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Chen, C. H.
Switching of defect modes in a photonic structure with a tristable smectic-A liquid crystal / C. H. Chen, V. Ya. Zyryanov, W. Lee // Appl. Phys. Express. - 2012. - Vol. 5, Is. 8. - Ст. 82003, DOI 10.1143/APEX.5.082003. - Cited References: 13. - We acknowledge discussions with Po-Chang Wu and Aaron J. Archibald. This work was financially supported by the National Science Council of the Republic of China (Taiwan) through Grants Nos. NSC 98-2923-M-033-001-MY3 and NSC 98-2112-M-009-023-MY3 and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 43, 101 and 24.29, 24.32. . - ISSN 1882-0778

РУБ Physics, Applied
Рубрики:
LAYER
Аннотация: A one-dimensional (1D) photonic crystal (PC) optical device based on smectic-A (SmA) liquid crystal (LC) as a defect layer is proposed. The reversible tristability of the SmA LC is used to realize a low-energy-consumption device. With a voltage-induced scattering state, the PC-SmA hybrid cell can work as a polarizer-free optical switch. The variation of the effective refractive index of the LC substance enables the defect modes to appear at variable wavelengths, changing with the voltage-induced reorientation of the LC director. As a result, an electrically and thermally tunable multichannel optical device is achieved using this hybrid, optically tristable structure. (c) 2012 The Japan Society of Applied Physics

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Держатели документа:
[Chen, Chih-Heng
Lee, Wei] Chung Yuan Christian Univ, Dept Phys, Chungli, Taiwan
[Zyryanov, Victor Ya.] LV Kirenskii Inst Phys, Krasnoyarsk Sci Ctr, Siberian Branch, Russian Acad Sci, Krasnoyarsk 660036, Russia
[Lee, Wei] Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Natl Chiao Tung Univ, Coll Photon, Tainan 71150, Taiwan

Доп.точки доступа:
Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, W.
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Vetrov, S. Y.
Optical Tamm states at the interface between a photonic crystal and a nanocomposite with resonance dispersion / S. Y. Vetrov, R. G. Bikbaev, I. V. Timofeev // J. Exp. Theor. Phys. - 2013. - Vol. 117, Is. 6. - P. 988-998, DOI 10.1134/S1063776113140185. - Cited References: 28. - This work was supported 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"); by the Presidium of the Siberian Branch, Russian Academy of Sciences (project no. 24.29); by the Ministry of Education and Science of the Russian Federation (contract no. 14V37.21.0730); by the Division of Physical Sciences, Russian Academy of Sciences (project no. Sh.9.5); by the Presidium of the Russian Academy of Sciences (project nos. 24.29 and 24.31); and by the Siberian Branch, Russian Academy of Sciences (project nos. 43 and 101). . - ISSN 1063-7761. - ISSN 1090-6509

РУБ Physics, Multidisciplinary
Рубрики:
LIGHT
   TRANSMISSION
   MEDIA
   LAYER
Аннотация: Optical Tamm states localized at the edges of a photonic crystal bounded from one or both sides by a nanocomposite have been studied. The nanocomposite consists of metallic nanoinclusions, which have a spherical or orientationally ordered spheroidal shape and are dispersed in a transparent matrix, and is characterized by the resonant effective permittivity. The transmission, reflection, and absorption spectra have been calculated for waves with longitudinal and transverse polarizations in such structures at the normal incidence of light. The spectral manifestation of Tamm states that is due to the existence of negative values of the real part of the effective permittivity has been analyzed for the visible spectral range. It has been established that the characteristics of Tamm states localized at the edge of the photonic crystal depend strongly both on the concentration of nanoballs in the nanocomposite film and on its thickness. Modes formed by two coupled Tamm plasmon polaritons localized at the edges of the photonic crystal adjacent to two nanocomposite layers have been examined. It has been shown that, in the case of the anisotropic nanocomposite layer adjacent to the photonic crystal, each of two orthogonal polarizations of the incident wave corresponds to a specific frequency of the Tamm state localized at the edge; owing to this property, the transmission spectra of such a structure are polarization sensitive.

