Труды сотрудников института физики

/ 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 1090-6509РУБ Physics, Multidisciplinary

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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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]

/ S. Y. Vetrov [et al.] // Opt. Spectrosc. - 2012. - Vol. 113, Is. 5. - P. 517-521, DOI 10.1134/S0030400X12110070. - Cited References: 14. - The work was supported by the grants NSh-7810.2010.3, RNP.2.1.1.3455, no. 27.1 and no. 3.9.1 RAS, no. 5 and no. 144 SO RAS, and g/k 02.740.11.0220 of the federal targeted program "Scientific and Pedagogical Personnel of Innovative Russia." . - ISSN 0030-400XРУБ Optics + Spectroscopy

Аннотация: Spectral properties of a 1D photonic crystal that is comprised of two multilayered dielectric mirrors and a nanocomposite layer between them as a structural defect are studied. The nanocomposite consists of silver nanoballs dispersed in a transparent matrix and is characterized by an effective resonant permittivity. The spectral manifestation of the defect mode splitting for the s-polarized waves is studied as a function of the angle of incidence and concentration of nanoballs. Specific features of the transmission spectra for the s- and p-polarized waves are established for the angle of incidence equal to the Brewster angle of the seeding photonic crystal. It is shown, in particular, that, in the region of the continuous transmission spectrum of the spolarized waves, there arises an additional bandgap caused by mixing of the resonant mode with photonic modes.

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Держатели документа:
[Vetrov, S. Ya.
Avdeeva, A. Yu.
Bikbaev, R. G.
Timofeev, I. V.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Vetrov, S. Ya.
Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vetrov, S.Ya.; Ветров, Степан Яковлевич; Avdeeva, A. Y.; Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович

/ R. G. Bikbaev, S. Ya. Vetrov, I. V. Timofeev // J. Opt. - 2017. - Vol. 19, Is. 1. - Ст. 015104, DOI 10.1088/2040-8986/19/1/015104. - Cited References: 38. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project № 16-42-243065, SB RAS No. II.2P (0358-2015-0010), the Ministry of Education and Science of the Russian Federation, projects no. 3.1276.2014/K and no. 3.1211.2017/PCH. I.V.T. acknowledges financial support from RFBR research project № 15-02-03838. . - ISSN 2040-8978
Аннотация: The optical Tamm states (OTSs) localized at the edges of a photonic crystal bounded by a nanoporous silver (NPS) film are investigated. NPS involves spherical vacuum nanopores dispersed in the metal matrix and is characterized by the effective resonance permittivity. The transmission, reflection, and absorption spectra of the structures under study at the normal incidence of light are calculated. It is shown that each Tamm state has its own frequency range where the real part of effective permittivity is negative. The light field localization at the high- and low-frequency OTSs is investigated. The specific features of spectral manifestation of the OTSs are studied in dependence on the nanopore concentration in the metal matrix and on the NPS film thickness.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center, KSC, SB RAS, Russian Federation

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович

/ S. Y. Vetrov, R. G. Bikbaev, I. V. Timofeev // Opt. Commun. - 2017. - Vol. 395. - P. 275-281, DOI 10.1016/j.optcom.2016.08.075. - Cited References:34. - This work was supported by the Ministry of Education and Science of the Russian Federation, project no. 3.1276.2014/K. . - ISSN 0030-4018. - ISSN 1873-0310РУБ Optics

Аннотация: The optical Tamm states localized at the edges of a photonic crystal bounded by a nanocomposite on its one or both sides are investigated. The nanocomposite consists of metal nanoinclusions with an orientation-ordered spheroidal shape, which are dispersed in a transparent matrix, and is characterized by the effective resonance permittivity. The spectrum of transmission of the longitudinally and transversely polarized waves by such structures at the normal incidence of light was 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 was studied. Features of the spectral manifestation of the optical Tamm states for different degrees of extension of spheroidal nanoparticles and different periods of a photonic crystal were investigated. It is demonstrated that splitting of the frequency due to elimination of degeneracy of the Tamm states localized at the interfaces between the photonic crystal and nanocomposite strongly depends on the volume fraction of the spheroids in the nanocomposite and on the ratio between the polar and equatorial semiaxes of the spheroid. Each of the two orthogonal polarizations of the incident wave has its own dependence of splitting on the nanoparticle density, which makes the transmission spectra polarization-sensitive. It is shown that the Tamm state is affected by the size-dependent permittivity of anisotropic nanoparticles. (C) 2016 Elsevier B.V. All rights reserved.

