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    Angular tuning of defect modes spectrum in the one-dimensional photonic crystal with liquid-crystal layer / V. G. Arkhipkin [et al.] // Eur. Phys. J. E. - 2007. - Vol. 24, Is. 3. - P297-302, DOI 10.1140/epje/i2007-10239-7. - Cited Reference Count: 28 . - NOV. - ISSN 1292-8941
Рубрики:
PERIODIC STRUCTURE
   REFRACTIVE-INDEX
   ENHANCEMENT
   LIGHT
   LASER
Кл.слова (ненормированные):
42.25.Bs Wave propagation, transmission and absorption -- 42.70.Df Liquid crystals -- 42.70.Qs Photonic bandgap materials -- Angles of incidence -- Angular tuning -- Defect modes -- Electric polarization -- Photonic bandgap materials -- Radiation losses -- Absorption -- Defects -- Light polarization -- Liquid crystals -- One dimensional -- Phase shift -- Wave propagation -- Photonic crystals
Аннотация: A one-dimensional ZrO2/SiO2 photonic crystal with a 4-n -pentyl-4'-cyanobiphenyl (5CB) nematic defect layer was used to investigate the transmission spectra of light polarized parallel and perpendicular to the liquid-crystal director at different angles of incidence. The spectra of the photonic crystal were shown to split into four polarized components T-ij at oblique incidence. When the incident angle increased, the bandgap edges and the defect modes shifted towards short wavelengths, while the amplitudes of the defect modes increased for the transverse magnetic polarization and decreased for the transverse electric polarization. The observed discrepancy between the defect mode amplitudes in the center and near the edges of the photonic bandgap was found to be related to the radiation losses inside the defect layer of a non-ideal photonic crystal. The simulated transmission spectra obtained using recurrence relations and taking into account the decay of defect modes are in good agreement with the experimental data.

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Держатели документа:
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
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    Anomalous spectral shift of o-modes in multilayer photonic structure induced by homeotropic–homeoplanar transition in chiral–nematic defect layer / V. A. Gunyakov, V. S. Sutormin, I. V. Timofeev [et al.] // Photonics. - 2023. - Vol. 10, Is. 9. - Ст. 959, DOI 10.3390/photonics10090959. - Cited References: 39 . - ISSN 2304-6732
   Перевод заглавия: Аномальный спектральный сдвиг о-мод в мультислойной фотонной структуре индуцированный переходом от гомеотропной к гомеопланарной конфигурации в хиральном нематическом дефектном слое
Кл.слова (ненормированные):
liquid crystal -- hybrid aligned cholesteric -- ionic surfactant -- multilayer photonic structure -- geometric phase
Аннотация: A chiral nematic is embedded between multilayer mirrors to obtain voltage-inducible polarized resonance spectra. Initially, the nematic director is uniformly oriented perpendicular to the mirrors’ surfaces because the chiral nematic helix is completely untwisted due to the homeotropic boundary conditions specified by the adsorbed cations. Then, a voltage is applied to remove the layer of surface-active cations from the input mirror. The obtained twisted homeoplanar configuration has a helix pitch exceeding the layer’s thickness. The twisting leads to the anomalous blue shift of the o-modes in the transmittance spectrum of the photonic structure. This blue shift can be effectively compensated by repulsion of spectral peaks as a result of mode coupling in the vicinity of the virtual avoided crossing point. The experimental results obtained are confirmed numerically using the 4 ˣ 4 transfer matrix method and explained with the contribution of a geometric phase.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Shabanov, V. F.; Шабанов, Василий Филиппович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
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    Asymmetric resonant light absorption in a chloroplast microstructure / P. S. Pankin, A. V. Shabanov, D. N. Maksimov [et al.] // J. Opt. Soc. Am. B. - 2023. - Vol. 40, Is. 1. - P. 87-93, DOI 10.1364/JOSAB.477110. - Cited References: 45 . - ISSN 0740-3224. - ISSN 1520-8540
   Перевод заглавия: Асимметричное резонансное поглощение света в микроструктуре хлоропласта
Аннотация: It is shown that in the chloroplast periodic structure with a defect, the resonant absorption of light can be implemented. It is found that the resonant light absorption depends significantly on the position of a defect. In terms of the absorption of light energy, an asymmetric resonator is more efficient than a symmetric one.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russia
AO NPP Radiosvyaz, Krasnoyarsk, 660021, Russia
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Pankin, P. S.; Панкин, Павел Сергеевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Nabol, S. V.; Наболь, Степан Васильевич; Buzin, D. S.; Бузин, Даниил Сергеевич; Krasnov, A. I.; Краснов, Алексей Ильдарович; Romanenko, G. A.; Романенко, Гавриил Александрович; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zelenov, Fyodor V.; Masyugin, Albert N.; Vyatkin, Vladimir P.; Nemtsev, I. V.; Немцев, Иван Васильевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович
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Averyanov, E. M.
New features in the structural relaxation of a nematic liquid-crystal doped with luminescent impurity molecules / E. M. Averyanov, V. A. Gunyakov // JETP Letters. - 1993. - Vol. 57, Is. 8. - P. 492-496. - Cited References: 15 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
FLUORESCENCE DEPOLARIZATION
ORIENTATIONAL RELAXATION
FLUOROPHORES
Аннотация: A new approach is proposed for interpreting the polarized fluorescence spectra of an impure liquid crystal in which the orientational order of excited impurity molecules has undergone relaxation. This approach has also been realized experimentally. The new experimental data demonstrate a new relaxation process with a time scale on the order of 10(-11)-10(-9) s.