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Публикация на русском языке Ветров, Степан Яковлевич. Оптические таммовские состояния на границе фотонного кристалла и нанокомпозита c резонансной дисперсией [Текст] / С. Я. Ветров [и др.] // Журн. эксперимент. и теор. физ. - 2013. - Т. 144 Вып. 6. - С. 1129-1139

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

Доп.точки доступа:
Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ministry of Education and Science of the Russian Federation [14.V37.21.0730, 14V37.21.0730]; Presidium of the Siberian Branch, Russian Academy of Sciences [24.29]; Division of Physical Sciences, Russian Academy of Sciences [Sh.9.5]; Presidium of the Russian Academy of Sciences [24.29, 24.31]; Siberian Branch, Russian Academy of Sciences [43, 101]
}
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NMR studies of the magnetic state of interfacial cobalt in (Co/Ge)(n) films / G. S. Patrin [et al.] // J. Exp. Theor. Phys. - 2013. - Vol. 117, Is. 6. - P. 1097-1100, DOI 10.1134/S1063776113140033. - Cited References: 19. - We thank L. A. Li for the help in preparing the films and G. V. Bondarenko for the X-ray measurements. This work was supported by the Russian Foundation for Basic Research (project no. 11-02-00675-a). . - ISSN 1063-7761. - ISSN 1090-6509

РУБ Physics, Multidisciplinary
Рубрики:
SUPERLATTICES
   DEPENDENCE
   THICKNESS
   SPACER
   LAYER
Аннотация: The results of NMR studies of film structures in a cobalt-germanium system as a function of the cobalt layer thickness are presented. Two phases of cobalt, one is a face-centered cubic phase and the other is presumably a Co-Ge alloy with a weakly ferromagnetic order, have been found to exist. A "dead" layer no more than 2 nm in thickness is formed at the interface.

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Публикация на русском языке ЯМР-исследования магнитного состояния кобальта на границе раздела в пленках (Co/Ge)n. - [S. l. : s. n.]

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

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Maltsev, V. K.; Мальцев, Вадим Константинович; Krayukhin, I. N.; Краюхин, Иван Николаевич; Turpanov, I. A.; Турпанов, Игорь Александрович; Russian Foundation for Basic Research [11-02-00675-a]
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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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Tunable narrow-bandpass filter based on an asymmetric photonic bandgap structure with a dual-mode liquid crystal / H. T. Wang [et al.] // Opt. Express. - 2014. - Vol. 22, Is. 12. - P. 15097-15103, DOI 10.1364/OE.22.015097. - Cited References: 23. - This work was supported by the Ministry of Science and Technology of Taiwan through Grant No. NSC 101-2112-M-009-018-MY3 as well as Grant No. NSC 103-2923-M-009-003-MY3 dedicated to a joint project between Taiwan and Russia. Both I. V. Timofeev and V. Ya. Zyryanov would like to thank the Russian Foundation for Basic Research (project No. 14-02-3124814) and the Siberian Branch of the Russian Academy of Sciences (grants Nos. 43, 24.29 and 101). . - ISSN 1094-4087

РУБ Optics
Рубрики:
DEVICE
LAYER
CELL
Аннотация: A one-dimensional asymmetric photonic crystal with dual-frequency liquid crystal as a central defect layer was demonstrated. Such asymmetric structure was characterized by the dramatic increase in intensity of the electric field of light localized at the overlapped photonic bandgap edges, thereby enhancing the observed transmittance of the spectral windows originating from the defect layer. The defect layer was made of a dual-mode liquid crystal that exhibited not only electrical tunability and switchability but also optical bistability. Consequently, tunable and bistable defect modes can be realized in the photonic structure. This asymmetric photonic crystal structure is promising and should be further explored for photonic device applications. (C) 2014 Optical Society of America

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

Доп.точки доступа:
Wang, H. T.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Chang, K.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Lee, W.; Ministry of Science and Technology of Taiwan [NSC 101-2112-M-009-018-MY3, NSC 103-2923-M-009-003-MY3]; Russian Foundation for Basic Research [14-02-3124814]; Siberian Branch of the Russian Academy of Sciences [43, 24.29 and 101]
}
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Spin crossover and Mott-Hubbard transition under high pressure and high temperature in the low mantle of the Earth / S. G. Ovchinnikov [et al.] // J. Phys.: Conf. Ser. - 2015. - Vol. 653. - Ст. 012095, DOI 10.1088/1742-6596/653/1/012095. - Cited References:22 . - ISSN 1742-6588