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

Доп.точки доступа:
Bikbaev, R. G.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; Ministry of Education and Science of the Russian Federation [3.1276.2014/K]

/ S. Y. Vetrov [et al.] // J. Opt. - 2017. - Vol. 19, Is. 8. - Ст. 085103, DOI 10.1088/2040-8986/aa75fb. - Cited References:38. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No 17-42-240464. R G B acknowledges financial support from Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No 16-42-243065. . - ISSN 2040-8978. - ISSN 2040-8986РУБ Optics

Аннотация: The spectral properties of a one-dimensional photonic crystal bounded with a resonance-absorbing nanocomposite layer are investigated. The bulk concentrations of metal nanoparticles dispersed in a transparent nanocomposite matrix are determined at which the effective permittivity takes near-zero values. The transmission, reflection and absorption spectra of the investigated structures at the normal incidence of light are calculated. The demonstrated possibility of formation of the optical Tamm states at the interface between the photonic crystal and nanocomposite is ensured by the near-zero real and imaginary parts of the permittivity or only the imaginary part of the permittivity at the zero real part. The specific features of field localization at the optical Tamm state frequencies are examined.

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Держатели документа:
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Natl Chiao Tung Univ, Inst Imaging & Biomed Photon, 301 Gaofa 3rd Rd, Tainan 711, Taiwan.
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Bikbaev, R. G.; Rudakova, Natalya V.; Chen, Kuo-Ping; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [17-42-240464, 16-42-243065]

/ R. G. Bikbaev, S. Y. Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2017. - Vol. 34, Is. 10. - P. 2198-2202, DOI 10.1364/JOSAB.34.002198. - Cited References:40. - Russian Foundation for Basic Research (RFBR), Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (16-42-243065, 17-42-240464). . - ISSN 0740-3224. - ISSN 1520-8540РУБ Optics

Аннотация: The spectral properties of a one-dimensional photonic crystal bounded by an absorbing plasmonic gyroid layer are investigated. The gyroid material is a foam-like metallic three-dimensionally periodic curved film with zero mean curvature at every point. We calculate the transmittance and reflectance spectra at the normal and oblique light incidence. The possibility of the Tamm state formation at the interface between a photonic crystal and a plasmonic gyroid layer caused by the negative real part of the gyroid permittivity is demonstrated for the first time. Specific features of field localization at the Tamm state frequencies are discussed. It is shown that the spectral and polarization properties of the optical Tamm states are highly sensitive to the change in the angle of incidence and in the refractive index of a medium filling the gyroid cavities.

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

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Бикбаев, Рашид Гельмединович; Russian Foundation for Basic Research (RFBR), Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [16-42-243065, 17-42-240464]

/ N. V. Rudakova [et al.] // Abstracts of 27th International Liquid Crystal Conference (ILCC 2018). - 2018. - Ст. 4-D-12. - Cited References: 3

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Доп.точки доступа:
Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Lee, W.; International Liquid Crystal Conference(27 ; 2018 ; July ; 22-27 ; Kyoto, Japan)

/ S. E. Svyakhovskiy [et al.] // International Conference Laser Optics (ICLO 2018) : Proceedings. - 2018. - Ст. 8435505. - P. 309, DOI 10.1109/LO.2018.8435505. - Cited References: 3. - This paper is supported by Russian Foundation for Basic Research (16-02-01100), Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund (16-42-243065). . - ISBN 978-1-5386-3612-1
Аннотация: We present the theoretical and experimental investigations of optical bound state at the interface of photonic crystal and metal film. The reflectance of the wide-gap photonic crystal can be suppressed by absorption in broadband spectral range.

