The computer simulation has been performed for proper ordering of the director in spherical nematic droplets by minimizing the free energy in the one-constant approximation. The inhomogeneous boundary conditions with strong anchoring of the molecules at the interface have been used. The distribution of the anchoring angle at the droplet surface has been estimated based on analysis of observed patterns. The simulated textures of the droplets under crossed polarizers are shown to compare well with the experimental ones.

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Держатели документа:
LV Kirenskii Inst Phys, Akademgorodok, Krasnoyarsk 660036, Russia
ИФ СО РАН
L.V. Kirensky Institute of Physics, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Y.; Зырянов, Виктор Яковлевич; Прищепа, Оксана Олеговна

    Polymer dispersed nematic liquid crystal films with conical boundary conditions for electrically controllable polarizers
/ M. N. Krakhalev [et al.] // Opt. Mater. - 2019. - Vol. 89. - P. 1-4, DOI 10.1016/j.optmat.2019.01.004. - Cited References: 38. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (No 18-42-243006); Russian Foundation for Basic Research (No 16-32-60036). . - ISSN 0925-3467. - ISSN 1873-1252
   Перевод заглавия: Пленки капсулированного полимером нематического жидкого кристалла с коническими граничными условиями для электроуправляемых поляризаторов
РУБ Materials Science, Multidisciplinary + Optics

Аннотация: Polymer dispersed nematic liquid crystal (PDNLC) films with conical boundary conditions at the LC-polymer interface are considered. The conical surface anchoring with tilt angle 40° initiates forming the axial-bipolar director configuration inside nematic droplets. This droplet structure exhibits the strong scattering of light polarized parallel to the bipolar axis. In the initial state, the bipolar axes in all droplets are oriented randomly, and therefore PDNLC film scatters a light of any polarization. Electric field applied along the film plane orients the bipolar axes unidirectionally in the whole droplet ensemble, that results in its high polarization-dependent transmittance. Such PDNLC films can be used in the electrically controllable linear polarizers characterized by 89% value of the transmittance for the perpendicular polarized light and high extinction ratio 590:1 at the electric field 0.34 V/μm.

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

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-42-243006]; Russian Foundation for Basic Research [16-32-60036]

    Polymer dispersed liquid crystal films with conical boundary conditions for electrically controllable polarizers
/ O. O. Prishchepa [et al.] // 15th Eur. Conf. Liq. Cryst. (ECLC) : conf. progr. - 2019. - Ст. H2-O-33. - Cited References: 2. - The study was funded by the Russian Foundation for Basic Research (grant No. 18-42-243006)


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Доп.точки доступа:
Prishchepa, O. O.; Прищепа, Оксана Олеговна; Feyzer, K. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Loiko, V. A.; Miskevich, A. A.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; European Conference on Liquid Crystals(15 ; 2019 ; June 30 - July 5 ; Wroclaw, Poland)

    Magnetic-field tunable defect modes in a photonic-crystal/liquid-crystal cell
/ V. Ya. Zyryanov [et al.] // Opt. Express. - 2010. - Vol. 18, Is. 2. - P. 1283-1288, DOI 10.1364/OE.18.001283. - Cited Reference Count: 15. - Гранты: This work was partially supported by the Russian Federal Grant No. 02.740.11.0220 and SB RAS Grant Nos. 5, 27.1 and 144. W. Lee gratefully acknowledges financial support from the National Science Council of the Republic of China (Taiwan) under Grant No. NSC 98-2923-M-033-001-MY3 dedicated to an internationally joint effort between Russia and Taiwan. - Финансирующая организация: Russian Federal [02.740.11.0220]; SB RAS [5, 27.1, 144]; National Science Council of the Republic of China (Taiwan) [NSC 98-2923-M-033-001-MY3] . - JAN 18. - ISSN 1094-4087
Аннотация: Light transmission spectrum of a multilayer photonic crystal with a central liquid-crystal defect layer placed between crossed polarizers has been studied. Transmittance was varied due to the magnetically induced reorientation of the nematic director from homeotropic to planar alignment. Two notable effects were observed for this scheme: the spectral shift of defect modes corresponding to the extraordinary light wave and its superposition with the ordinary one. As a result, the optical cell allows controlling the intensity of interfering defect modes by applied magnetic field. (C) 2010 Optical Society of America

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Держатели документа:
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660014, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Parshin, A. M.; Паршин, Александр Михайлович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Lee, Wei

