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Pyatnov, M. V.
Tunable hybrid optical modes in a bounded cholesteric liquid crystal with a twist defect / M. V. Pyatnov, S. Y. Vetrov, I. V. Timofeev // Phys. Rev. E. - 2018. - Vol. 97, Is. 3. - Ст. 032703, DOI 10.1103/PhysRevE.97.032703. - Cited References:47. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund for the research Projects No. 17-42-240464 and No. 18-42-243025. . - ISSN 2470-0045. - ISSN 2470-0053

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
SCULPTURED THIN-FILMS
   STRUCTURE ADJACENT
   TAMM PLASMONS
   STATES
   METAL
Аннотация: Coupling between the defect mode of a cholesteric liquid crystal and the localized mode of a cholesteric liquid crystal-phase plate-metal structure is theoretically demonstrated. It is shown that the transmittance spectrum can be tuned by changing the twist-defect angle and helix pitch, which are governed by external factors. The spectra for different circular polarizations of the incident light are different; specifically, at the nondiffracting polarization, there is no defect-mode transmittance peak.

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

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; 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, 18-42-243025]
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Bikbaev, R. G.
Transparent conductive oxides for the epsilon-near-zero Tamm plasmon polaritons / 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
Кл.слова (ненормированные):
Aluminum oxide -- II-VI semiconductors -- Indium compounds -- Infrared devices -- Optical films -- Phonons -- Photons -- Plasmons -- Q factor measurement -- Tin oxides -- Transfer matrix method -- Transparent conducting oxides -- Zinc oxide
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
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Thermoelectric and Plasmonic Properties of Metal Nanoparticles Linked by Conductive Molecular Bridges / A. S. Fedorov, P. O. Krasnov, M. A. Visotin [et al.] // Phys. Status Solidi B. - 2020. - Vol. 257, Is. 12. - Ст. 2000249, DOI 10.1002/pssb.202000249. - Cited References: 53. - This study was supported by the Russian Science Foundation, project no. 16-13-00060 (thermoelectric properties), and by the Ministry of Science and High Education of the Russian Federation, project no. FSRZ-2020-0008 (plasmonic properties) . - ISSN 0370-1972. - ISSN 1521-3951

РУБ Physics, Condensed Matter
Рубрики:
POLYMERS
ARRAYS
RANGE
Кл.слова (ненормированные):
charge transfer plasmons -- density functional theory -- nanoparticles -- thermoelectric properties
Аннотация: Thermoelectric and plasmonic properties of systems comprising small golden nanoparticles (NPs) linked by narrow conductive polymer bridges are studied using the original hybrid quantum-classical model. The bridges are considered here to be either conjugated polyacetylene, polypyrrole, or polythiophene chain molecules terminated by thiol groups. The parameters required for the model are obtained using density functional theory and density functional tight-binding simulations. Charge-transfer plasmons in the considered dumbbell structures are found to possess frequency in the infrared region for all considered molecular linkers. The appearance of plasmon vibrations and the existence of charge flow through the conductive molecule, with manifestation of quantum properties, are confirmed using frequency-dependent polarizability calculations implemented in the coupled perturbed Kohn-Sham method. To study the thermoelectric properties of the 1D periodical systems, a universal equation for the Seebeck coefficient is derived. The phonon part of the thermal conductivity for the periodical -NP-S-C8H8- system is calculated by the classical molecular dynamics. The thermoelectric figure of meritZTis calculated by considering the electrical quantum conductivity of the systems in the ballistic regime. It is shown that forAu309nanoparticles connected by polyacetylene, polypyrrole, or polythiophene chains atT = 300 K, the ZTvalue is {0.08;0.45;0.40}, respectively.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
RAS, Kirensky Inst Phys, KSC, SB, Krasnoyarsk 660036, Russia.
Tomsk State Univ, Tomsk 634050, Russia.