РУБ Physics, Applied + Physics, Multidisciplinary
Рубрики:
PHASE-TRANSITION
   GEOMAGNETIC DATA
   MAGNESIOWUSTITE
   IRON
   METALLIZATION
   LAYER
Аннотация: Effect of high pressure induced spin crossover on the magnetic, electronic and structural properties of the minerals forming the Earth's low mantle is discussed. The low temperature P, T phase diagram of ferropericlase has the quantum phase transition point P = 56 GPa at T = 0 confirmed recently by the synchrotron Mossbauer spectroscopy. The LDA+GTB calculated phase diagram describes the experimental data. Its extension to the high temperature resulted earlier in prediction of the metallic properties of the Earth's mantle at the depth 1400 km h 1800 km. Estimation of the electrical conductivity based on the percolation theory is given. We discuss also the thermodynamic properties and structural anomalies resulting from the spin crossover and metal insulator transition and compare them with the experimental seismic and geomagnetic field data.

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Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Ovchinnikova, T. M.; Plotkin, V. V.; Dyad'kov, P. G.; International Conference on Interaction of Intense Energy Fluxes with Matter (XXX ; 1–6 March 2015 ; Elbrus, Kabardino-Balkaria, Russia); International conference on interaction of intense energy fluxes(30 ; 2015 ; March ; 01-06)
}
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Vetrov, S. Ya.
The optical Tamm states at the interface between a photonic crystal and a nanocomposite containing core-shell particles / S. Y. Vetrov, P. S. Pankin, I. V. Timofeev // J. Opt. - 2016. - Vol. 18, Is. 6. - Ст. 065106, DOI 10.1088/2040-8978/18/6/065106. - Cited References:23. - This study was supported by the Ministry of Education and Science of the Russian Federation, state order no. 3.1276.2014/K for the Siberian Federal University in 2016 and Scholarship of the President of the Russian Federation no. SP-227.2016.5. . - ISSN 2040-8978. - ISSN 2040-8986

РУБ Optics
Рубрики:
LAYER
Кл.слова (ненормированные):
photonic crystal -- nanocomposite -- optical Tamm state -- shelled -- nanoparticles -- effective permittivity
Аннотация: We investigate the optical Tamm states (OTSs) localized at the interface between a photonic crystal (PC) and a nanocomposite consisting of spherical nanoparticles with a dielectric core and a metallic shell, which are dispersed in a transparent matrix, and is characterized by the resonance permittivity. Spectra of transmission, reflection, and absorption of normally incident light waves by the investigated structure are calculated. The spectral manifestation of the Tamm states caused by negative values of the real part of the effective permittivity in the visible spectral range is studied. It is demonstrated that, along with the significantly extended band gap of the PC, the transmission spectrum contains an additional stopband caused by nanocomposite absorption near the resonance frequency. It is shown that the OTSs can be implemented in two band gaps of the PCs, each corresponding to a certain plasmon resonance frequency of the nanocomposite. It is established that the characteristics of the Tamm state localized at the edge of the PCs significantly depend on the ratio between the particle core volume and the total particle volume.

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

Доп.точки доступа:
Pankin, P. S.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Ministry of Education and Science of the Russian Federation; Russian Federation [SP-227.2016.5, 3.1276.2014/K]
}
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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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Size effects and magnetization of (Fe/Si)(n) multilayer film nanostructures / S. N. Varnakov [et al.] // Phys. Solid State. - 2007. - Vol. 49, Is. 8. - P. 1470-1475, DOI 10.1134/S1063783407080124. - Cited References: 36 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
GIANT MAGNETORESISTANCE
   FE/SI MULTILAYERS
   ULTRAHIGH-VACUUM
   SUPERLATTICES
   EXCHANGE
   RESONANCE
   LAYER
Аннотация: The temperature dependence of the magnetization of (Fe/Si) (n) multilayer films with nanometer layers is investigated. The films are prepared through thermal evaporation under ultrahigh vacuum onto Si(100) and Si(111) single-crystal substrates. It is revealed that the thickness of individual iron layers in (Fe/Si) (n) multilayer films affects the magnetization and its temperature dependence. The inference is made that this dependence is associated with the formation of a chemical interface at the Fe-Si boundaries. The characteristics of the chemical interface in the (Fe/Si) (n) films are estimated.