    Inverse mode of ion-surfactant method of director reorientation inside nematic droplets
/ M. N. Krakhalev, O. O. Prishchepa, V. Y. Zyryanov // Mol. Cryst. Liquid Cryst. - 2009. - Vol. 512, Is. 1. - P. 1998-2003, DOI 10.1080/15421400903050814. - Cited Reference Count: 8. - Гранты: This work was partially supported by the grants Nos. NSh-3818.2008.3; 02.740.11.0220, and No. 08-03-01007 of RFBR, and Nos. 27.1; 110; 144 of SB RAS. M. Krakhalev acknowledges the financial support from K. I. Zamaraev MBN Foundation. O. Prishchepa acknowledges the financial support from Russian Science Support Foundation. - Финансирующая организация: RFBR [NSh-3818.2008.3, 02.740.11.0220, 08-03-01007]; SB RAS [27.1; 110; 144]; Zamaraev MBN Foundation; Russian Science Support Foundation . - ISSN 1542-1406

Кл.слова (ненормированные):
electrically commanded surfaces -- ion surfactant -- nematic -- polymer dispersed liquid crystals -- surface anchoring -- Electrically commanded surfaces -- Ion surfactant -- Nematic -- Polymer dispersed liquid crystals -- Surface anchoring -- Applied voltages -- Crossed polarizers -- Director fields -- Director reorientation -- Droplet structure -- Electrically commanded surfaces -- High concentration -- Homeotropic -- Initial state -- Ionic modification -- Liquid-crystal droplets -- Nematic droplets -- Nematic polymer -- Surface-active cations -- Surface-anchoring -- Trimethyl -- Ammonium compounds -- Cationic surfactants -- Crystals -- Drop formation -- Dyes -- Ionization of liquids -- Ions -- Liquid crystal displays -- Liquid crystals -- Liquids -- Nematic liquid crystals

Аннотация: Inverse mode of a novel electrooptical effect caused by the ionic modification of boundary conditions has been studied for liquid crystal droplets. We have considered the droplets of nematic 5CB doped with cationic surfactant cetyl-trimethyl-ammonium-bromide and dispersed in polyvinyl alcohol. In the initial state the surface anchoring was normal on the whole interface due to the high concentration of homeotropic surfactant. Applied voltage results in the purification of a section of the interface from the surface-active cations thereby restoring here a tangential anchoring and stimulating the significant transformation of droplet structure. At that three different types of director field distribution can be realized within the same droplet. The proper textures of the droplet both in the crossed polarizers and without analyzer are considered.

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Держатели документа:
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia
Siberian Fed Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич

    Light valve based on photonic-crystal/liquid-crystal cell between crossed polarizers
/ V. Ya. Zyryanov, V. A. Gunyakov [et al.] // Abstracts of the International Display Manufacturing Conference/3D Systems and Applications/Asia Display. - 2009. - P102



Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Wei, Lee; International Display Manufacturing Conference(2009 ; Apr. 27-30 ; Taipei, Taiwan); 3D Systems and Applications(2009 ; Apr. 27-30 ; Taipei, Taiwan); Asia Display(2009 ; Apr. 27-30 ; Taipei, Taiwan)

    Elongated films of polymer-dispersed liquid crystals as scattering polarizers
/ V. Ya. Zyryanov, S. L. Smorgon, V. F. Shabanov // Molecular Engineering. - 1992. - Vol. 1, N. 4. - P. 305-310

Аннотация: Elongated films of polymer dispersed liquid crystals have been experimentally investigated. The dependence of transmittance light polarization on elongation coefficient and temperature has been studied. The possibilities of practical applications of elongated films of polymer dispersed liquid crystals are discussed.

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

Доп.точки доступа:
Smorgon, S. L.; Сморгон, Сергей Леонидович; Shabanov, V. F.; Шабанов, Василий Филиппович; Зырянов, Виктор Яковлевич

    Electrically controllable optical switch based on one-dimensional photonic crystal
/ V. A. Gunyakov [et al.] // Proceedings of CAOL 2008: 4th International Conference on Advanced Optoelectronics and Lasers. - 2008. - 4th International Conference on Advanced Optoelectronics and Lasers, CAOL 2008 (29 September 2008 through 4 October 2008, Alushta, Crimea, ) Conference code: 74830. - P186-188, DOI 10.1109/CAOL.2008.4671886 . - ISBN 9781424419746 (ISBN)
Аннотация: Electrooptical switch within narrow spectral range has been demonstrated. The switch consisting of one-dimensional photonic crystal with a nematic liquid crystal defect layer was placed between two crossed polarizers. Principle of operation is based on the interference of the ordinary and extraordinary light waves passed across the device due to the electric-field induced coincidence of their wavelengths. © 2008 IEEE.

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Держатели документа:
L. V. Kirensky Institute of Physics, Krasnoyarsk Scientific Center, SB RAS
Siberian Federal University, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Shabanov, V. F.; Шабанов, Василий Филиппович; International Conference on Advanced Optoelectronics and Lasers(4th ; 2008 ; Apr. 29 Sep. - 04 Oct. ; Alushta, Crimea)