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Active beam steering by cholesteric layer with tangential-conical boundary conditions / R. G. Bikbaev, M. N. Krakhalev, O. O. Prishchepa [et al.] // Abstracts of 28th International Liquid Crystal Conference (ILCC 2022). - 2022. - Ст. PF.292. - Cited References: 2

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Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Sutormin, V. S.; Сутормин, Виталий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; International Liquid Crystal Conference(28 ; 2022 ; July ; 24-29 ; Lisbon, Portugal)
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    Broadband Tamm plasmon polariton / 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-поляритон

РУБ Optics
Рубрики:
PHOTONIC CRYSTAL
   OPTICAL-CONSTANTS
   PERFECT ABSORBER
   ABSORPTION
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]
}
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Broadband Tamm plasmons in chirped photonic crystals for light-induced water splitting / M. V. Pyatnov, R. G. Bikbaev, I. V. Timofeev [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 6. - Ст. 928, DOI 10.3390/nano12060928. - Cited References: 41 . - ISSN 2079-4991
Кл.слова (ненормированные):
water splitting -- plasmon catalysis -- solar-to-hydrogen efficiency -- photocurrent
Аннотация: An electrode of a light-induced cell for water splitting based on a broadband Tamm plasmon polariton localized at the interface between a thin TiN layer and a chirped photonic crystal has been developed. To facilitate the injection of hot electrons from the metal layer by decreasing the Schottky barrier, a thin n-Si film is embedded between the metal layer and multilayer mirror. The chipping of a multilayer mirror provides a large band gap and, as a result, leads to an increase in the integral absorption from 52 to 60 percent in the wavelength range from 700 to 1400 nm. It was shown that the photoresponsivity of the device is 32.1 mA/W, and solar to hydrogen efficiency is 3.95%.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Computer Modelling, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Pyatnov, M. V.; Пятнов, Максим Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ryzhkov, I. I.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Chiral optical Tamm state at the interface between multilayer polarization-preserving anisotropic mirror and cholesteric / 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)
}
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Chiral optical Tamm states at the interface between a cholesteric and an all-dielectric polarization-preserving anisotropic mirror / 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)
}
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Chiral optical Tamm states at the interface between a Dye-doped cholesteric liquid crystal and an anisotropic mirror / A. Yu. Avdeeva, S. Ya. Vetrov, R. G. Bikbaev [et al.] // Materials. - 2020. - Vol. 13, Is. 15. - Ст. 3255, DOI 10.3390/ma13153255. - Cited References: 44. - 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. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006 . - ISSN 1996-1944

РУБ Materials Science, Multidisciplinary
Рубрики:
PHASE
POLARIZATION
MODES
Кл.слова (ненормированные):
localization of light -- photonic crystals -- chirality -- dye-doped cholesteric liquid crystal -- optical Tamm states -- resonant frequency dispersion
Аннотация: The resonant splitting of optical Tamm state numerically is demonstrated. The Tamm state is localized at the interface between a resonant chiral medium and a polarization-preserving anisotropic mirror. The chiral medium is considered as a cholesteric liquid crystal doped with resonant dye molecules. The article shows that the splitting occurs when dye resonance frequency coincides with the frequency of the Tamm state. In this case the reflectance, transmittance, and absorptance spectra show two distinct Tamm modes. For both modes, the field localization is at the interface between the media. The external field control of configurable optical and structural parameters paves the way for use in tunable chiral microlaser.

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Публикация в сборнике Soft photonic crystals and metamaterials [Текст] / ed., pref.: I. V. Timofeev, W. Lee, 2022. - VII с. ; 127 с. (Введено оглавление)

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

Доп.точки доступа:
Avdeeva, A. Yu.; Авдеева, Анастасия Юрьевна; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pyatnov, M. V.; Пятнов, Максим Владимирович; Rudakova, N. V.; Рудакова, Наталья Викторовна; Timofeev, I. V.; Тимофеев, Иван Владимирович; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [19-42-240004]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52006]
}
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Chiral optical Tamm states at the interface between an all-dielectric polarization-preserving anisotropic mirror and a cholesteric liquid crystal / N. V. Rudakova [et al.] // Crystals. - 2019. - Vol. 9, Is. 10. - Ст. 502, DOI 10.3390/cryst9100502. - Cited References: 48. - Russian Foundation for Basic Research (RFBR), Russia, grant No. 19-52-52006; Ministry of Science and Technology, Taiwan (MOST), grant No. 106-2923-M-009-002-MY3; M.V.P. thanks RFBR and KRSTSF for the research Project No. 18-42-243025. . - ISSN 2073-4352
Кл.слова (ненормированные):
Optical Tamm state -- Cholesteric liquid crystal -- Polarization-preserving anisotropic mirror
Аннотация: As a new localized state of light, the chiral optical Tamm state exists at the interface between a polarization-retaining anisotropic mirror and a substance with optical activity. Considering a hybrid structure comprising a metal-free polarization-preserving mirror and a cholesteric liquid crystal, we highlight the high Q factor arising from the all-dielectric framework. The intensity of localized light decreases exponentially with increasing distance from the interface. The penetration of the field into the cholesteric liquid crystal is essentially prohibited for wavelengths lying in the photonic bandgap and close to the cholesteric pitch length. The dielectric mirror has its own photonic bandgap. The energy transfer along the interface can be effectively switched off by setting the tangential wave vector to zero. The spectral behavior of the chiral optical Tamm state is observed both as reflection and transmission resonance. This Fano resonance is analogous to the Kopp-Genack effect. Our analytics are well in line with precise calculations, which may pave a new route for the future development of intelligent design for laser and sensing applications.