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Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Аверьянов, Евгений МихайловичAver'yanov
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Averyanov, E. M.
Spectral position control of dye absorption band maximum in an orienting matrix / E. M. Averyanov, V. A. Gunyakov // Molecular Engineering. - 1992. - Vol. 1, N. 4. - P. 311-316
Аннотация: The continuous control of the maximum position να of the dye absorption band (the zero of the derivative dD α(ν)/dν of the cell's optical density D α(ν)) in a nematic matrix is demonstrated experimentally, as a result of changing the angle α between the optical axis of a planar-oriented sample and the plane of polarization of absorbed light incident normal to the optical axis. The theory proposed describes quantitatively the experimental dependence ν(α). The rotation of the polarizer with given frequency ω results in the spectral position modulation of the solute band maximum ν(ω) within ν(α=0°)−ν(90°)=700 cm−1.

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

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Аверьянов, Евгений МихайловичAver'yanov
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Bisector effect in a twisted-nematic Fabry–Pйrot cavity / V. A. Gunyakov [et al.] // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. O61. - P. 10. - Библиогр.: 3

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Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Lee, W.; Zyryanov, V. Ya.; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
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Control of transmission spectra of planar photonic crystal with LC defect / V. A. Gunyakov [et al.] // Proceedings of SPIE - The International Society for Optical Engineering / sponsors: SPIE Russia Chapter, P.N. Lebedev Physical Institute, Russia, Russian Foundation of Basic Research, Society for Information Display, Russia, European Office of Aerospace Research and Development ; XV International Symposium on Advanced Display Technologies (2006 ; 03.10 - 05.10 ; Moscow). - 2007. - 6637. - С. 66370L, DOI 10.1117/12.742890 . - ISBN 0819467847

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Держатели документа:
Institute of Semiconductor Physics
Krasnoyarsk State Technical University
L.V. Kirensky Institute of Physics

Доп.точки доступа:
sponsors: SPIE Russia Chapter, P.N. Lebedev Physical Institute, Russia, Russian Foundation of Basic Research, Society for Information Display, Russia, European Office of Aerospace Research and Development; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Gerasimov, V. P.; Герасимов Виктор Петрович; Arkhipkin, V. G.; Архипкин Василий Григорьевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Shabanov, A. V.; Шабанов, Александр Васильевич; Vetrov, S. Y.; Kamaev, G. N.; XV International Symposium on Advanced Display Technologies(2006 ; 03.10 - 05.10 ; Moscow)
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Defect modes control in photonic structure based on electro-hydrodynamic effect in nematic LC / V. A. Gunyakov [et al.] // The 2nd Asian Conf. on Liq. Cryst. (ACLC 2015) : abstr. book. - 2015. - Ст. PB-20. - P. 149

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Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Wu, Pochang; Lee, Wei; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Asian Conference on Liquid Crystals(2 ; 2015 ; Jan. 19-21 ; Busan, Korea)
}
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Defect modes in real photonic crystals / V. G. Arkhipkin [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. - P183-185, DOI 10.1109/CAOL.2008.4671857 . - ISBN 9781424419746 (ISBN)
Кл.слова (ненормированные):
Detect mode -- Liquid crystal -- Photonic band gap -- Photonic crystal -- Defect modes -- Detect mode -- Number of layers -- Photonic crystal structures -- Crystal atomic structure -- Crystal structure -- Defects -- Energy gap -- Gallium alloys -- Light sources -- Liquid crystals -- Liquid lasers -- Optical devices -- Photonic band gap -- Silicon on insulator technology -- Photonic crystals
Аннотация: It is demonstrated experimentally that amplitudes of defect modes of one-dimensional photonic crystal have maximal value near edges of the photonic band gap while at the centre of the stop-band they are reduced, moreover than more number of layers in photonic crystal, the less the amplitude of defect mode at the center of the PBG. We explain such behavior of defect modes presence of losses at propagation of light in real photonic crystal structures. © 2008 IEEE.

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Держатели документа:
L.V. Kirensky Institute of Physics, Krasnoyarsk Scientific Center, SB RAS
Siberian Federal University, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; International Conference on Advanced Optoelectronics and Lasers(4th ; 2008 ; Apr. 29 Sep. - 04 Oct. ; Alushta, Crimea)
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10.

Determination of anchoring energy for nematic onto ferroelectric substrate / V. A. Gunyakov [et al.] // Solid State Commun. - 1993. - Vol. 87, Is. 9. - P. 751-753, DOI 10.1016/0038-1098(93)90406-D. - Cited References: 8 . - ISSN 0038-1098

РУБ Physics, Condensed Matter
Рубрики:
LIQUID-CRYSTALS
SURFACE
Аннотация: A technique to determine anchoring energy of planar MBBA layer with cleavage surfaces of triglycine sulphate is presented. The method is based on guest-host phenomenon in impure nematic. The anchoring energy W = (1.0 +/- 0.3).10(-4) erg/cm2 is calculated within Rapini-Papoular approximation.

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Держатели документа:
L.V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, 660036 Krasnoyarsk, Russian Federation
ИФ СО РАН

Доп.точки доступа:
Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Parshin, A. M.; Паршин, Александр Михайлович; Khrustalev, B. P.; Хрусталев, Борис Петрович; Shabanov, V. F.; Шабанов, Василий Филиппович
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