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Доп.точки доступа:
Svyakhovskiy, S. E.; Bikbaev, R. G.; Myslivets, S. A.; Мысливец, Сергей Александрович; Evlashin, S. A.; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Pankin, P. S.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; International Conference on Laser Optics(2018 ; St. Petersburg)(June 4-8 2018)

/ R. G. Bikbaev, S. Y. Vetrov, I. V. Timofeev // Photonics. - 2018. - Vol. 5, Is. 3. - Ст. 22, DOI 10.3390/photonics5030022. - Cited References: 53 . - ISSN 2304-6732
Аннотация: The spectral properties of a one-dimensional photonic crystal bounded by a resonant absorbing nanocomposite layer with the near-zero permittivity have been studied. The problem of calculating the transmittance, reflectance, and absorptance spectra of such structures at the normal and oblique incidence of light has been solved. It is shown that, depending on the permittivity sign near zero, the nanocomposite is characterized by either metallic or dielectric properties. The possibility of simultaneous formation of the Tamm plasmon polariton at the photonic crystal/metallic nanocomposite interface and the localized state similar to the defect mode with the field intensity maximum inside the dielectric nanocomposite layer is demonstrated. Specific features of field localization at the Tamm plasmon polariton and defect mode frequencies are analyzed. © 2018 by the authors.

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

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович

/ V. S. Gerasimov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2019. - Vol. 224. - P. 303-308, DOI 10.1016/j.jqsrt.2018.11.028. - Cited References: 49. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); by the RF Ministry of Science and Higher Education, the State contract with Siberian Federal University for scientific research in 2017–2019 (Grant No.3.8896.2017); by the Russian Science Foundation (Project No. 18-13-00363 ) (numerical calculations of Rayleigh anomalies in planar structures and corresponding research). . - ISSN 0022-4073
   Перевод заглавия: Управляемая гибридизация мод двумерной решетки внедренной в одномерный фотонный кристалл
Аннотация: We analytically and numerically study coupling mechanisms between 1D photonic crystal (PhC) and 2D array of plasmonic nanoparticles (NPs) embedded in its defect layer. We introduce general formalism to explain and predict the emergence of PhC-mediated Wood–Rayleigh anomalies, which spectral positions agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method. Electromagnetic coupling between localized surface plasmon resonance (LSPR) and PhC-mediated Wood–Rayleigh anomalies makes it possible to efficiently tailor PhC modes. The understanding of coupling mechanisms in such hybrid system paves a way for optimal design of sensors, light absorbers, modulators and other types of modern photonic devices with controllable optical properties.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Siberian Research Clinical Centre under FMBA of Russia, Krasnoyarsk, 660037, Russian Federation
Polytechnic Institute, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
The Institute of Optics, University of Rochester, Rochester, NY 14627, United States
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Bikbaev, R. G.; Rasskazov, I. L.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич

/ R. G. Bikbaev [et al.] // The 4th Asian Conference on Liquid Crystals (ACLC 2019) : abstracts. - 2019. - Ст. P-26. - P. 102. - Библиогр.: 4

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Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Asian Conference on Liquid Crystals(4 ; 2019 ; Jan. 17-18 ; Shenzhen, China)

/ А. А. Ершов [и др.] // XXII конф. мол. ученых ФИЦ КНЦ СО РАН : сборник тезисов. - Красноярск, 2019. - С. 17. - Библиогр.: 3

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

Доп.точки доступа:
Ершов, Александр Евгеньевич; Ershov, A. E.; Бикбаев, Рашид Гельмединович; Bikbaev, R. G.; Герасимов, Валерий Сергеевич; Gerasimov V. S.; Рассказов, Илья Леонидович; Rasskazov, I. L.; Конференция молодых ученых ФИЦ КНЦ СО РАН(22 ; 2019 ; апр. ; 18 ; Красноярск)