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Публикация на русском языке Размерные эффекты и намагниченность многослойных пленочных наноструктур (Fe/Si)[n] [Текст] / С. Н. Варнаков [и др.] // Физ. тверд. тела. - 2007. - Т. 49 Вып. 8. - С. 1401-1405

Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian Airospace Univ, Krasnoyarsk 660014, Russia
Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Zaragoza 50009, Spain
Univ Zaragoza, Inst Nanociencia Aragon, Zaragoza 50009, Spain
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok Krasnoyarsk 660036, Russian Federation
Siberian Airospace University, pr. im. gazety Krasnoyarskii R. 31, Krasnoyarsk 660014, Russian Federation
Instituto de Ciencia de Materiales de Aragon, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
Instituto de Nanociencia de Aragon, Universidad de Zaragoza, Zaragoza 50009, Spain

Доп.точки доступа:
Varnakov, S. N.; Варнаков, Сергей Николаевич; Bartolome, J.; Sese, J.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Parshin, A. S.; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Borovik-Romanova, O. \пер.\
}
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10.

Bulgakov, E. N.
Transfer of spin angular momentum of an incident wave into orbital angular momentum of the bound states in the continuum in an array of dielectric spheres / E. N. Bulgakov, A. F. Sadreev // Phys. Rev. A. - 2016. - Vol. 94, Is. 3. - Ст. 033856, DOI 10.1103/PhysRevA.94.033856. - Cited References:38. - The work was supported by the Russian Science Foundation through Grant No. 14-12-00266. We acknowledge discussions with D. N. Maksimov. . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
LIGHT
LAYER
Аннотация: We consider scattering of electromagnetic plane waves by a linear periodic array of dielectric spheres. For incident waves with circular polarization with frequency tuned to the bound states with orbital angular momentum in the radiation continuum, the spin angular momentum of the incident wave transfers into the orbital angular momentum. This, in turn, gives rise to giant vortical power currents rotating around the array. Incident wave with linear polarization with frequency tuned to the Bloch bound state in the continuum induces giant laminar power currents.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Russian Science Foundation [14-12-00266]
}
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11.

Experimental observation of a symmetry-protected bound state in the continuum in a chain of dielectric disks / Z. F. Sadrieva [et al.] // Phys. Rev. A. - 2019. - Vol. 99, Is. 5. - Ст. 053804, DOI 10.1103/PhysRevA.99.053804. - Cited References:61. - The numerical simulations and experimental part of this work were supported by the Russian Science Foundation (Grant No. 17-12-01581), and the analytical calculations were supported by RFBR (Grant No. 18-32-20205) and the Ministry of Education and Science of the Russian Federation (3.1668.2017/4.6). The authors are thankful to Andrey Sayanskiy for assistance in the holder fabrication. A.A.B. and Z.F.S. acknowledge the Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" for valuable financial support. . - ISSN 2469-9926. - ISSN 2469-9934

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
LIGHT
   RESONANCES
   RADIATION
   MOMENTUM
   BEHAVIOR
   LAYER
Аннотация: The existence of bound states in the continuum (BIC) manifests a general wave phenomenon first predicted in quantum mechanics by John von Neumann and Eugene Wigner [J. von Neumann and E. Wigner, Phys. Z. 30, 465 (1929)]. Today it is being actively explored in photonics, radiophysics, acoustics, and hydrodynamics. We report an experimental observation of an electromagnetic bound state in the radiation continuum in a one-dimensional array of dielectric particles. By measurement of the transmission spectra of the ceramic disk chain at GHz frequencies, we demonstrate how a resonant state in the vicinity of the center of the Brillouin zone turns into a symmetry-protected BIC with increase in the number of the disks. We estimate a number of the disks when the radiation losses become negligible in comparison to material absorption and, therefore, the chain could be considered practically as infinite. The presented analysis is supplemented by measurements of the near fields of the symmetry-protected BIC. All measurements are in a good agreement with the results of the numerical simulation and analytical model based on a tight-binding approximation. The obtained results provide useful guidelines for practical implementations of structures with bound states in the continuum that opens up horizons for the development of optical and radio-frequency metadevices.

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Держатели документа:
ITMO Univ, Dept Nanophoton & Metamat, St Petersburg 197101, Russia.
Ceram Co Ltd, Giricond Res Inst, St Petersburg 194223, Russia.
RAS, SB, KSC, Kirensky Inst Phys Fed Res Ctr, Krasnoyarsk 660036, Russia.
Ioffe Inst, St Petersburg 194021, Russia.

Доп.точки доступа:
Sadrieva, Z. F.; Belyakov, M. A.; Balezin, M. A.; Kapitanova, P. V.; Nenasheva, E. A.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Bogdanov, A. A.; Russian Science Foundation [17-12-01581]; RFBR [18-32-20205]; Ministry of Education and Science of the Russian Federation [3.1668.2017/4.6]; Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS"
}
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12.