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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
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Tainan, 71150, Taiwan

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; Lee, W.
}
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Chiral-selective Tamm plasmon polaritons / M.-Y. Lin, W.-H. Xu, R. G. Bikbaev [et al.] // Materials. - 2021. - Vol. 14, Is. 11. - Ст. 2788, DOI 10.3390/ma14112788. - Cited References: 46. - Thanks to Taiwan Semiconductor Research Institute (TSRI) and Center for Micro/Nano Science and Technology (CMNST) for the fabrication facility. The fabrication of the metasurfaces were also assisted by Yu-Lun Kuo, Mao-Guo Sun, and Chi-Yin Yang. We especially appreciate the support from Shie-Chang Jeng for supplying the CLC . - ISSN 1996-1944
Кл.слова (ненормированные):
metasurfaces -- Tamm plasmon polaritons -- chirality
Аннотация: Chiral-selective Tamm plasmon polariton (TPP) has been investigated at the interface between a cholesteric liquid crystal and a metasurface. Different from conventional TPP that occurs with distributed Bragg reflectors and metals, the chiral–achiral TPP is successfully demonstrated. The design of the metasurface as a reflective half-wave plate provides phase and polarization matching. Accordingly, a strong localized electric field and sharp resonance are observed and proven to be widely tunable.

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Публикация в сборнике Soft photonic crystals and metamaterials [Текст] / ed., pref.: I. V. Timofeev, W. Lee, 2022. - VII с. ; 127 с. (Введено оглавление)

Держатели документа:
Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University and National Yang Ming Chiao Tung University, 301 Gaofa 3rd Road, Tainan, 71150, Taiwan
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Photonic System, College of Photonics, National Chiao Tung University and National Yang Ming Chiao Tung University, 301 Gaofa 3rd Road, Tainan, 71150, Taiwan
Institute of Lighting and Energy Photonics, College of Photonics, National Chiao Tung University and National Yang Ming Chiao Tung University, 301 Gaofa 3rd Road, Tainan, 71150, Taiwan

Доп.точки доступа:
Lin, M. -Y.; Xu, W. -H.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Yang, J. -H.; Li, C. -R.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Lee, W.; Chen, K. -P.
}
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    Cholesteric layers with tangential-conical surface anchoring for an electrically controlled polarization rotator / V. S. Sutormin, M. N. Krakhalev, I. V. Timofeev [et al.] // Opt. Mater. Express. - 2021. - Vol. 11, Is. 5. - P. 1527-1536, DOI 10.1364/OME.425130. - Cited References: 25. - Russian Science Foundation (Grant No. 18-72-10036) . - ISSN 2159-3930
   Перевод заглавия: Холестерические слои с тангенциально-коническим поверхностным сцеплением для электро-управляемого вращателя поляризации
Кл.слова (ненормированные):
Azimuthal rotation -- Cholesteric helix -- Conical boundary condition -- Conical surfaces -- Control voltages -- Controlled polarization -- Polarization characteristics -- Voltage dependence
Аннотация: The voltage dependences of polarization characteristics of light passed through the cholesteric layers with tangential-conical boundary conditions have been investigated. It has been shown that such layers allow turning the polarization azimuth more than 70˚ because of the unique untwisting effect of the cholesteric helix, due to free azimuthal rotation of the director on the substrate with conical anchoring. Optical cells under study have some advantages (low control voltage, smooth variation of polarization azimuth, simplicity of design) and can be used as an electrically controlled polarization rotator of white light.

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Держатели документа:
Federal Research Center Ksc Sb Ras, Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Sutormin, V. S.; Сутормин, Виталий Сергеевич; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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10.