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, Pavel O.; Visotin, M. A.; Высотин, Максим Александрович; Tomilin, F. N.; Томилин, Феликс Николаевич; Polyutov, Sergey P.; Russian Science FoundationRussian Science Foundation (RSF) [16-13-00060]; Ministry of Science and High Education of the Russian Federation; FSRZ-2020-0008 (plasmonic properties)
}
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Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited] / V. S. Gerasimov [et al.] // Opt. Mater. Express. - 2017. - Vol. 7, Is. 2. - P. 555-568, DOI 10.1364/OME.7.000555. - Cited References: 68. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2017-2019 and SB RAS Program No II.2P (0358-2015-0010). The calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Federal Research Center KSC SB RAS. . - ISSN 2159-3930
Кл.слова (ненормированные):
Aggregates -- Gold -- Nanoparticles -- Plasmons -- Silver -- Ag nanoparticle -- High intensity -- Light-induced process -- Nanoparticle aggregate -- Physical model -- Plasmonic nanoparticle -- Pulsed-laser field -- Thermal interaction -- Pulsed lasers
Аннотация: We have studied light induced processes in nanocolloids and composite materials containing ordered and disordered aggregates of plasmonic nanoparticles accompanied by their strong heating. A universal comprehensive physical model that combines mechanical, electrodynamical, and thermal interactions at nanoscale has been developed as a tool for investigations. This model was used to gain deep insight on phenomena that take place in nanoparticle aggregates under high-intensity pulsed laser radiation resulting in the suppression of nanoparticle resonant properties. Verification of the model was carried out with single colloidal Au and Ag nanoparticles and their aggregates. © 2017 Optical Society of America.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Royal Institute of Technology, Stockholm, Sweden
The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Karpov, S. V.; Карпов, Сергей Васильевич; Gavrilyuk, A. P.; Zakomirnyi, V. I.; Rasskazov, I. L.; Agren, H.; Polyutov, S. P.
}
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Tamm plasmons in TiO2 nanotube photonic crystals / M. V. Pyatnov, R. G. Bikbaev, I. V. Timofeev [et al.] // Photonics. - 2023. - Vol. 10, Is. 1. - Ст. 64, DOI 10.3390/photonics10010064. - Cited References: 40. - This research was funded by Russian Science Foundation and Krasnoyarsk Regional Fund of Science, project № 22-22-20078, https://rscf.ru/project/22-22-20078/ (accessed on 01 January 2023) . - ISSN 2304-6732
Кл.слова (ненормированные):
photonic crystals -- titanium dioxide -- absorbers -- anodization
Аннотация: The anodic TiO2 photonic crystals evoke great interest for application as photocatalytic media due to high absorption of light resuling from their specific structure. In this work, the optical properties of the photonic crystal based on a bamboo-type TiO2 nanotube with a metallic coating are analyzed theoretically by the finite-difference time-domain method. The occurrence of Tamm plasmons that appears as a peak in the absorption spectrum is predicted. A Tamm plasmon polariton is a localized state of light excited at the boundary of two highly reflective media, a metal and a Bragg reflector. The integral absorption of the gold-, titanium-, and titanium nitride-coated photonic crystals in the wavelength range of 450–600 nm is calculated. It is established that the titanium nitride-coated structure exhibits the maximum integral absorption.

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

Доп.точки доступа:
Pyatnov, M. V.; Пятнов, Максим Владимирович; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ryzhkov, Ilya I.; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Surface plasmon resonances in liquid metal nanoparticles / A. E. Ershov [et al.] // Appl. Phys. B. - 2017. - Vol. 123, Is. 6. - Ст. 182, DOI 10.1007/s00340-017-6755-2. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientifc research in 2017–2019. The numerical calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences. . - ISSN 0946-2171
Кл.слова (ненормированные):
Aggregates -- Dimers -- Gold -- Liquids -- Metal nanoparticles -- Nanoparticles -- Nonlinear optics -- Silver -- Surface plasmon resonance -- Au nanoparticle -- Colloidal aggregates -- Experimental values -- Experimental verification -- Metallic nanoparticles -- Nonlinear optical response -- Plasmonic nanoparticle -- Surface plasmon frequency -- Plasmons
Аннотация: We have shown significant suppression of resonant properties of metallic nanoparticles at the surface plasmon frequency during the phase transition “solid–liquid” in the basic materials of nanoplasmonics (Ag, Au). Using experimental values of the optical constants of liquid and solid metals, we have calculated nanoparticle plasmonic absorption spectra. The effect was demonstrated for single particles, dimers and trimers, as well as for the large multiparticle colloidal aggregates. Experimental verification was performed for single Au nanoparticles heated to the melting temperature and above up to full suppression of the surface plasmon resonance. It is emphasized that this effect may underlie the nonlinear optical response of composite materials containing plasmonic nanoparticles and their aggregates. © 2017, Springer-Verlag Berlin Heidelberg.