/ R. G. Bikbaev, S. Y. Vetrov, I. V. Timofeev // Photonics. - 2019. - Vol. 6, Is. 1. - Ст. 28, DOI 10.3390/photonics6010028. - Cited References: 45. - This research was funded by RFBR according to the research project No. 18-32-00053. I.V.T. and S.Y.V. acknowledge financial support from RFBR and MOST according to the research project No. 19-52-52006. . - ISSN 2304-6732РУБ Optics

Аннотация: Two schemes of excitation of a Tamm plasmon polariton localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity have been investigated in the framework of the temporal coupled-mode theory. The parameters of the structure have been determined, which correspond to the critical coupling of the incident field with a Tamm plasmon polariton and, consequently, ensure the total absorption of the incident radiation by the structure. It has been established that the spectral width of the absorption line depends on the scheme of Tamm plasmon polariton excitation and the parameters of a nanocomposite film. The features of field localization at the Tamm plasmon polariton frequency for different excitation schemes have been examined. It has been demonstrated that such media can be used as narrowband absorbers based on Tamm plasmon polaritons localized at the interface between a photonic crystal and a nanocomposite with near-zero effective permittivity.

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

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Бикбаев, Рашид Гельмединович; RFBR; MOST [19-52-52006]

/ Р. Г. Бикбаев, С. Я. Ветров, И. В. Тимофеев // Сборник трудов XVII Всероссийской школы-семинара «Физика и применение микроволн» имени профессора А.П. Сухорукова (Волны-2019). - 2019. - Секция: Метаматериалы и фотонные кристаллы. - С. 14-16. - Библиогр.: 5 . - ISBN 978-5-600-02483-0
Аннотация: Продемонстрирована возможность использования прозрачных проводящих оксидов с близкой к нулю диэлектрической проницаемостью для формирования таммовских плазмон-поляритонов и управления их спектральными свойствами.

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

Доп.точки доступа:
Ветров, Степан Яковлевич; Vetrov, S. Ya.; Тимофеев, Иван Владимирович; Timofeev, I. V.; Bikbaev, R. G.; Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований; "Физика и применение микроволн", Всероссийская школа-семинар имени А.П. Сухорукова(17 ; 2019 ; май ; 26-31 ; Можайск, Моск. обл.); Волны-2019. Всероссийская школа-семинар "Физика и применение микроволн" имени А.П. Сухорукова(17 ; 2019; май ; 26-31 ; Можайск, Московская обл.)

/ Р. Г. Бикбаев, С. Я. Ветров, И. В. Тимофеев // Сборник трудов XVII Всероссийской школы-семинара «Физика и применение микроволн» имени профессора А.П. Сухорукова (Волны-2019). - 2019. - Секция: Метаматериалы и фотонные кристаллы. - С. 11-13. - Библиогр.: 4 . - ISBN 978-5-600-02483-0
Аннотация: Продемонстрирована возможность создания узкополосных поглотителей на основе таммовских плазмон-поляритонов, локализованных на границе фотонного кристалла и нанокомпозита с близкой к нулю диэлектрической проницаемостью.

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

Доп.точки доступа:
Ветров, Степан Яковлевич; Vetrov, S. Ya.; Тимофеев, Иван Владимирович; Timofeev, I. V.; Bikbaev, R. G.; Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований; "Физика и применение микроволн", Всероссийская школа-семинар имени А.П. Сухорукова(17 ; 2019 ; май ; 26-31 ; Можайск, Моск. обл.); Волны-2019. Всероссийская школа-семинар "Физика и применение микроволн" имени А.П. Сухорукова(17 ; 2019; май ; 26-31 ; Можайск, Московская обл.)