    Anionic-cationic surfactant mixture providing the electrically controlled homeotropic surface anchoring of liquid crystals / M. N. Krakhalev [et al.] // J. Mol. Liq. - 2019. - Vol. 282: Suzdal Conference (2018, Suzdal, RUSSIA). - P. 57-62, DOI 10.1016/j.molliq.2019.02.132. - Cited References: 30. - The reported study was supported by the Belarusian Republican Foundation for Fundamental Research (project No X16P-110) and Russian Foundation for Basic Research (RFBR) (project No 16-53-00073). Mikhail N. Krakhalev and Vitaly S. Sutormin acknowledge financial support from RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (project No 18-42-243006). . - ISSN 0167-7322. - ISSN 1873-3166
   Перевод заглавия: Смесь анионного и катионного сурфактантов, обеспечивающая электроуправляемое гомеотропное поверхностное сцепление в жидких кристаллах

РУБ Chemistry, Physical + Physics, Atomic, Molecular & Chemical
Рубрики:
IONIC MODIFICATION
   TRANSITION
   DROPLETS
   CONFIGURATION
   LAYER
Кл.слова (ненормированные):
Polymer dispersed liquid crystal -- Nematic droplet -- Ionic surfactant -- Anchoring transition -- Director configuration -- Optical texture
Аннотация: In search of a substance able to function as an anionic surfactant applied for the electrically-induced anchoring transitions in liquid crystals, the compound 4-heptyloxybenzoate benzyl dodecyldimethylammonium (HOBBDDA) has been synthesized. Its orienting influence on nematic liquid crystal 4-pentyl-4'-cyanobiphenyl (5CB) has been tested. HOBBDDA dissolved up to 1.4%in 50 droplets dispersed in polymer film does not change the tangential surface anchoring inherent to polyvinyl alcohol matrix used. Homeotropic surface anchoring is realized if the HOBBDDA content exceeds 1.7%. The molecules of the surfactant in 5CB dissociate into anions and cations. The anions modify the surface anchoring under the action of DC electric field both in the normal and inverse mode. The mixture of HOBBDDA and cetyltrimethylammonium bromide can function as a binary ionic cationic surfactant which significantly expands the prospects for using the ionic-surfactant method to control liquid crystal materials. (C) 2019 Elsevier B.V. All rights reserved.

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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.
Belarusian State Technol Univ, Minsk 220006, BELARUS.

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Kuz'menok, N. M.; Mikhalyonok, S. G.; Bezborodov, V. S.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Belarusian Republican Foundation for Fundamental Research [X16P-110]; Russian Foundation for Basic Research (RFBR) [16-53-00073]; RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-42-243006]; International conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications - 2018(XIII ; August 6-12, 2018 ; Suzdal - Moscow, Russia)
}
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13.

    Паршин, Александр Михайлович.
    Проявление интерференции в электрооптическом отклике нематика в доменной структуре на поверхности поликарбоната / А. М. Паршин, А. В. Баранник // Жидк. крист. и их практич. использ. - 2019. - Т. 19, № 1. - С. 62-69 ; Liq. Cryst. Appl., DOI 10.18083/LCAppl.2019.1.62. - Библиогр.: 20. - Работа выполнена при частичном финансировании по интеграционному проекту № 356-2018-0058 СО РАН. . - ISSN 1991-3966. - ISSN 2499-–964
   Перевод заглавия: Interference phenomenon in electro-optic response of nematic in domain structure on polycarbonate surface