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Держатели документа:
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State University of Science and Technologies, Krasnoyarsk, Russian Federation
L.V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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Suppression of surface plasmon resonance in Au nanoparticles upon transition to the liquid state / V. S. Gerasimov [et al.] // Opt. Express. - 2016. - Vol. 24, Is. 23. - P. 26851-26856, DOI 10.1364/OE.24.026851. - Cited References: 24. - This work was performed within the State contract of the RF Ministry of Education and Science for Siberian Federal University for scientific research in 2014–2016 (Reference number 1792) and SB RAS Program No II.2P (0358-2015-0010). The numerical calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences. . - ISSN 1094-4087
Кл.слова (ненормированные):
Electron scattering -- Gold -- Lattice constants -- Liquids -- Melting -- Metal nanoparticles -- Nanoparticles -- Surface plasmon resonance -- Electron phonon couplings -- Experimental spectra -- Experimental values -- Gold Nanoparticles -- Nonlinear optical response -- Plasmonic nanoparticle -- Relaxation constants -- Surface plasmon frequency -- Plasmons
Аннотация: Significant suppression of resonant properties of single gold nanoparticles at the surface plasmon frequency during heating and subsequent transition to the liquid state has been demonstrated experimentally and explained for the first time. The results for plasmonic absorption of the nanoparticles have been analyzed by means of Mie theory using experimental values of the optical constants for the liquid and solid metal. The good qualitative agreement between calculated and experimental spectra support the idea that the process of melting is accompanied by an abrupt increase of the relaxation constants, which depends, beside electronphonon coupling, on electron scattering at a rising number of lattice defects in a particle upon growth of its temperature, and subsequent melting as a major cause for the observed plasmonic suppression. It is emphasized that observed effect is fully reversible and may underlie nonlinear optical responses of nanocolloids and composite materials containing plasmonic nanoparticles and their aggregates in conditions of local heating and in general, manifest itself in a wide range of plasmonics phenomena associated with strong heating of nanoparticles. © 2016 Optical Society of America.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarskz, Russian Federation
Division of Theoretical Chemistry and Biology, Royal Institute of Technology, Stockholm, Sweden

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Agren, H.; Polyutov, S. P.
}
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Study of plasmons and thermoelectric properties of nanoparticles connected by thin conductive bridges / A. S. Fedorov, P. O. Krasnov, M. A. Visotin, H. Ågren // The Fifth Asian School-Conference on Physics and Technology of Nanostructured Materials : Proceedings. - VLadivostok : Dalnauka Publishing, 2020. - Ст. VI.30.03o. - P. 168. - This study was supported by the Russian Science Foundation, project no. 16-13-00060. . - ISBN 978-5-8044-1698-1