/ N. V. Rudakova [et al.] // The 4th Asian Conference on Liquid Crystals (ACLC 2019) : abstracts. - 2019. - P. . - Библиогр.: 4

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Доп.точки доступа:
Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Chen, K.-P.; Lee, W.; Asian Conference on Liquid Crystals(4 ; 2019 ; Jan. 17-18 ; Shenzhen, China)

/ M. N. Krakhalev [et al.] // Crystals. - 2019. - Vol. 9, Is. 5. - Ст. 249, DOI 10.3390/cryst9050249. - Cited References: 43. - This work was supported by the Russian Science Foundation (No. 18-72-10036). . - ISSN 2073-4352
   Перевод заглавия: Структуры нематика и холестерика в ячейках с тангенциально-коническими граничными условиямиРУБ Crystallography + Materials Science, Multidisciplinary

Аннотация: Orientational structures formed in nematic and cholesteric layers with tangential-conical boundary conditions have been investigated. LC cells with one substrate specifying the conical surface anchoring and another substrate specifying the tangential one have been considered. The director configurations and topological defects have been identified analyzing the texture patterns obtained by polarizing microscope in comparison with the structures and optical textures calculated by free energy minimization procedure of director field and finite-difference time-domain method, respectively. The domains, periodic structures and two-dimensional defects proper to the LC cells with tangential-conical anchoring have been studied depending on the layer thickness and cholesteric pitch.

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

Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Russian Science Foundation [18-72-10036]

/ A. M. Vyunishev [et al.] // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 8. - P. 2299-2305, DOI 10.1364/JOSAB.36.002299. - Cited References: 50. - Russian Foundation for Basic Research (RFBR) (18-32-00053); Grant of the President of the Russian Federation (MK-2761.2019.2). . - ISSN 0740-3224. - ISSN 1520-8540
   Перевод заглавия: Широкополосный таммовский плазмон-поляритонРУБ Optics

Аннотация: A broadband Tamm plasmon polariton localized at the interface between the Bragg mirror and a thin metallic layer has been theoretically and experimentally investigated. The possibility of a localized state formation has been demonstrated and energy coefficients at the Tamm plasmon polariton wavelength have been predicted in the framework of the coupled mode theory. The metallic layer material and thickness corresponding to the maximum coupling between the incident radiation and the Tamm plasmon polariton has been determined. Experimental reflectance and transmittance spectra of the structure consisting of the Bragg mirror and chromium layers of different thicknesses have been measured. The analysis of the energy spectra shows the existence of the wavelength range with the near-unity absorption coefficient inside the Bragg mirror bandgap. The use of chromium as a metal results in the broadband Tamm plasmon polariton excitation. It is demonstrated that the experimental data is in a good agreement with the calculation.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia.
Skolkovo Inst Sci & Technol, Ctr Design Mfg & Mat, 3 Nobel St, Moscow 143026, Russia.

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Svyakhovskiy, Sergey E.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Pankin, P. S.; Панкин, Павел Сергеевич; Evlashin, Stanislav A.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Russian Foundation for Basic Research (RFBR) [18-32-00053]; Russian Federation [MK-2761.2019.2]

/ M. N. Krakhalev [et al.] // 15th Eur. Conf. Liq. Cryst. (ECLC) : conf. progr. - 2019. - Ст. PC-06. - Cited References: 2

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Доп.точки доступа:
Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; European Conference on Liquid Crystals(15 ; 2019 ; June 30 - July 5 ; Wroclaw, Poland)

/ R. G. Bikbaev, S. Ya Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 10. - P. 2817-2823, DOI 10.1364/JOSAB.36.002817. - Cited References: 44. - The reported study was funded by RFBR according to the research project No 18-32-00053 and financial support RFBR and MOST according to the research project No 19-52-52006. . - ISSN 0740-3224
Аннотация: We demonstrate the possibility of using transparent conducting oxides [aluminum-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), indium tin oxide (ITO)] to form Tamm plasmon polaritons in the near-infrared spectral range where the permittivity of oxides is near zero. The spectral properties of the structures are investigated in the framework of the temporal coupled-mode theory and confirmed by the transfer matrix method. It is found that in the critical coupling conditions, the maximal Q-factor of a Tamm plasmon polariton is achieved when a photonic crystal is conjugated with the AZO film, while at the conjugation with the ITO films, the broadest spectral line is obtained. The sensitivity of the wavelength and spectral width of the Tamm plasmon polariton to changes in the oxide film thickness, bulk concentration of a dopant, and angle of incidence is demonstrated.

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

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Бикбаев, Рашид Гельмединович