Collective resonances in hybrid photonic-plasmonic nanostructures / A. E. Ershov [et al.] // International Conference on Metamaterials and Nanophotonics (METANANO 2019). - St. Petersburg, 2019

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Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Андреевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Rasskazov, I. L.; Рассказов, Илья Леонидович; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; International Conference on Metamaterials and Nanophotonics(4 ; 2019 ; July ; 15-19 ; Saint Peresburg); Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики
}
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11.

Collective resonances in hybrid photonic-plasmonic nanostructures / A. E. Ershov, R. G. Bikbaev, I. L. Rasskazov [et al.] // J. Phys.: Conf. Ser. - 2020. - Vol. 1461, Is. 1. - Ст. 012046DOI 10.1088/1742-6596/1461/1/012046. - Cited References: 11. - 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); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Кл.слова (ненормированные):
Hybrid systems -- Plasmonics -- Time domain analysis -- 1-D photonic crystal -- Defect layers -- Nanodisks -- Periodic arrays -- Plasmonic nanostructures -- Rayleigh anomalies -- Spectral position -- Theoretical modeling -- Finite difference time domain method
Аннотация: We present the theoretical model to predict the spectral position of Rayleigh anomalies emerged in hybrid system consisting of periodic array of plasmonic nanodisks embeded into the middle of defect layer of 1D photonic crystal (PhC). The spectral positions of these new emerged Rayleigh anomalies agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Доп.точки доступа:
Ershov, A. E.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Rasskazov, I. L.; Gerasimov, V. S.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; International Conference on Metamaterials and Nanophotonics(4th ; 15 - 19 July 2019 ; St. Petersburg, Russian Federation)
}
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12.

Critical coupling vortex with grating-induced high Q-factor optical Tamm states / R. G. Bikbaev, D. N. Maksimov, P. S. Pankin [et al.] // Opt. Express. - 2021. - Vol. 29, Is. 3. - P. 4672-4680, DOI 10.1364/OE.416132. - Cited References: 54. - Funding. Ministry of Science and Technology, Taiwan (108-2923E-009-003-MY3); Russian Foundation for Basic Research (19-52-52006); Council on grants of the President of the Russian Federation (MK-46.2021.1.2) . - ISSN 1094-4087
Кл.слова (ненормированные):
Angle of Incidence -- Bound state -- Coupled mode theory -- Critical coupling -- Dielectric grating -- High Q-factor -- Reflectance amplitudes -- Reflection amplitude
Аннотация: We investigate optical Tamm states supported by a dielectric grating placed on top of a distributed Bragg reflector. It is found that under certain conditions the Tamm state may become a bound state in the continuum. The bound state, in its turn, induces the effect of critical coupling with the reflectance amplitude reaching an exact zero. We demonstrate that the critical coupling point is located in the core of a vortex of the reflection amplitude gradient in the space of the wavelength and angle of incidence. The emergence of the vortex is explained by the coupled mode theory.

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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
Institute of Imaging and Biomedical Photonics, National Chiao Tung University, Tainan, 71150, Taiwan

Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Pankin, P. S.; Панкин, Павел Сергеевич; Chen, K. -P.; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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13.

Director configurations in cholesteric layer with tangential-conical boundary conditions / 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)
}
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14.

Double-resolved beam steering by metagrating-based Tamm plasmon polariton / R. G. Bikbaev, D. N. Maksimov, K.-P. Chen, I. V. Timofeev // Materials. - 2022. - Vol. 15, Is. 17. - Ст. 6014, DOI 10.3390/ma15176014. - Cited References: 29. - This research was funded by the Russian Science Foundation (project no. 22-42-08003). This work was supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and Ministry of Education and the Ministry of Science and Technology (111-2923-E-A49-001-MY3, 110-2221-E-A49-019-MY3, 109-2628-E-009-007-MY3) . - ISSN 1996-1944
Кл.слова (ненормированные):
metasurface -- metagratings -- tamm plasmon polaritons -- chirality
Аннотация: We consider Tamm plasmon polariton in a subwavelength grating patterned on top of a Bragg reflector. We demonstrate dynamic control of the phase and amplitude of a plane wave reflected from such metagrating due to resonant coupling with the Tamm plasmon polariton. The tunability of the phase and amplitude of the reflected wave arises from modulation of the refractive index of a transparent conductive oxide layer by applying the bias voltage. The electrical switching of diffracted beams of the ±1st order is shown. The possibility of doubling the angular resolution of beam steering by using asymmetric reflected phase distribution with integer and half-integer periods of the metagrating is demonstrated.

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Публикация в сборнике Soft photonic crystals and metamaterials [Текст] / ed., pref.: I. V. Timofeev, W. Lee, 2022. - VII с. ; 127 с. (Введено оглавление)

Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, 30013, Taiwan
Institute of Imaging and Biomedical Photonics, National Yang Ming Chiao Tung University, Tainan, 71150, Taiwan

Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Chen, K.-P.; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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15.