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Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Krasnov, P.O.; Visotin, M. A.; Высотин, Максим Александрович; Ågren, H.; Asian School-Conference on Physics and Technology of Nanostructured Materials(5 ; 2020 ; 30 Jul - 3 Aug ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(5 ; 2013 ; 30 июля - 3 авг. ; Владивосток)
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Karpov, S. V.
Simulation of conditions for fabrication of optical nanowaveguides in the form of chains of spherical metal nanoparticles by electrostatic functionalization of the process substrate / S. V. Karpov, I. L. Rasskazov // Colloid J. - 2013. - Vol. 75, Is. 3. - P. 279-288, DOI 10.1134/S1061933X13030083 . - ISSN 1061-933X
Кл.слова (ненормированные):
Deposition of metals -- Electrical parameter -- Experimental conditions -- Nonuniform electric field -- Ordered structures -- Selective deposition -- Single-domain structure -- Transmission property -- Deposition -- Electric fields -- Mathematical models -- Metal nanoparticles -- Photoexcitation -- Plasmons -- Sols -- Substrates
Аннотация: A method is proposed for electrostatic functionalization of substrates used to prepare ordered structures composed of closely spaced plasmon-resonant nanoparticles. The method ensures selective deposition of nanoparticles from the bulk of a colloidal system onto the substrates. This method is based on placing a metal nanotemplate of a required configuration at the opposite side of a substrate, with an electric potential being applied to the template. A mathematical model is developed to ensure that the system parameters responsible for the deposition of metal nanoparticles into ordered single-domain structures on the substrate from a bulk sol in a nonuniform electric field generated by the nanotemplate correspond to the real experimental conditions. Since the degree of imperfection of the synthesized chains governs the applicability of these structures to transmission of the optical excitation at the frequency of the surface plasmon of the particles, the dependence of the degree of imperfection on the physicochemical and electrical parameters of the system is studied using the Brownian-dynamics model. The calculations of the spectral and transmission properties of nanowaveguides of this type are exemplified. В© 2013 Pleiades Publishing, Ltd.

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Публикация на русском языке Моделирование условий синтеза оптических нановолноводов из цепочек сферических металлических наночастиц методом электростатической функционализации технологической подложки. - [S. l. : s. n.]

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia;

Доп.точки доступа:
Рассказов, Илья Леонидович; Rasskazov, I. L.; Карпов, Сергей Васильевич
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10.

Refractory titanium nitride two-dimensional structures with extremely narrow surface lattice resonances at telecommunication wavelengths / V. I. Zakomirnyi [et al.] // Appl. Phys. Lett. - 2017. - Vol. 111, Is. 12. - Ст. 123107, DOI 10.1063/1.5000726. - Cited References: 54. - This work was supported by the RF Ministry of Education and Science, the State contract with Siberian Federal University for scientific research in 2017–2019. Numerical calculations were performed using the MVS-1000M system at the Institute of Computational Modeling of the Siberian Branch of the Russian Academy of Sciences. . - ISSN 0003-6951
Кл.слова (ненормированные):
Bandwidth -- Nanoparticles -- Nanostructures -- Optical properties -- Plasmons -- Q factor measurement -- Refractory materials -- Titanium compounds -- Diffractive grating -- Electromagnetic response -- Localized surface plasmon -- Low cost fabrication -- Plasmonic nanoparticle -- Telecommunication bandwidth -- Telecommunication wavelengths -- Two-dimensional structures -- Titanium nitride
Аннотация: Regular arrays of plasmonic nanoparticles have brought significant attention over the last decade due to their ability to support localized surface plasmons (LSPs) and exhibit diffractive grating behavior simultaneously. For a specific set of parameters (i.e., period, particle shape, size, and material), it is possible to generate super-narrow surface lattice resonances (SLRs) that are caused by interference of the LSP and the grating Rayleigh anomaly. In this letter, we propose plasmonic structures based on regular 2D arrays of TiN nanodisks to generate high-Q SLRs in an important telecommunication range, which is quite difficult to achieve with conventional plasmonic materials. The position of the SLR peak can be tailored within the whole telecommunication bandwidth (from ≈ 1.26 μm to ≈ 1.62 μm) by varying the lattice period, while the Q-factor is controlled by changing nanodisk sizes. We show that the Q-factor of SLRs can reach a value of 2 × 103, which is the highest reported Q-factor for SLRs at telecommunication wavelengths so far. Tunability of optical properties, refractory behavior, and low-cost fabrication of TiN nanoparticles paves the way for manufacturing cheap nanostructures with extremely stable and adjustable electromagnetic response at telecommunication wavelengths for a large number of applications.

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Держатели документа:
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, Russian Federation
Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, Stockholm, Sweden
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
Institute of Computational Modeling, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zakomirnyi, V. I.; Rasskazov, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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