РУБ Crystallography
Рубрики:
FRIEDERICKSZ THRESHOLD
LAYER
FILM
Кл.слова (ненормированные):
нематический жидкий кристалл -- поликарбонат -- интерференция света -- рассеяние света -- электрическое поле -- nematic liquid crystal -- polycarbonate -- light interference -- light scattering -- electric field
Аннотация: Исследованы интерференционные изменения интенсивности неполяризованного света, распространяющегося через ансамбль жидкокристаллических доменов, сформированных на поверхности поликарбоната. Расчетными методами получены выражения для интенсивности света и фазовой задержки между обыкновенными и необыкновенными лучами с учетом изменения ориентации директора нематика под действием электрического поля. Представлены экспериментальные зависимости интенсивности света от напряжения, согласующиеся с расчетными. Изучено рассеяние света при его распространении через формирующиеся в процессе роста домены. Показано, что интерференционные изменения интенсивности при варьировании напряжения обусловливаются суперпозицией необыкновенных и обыкновенных лучей, проходящих через домены.
Interference variations of the intensity of the unpolarized light propagating through the ensemble of liquid crystal domains formed on the polycarbonate surface were investigated. By calculation methods, the expressions for the light intensity and the phase delay between ordinary and extraordinary rays were obtained taking into account the change of the nematic director orientation under the action of the electric field. Experimental dependences of the light intensity on voltage are consistent with the calculated ones. The scattering of light during its propagation through the growing domains was studied. It is shown that the interference intensity changes at varying voltage are caused by the superposition of extraordinary and ordinary rays passing through the domains.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, 50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Баранник, Алексей Владимирович; Barannik, A. V.; Parshin, A. M.

}
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14.

Interference of nonpolarized light in liquid crystal domains on a polymer surface / A. M. Parshin [et al.] // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P. 1845-1849, DOI 10.1364/JOSAB.36.001845. - Cited References: 23 . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
FRIEDERICKSZ THRESHOLD
   FIELD
   LAYER
   FILM
Аннотация: The interference of nonpolarized light transmitted through an ensemble of nematic liquid crystal domains formed on a polycarbonate surface has been investigated. A model based on the superposition of the ordinary and extraordinary beams passing through domains with a radial structure has been developed. Expressions for the phase difference and intensity of the interfering beams have been derived that take into account the distribution of the liquid crystal director field. The dependences of the optical transmittance of a domain layer on the applied voltage have been calculated with regard to the material and optical constants of a liquid crystal and structural features and averaged morphological parameters of individual domains in the experimental sample. The results of the calculation are consistent with the experimental data, which confirms the validity of the proposed model. (C) 2019 Optical Society of America

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

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Barannik, A. V.; Баранник, Алексей Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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15.

Experimental implementation of tunable hybrid Tamm-microcavity modes / P. S. Pankin, V. S. Sutormin, V. A. Gunyakov [et al.] // Appl. Phys. Lett. - 2021. - Vol. 119, Is. 16. - Ст. 161107, DOI 10.1063/5.0067179. - Cited References: 60. - The authors are grateful to M. N. Krakhalev for helpful discussions. Electrical control of hybrid modes 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. Temperature control of hybrid modes was funded by Russian Foundation for Basic Research, Project No. 19-52-52006 and No. MOST 108-2923-E-009-003-MY3, Taiwan. P. S. Pankin is grateful for the support of the President of the Russian Federation under Grant No. MK-4012.2021.1.2. This study was supported by the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center KSC SB RAS . - ISSN 0003-6951. - ISSN 1077-3118

РУБ Physics, Applied
Рубрики:
STATES
CRYSTALS
LAYER
Аннотация: Mode hybridization is a unique way to manipulate the mode inside a fixed cavity or at interface. For example, Tamm plasmon-polariton at solid interface can be spectrally shifted without tuning the interface. Experimental implementation of tunable hybrid Tamm-microcavity modes is reported. The hybrid modes are excited in a one-dimensional photonic crystal bounded with a gold layer by attaching a nematic liquid crystal microcavity. Coupling between Tamm plasmon-polariton and microcavity modes leads to repulsion of their dispersion curves controlled by the refractive index of a liquid crystal and the polarization of incident light. Effective tuning of hybrid modes through heating or applying an external electric field to the liquid crystal layer is demonstrated. The experimentally measured strength coupling value between Tamm and microcavity modes was 20.7 meV.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
AO NPP Radiosvyaz, Krasnoyarsk 660021, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Natl Yang Ming Chiao Tung Univ, Tainan 71150, Taiwan.

Доп.точки доступа:
Pankin, P. S.; Панкин, Павел Сергеевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zelenov, F. V.; Tambasov, I. A.; Тамбасов, Игорь Анатольевич; Masyugin, A. N.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Baron, F. A.; Барон, Филипп Алексеевич; Chen, K. P.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Territory; Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic Research, TaiwanRussian Foundation for Basic Research (RFBR) [19-52-52006, MOST 108-2923-E-009-003-MY3]; Russian FederationRussian Federation [MK-4012.2021.1.2]; Krasnoyarsk Regional Center of Research Equipment of Federal Research Center KSC SB RAS
}
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