    Electrically induced transformations of defects in cholesteric layer with tangential-conical boundary conditions / M. N. Krakhalev, O. O. Prishchepa, V. S. Sutormin [et al.] // Sci. Rep. - 2020. - Vol. 10, Is. 1. - Ст. 4907, DOI 10.1038/s41598-020-61713-9. - Cited References: 45. - The authors are grateful for the financial support by the Russian Science Foundation (Grant No. 18-72-10036) . - ISSN 2045-2322
   Перевод заглавия: Электро-индуцированные трансформации дефектов в холестерическом слое с тангенциально-коническими граничными условиями
Кл.слова (ненормированные):
electric field -- liquid crystal -- pitch -- polarization microscopy -- thickness
Аннотация: Electric-field-induced changes of the orientational structures of cholesteric liquid crystal layer with the tangential-conical boundary conditions have been investigated. The samples with the ratio of the cholesteric layer thickness d to the helix pitch p equalled to 0.57 have been considered. The perpendicularly applied electric field causes a decrease of the azimuthal director angle at the substrate with the conical surface anchoring. In the cells with d = 22 μm, the defect loops having the under-twisted and over-twisted areas are formed. At the defect loop the pair of point peculiarities is observed where the 180° jump of azimuthal angle of the director occurs. Under the action of electric field the loops shrink and disappear. In the cells with d = 13 μm, the over-twisted and under-twisted defect lines are formed. Applied voltage results in the shortening of lines or/and their transformation into a defect of the third type. The director field distribution near defect lines of three types has been investigated by the polarising microscopy techniques. It has been revealed that the length ratio between the over-twisted and third-type defect lines can be controlled by the electric field.

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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:
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
}
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16.

Electrically induced transformations of the cholesteric structure with tangential-conical boundary conditions / M. N. Krakhalev, O. O. Prishchepa, V. S. Sutormin [et al.] // Abstracts of 28th International Liquid Crystal Conference (ILCC 2022). - 2022. - Ст. PE.236. - Cited References: 3

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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; International Liquid Crystal Conference(28 ; 2022 ; July ; 24-29 ; Lisbon, Portugal)
}
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17.

    Engineering mode hybridization in regular arrays of plasmonic nanoparticles embedded in 1D photonic crystal / 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
Кл.слова (ненормированные):
Surface lattice resonance -- Photonic crystal -- Optical cavity
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
}
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18.

Enhanced light absorption in Tamm metasurface with a bound state in the continuum / R. G. Bikbaev, D. N. Maksimov, P. S. Pankin [et al.] // Photonics Nanostruct. Fundam. Appl. - 2023. - Vol. 55. - Ст. 101148, DOI 10.1016/j.photonics.2023.101148. - Cited References: 47. - This research was funded by the Russian Science Foundation (project no. 22-42-08003). This work was supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and Ministry of Education and the National Science and Technology Council (NSTC 109-2628-E-007 -003 -MY3; 111-2923-E007 -008 -MY3; 111-2628-E-007-021) . - ISSN 1569-4410. - ISSN 1569-4429
Кл.слова (ненормированные):
Tamm plasmon polariton -- Bound state in the continuum -- Metasurface
Аннотация: We consider light absorption in a germanium grating placed on top of photonic-crystalline substrate. Such a system supports an optical Tamm state decoupled from the continuous spectrum with its frequency within the photonic band gap. We have demonstrated that application of the Tamm state makes in possible to engineer extremely narrow absorber which provides a 100 % absorption in a semiconductor grating in the critical coupling regime. The proposed design may be used at both normal and oblique incidence at the telecom wavelength.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk660041, Russia
College of Photonics, National Yang Ming Chiao Tung University, Tainan 711, Taiwan
Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 300, Taiwan

Доп.точки доступа:
Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Pankin, P. S.; Панкин, Павел Сергеевич; Ye, Ming-Jyun; Chen, Kuo-Ping; Timofeev, I. V.; Тимофеев, Иван Владимирович
}
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19.

Bikbaev, R. G.
Epsilon-Near-Zero Absorber by Tamm Plasmon Polariton / 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 2304-6732

РУБ Optics
Рубрики:
PERFECT ABSORPTION
   PHOTONIC CRYSTAL
   PROPAGATION
   LIGHT
Кл.слова (ненормированные):
photonic crystal -- nanocomposite -- epsilon near-zero material -- Tamm plasmon polariton
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]
}
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20.

Experimental demonstration of broadband optical Tamm states in photonic crystal / 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
Кл.слова (ненормированные):
Photonic crystal -- Tamm state -- Plasmon-polariton -- Broadband absorber
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)
}
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