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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Рассказов, Илья Леонидович, Karpov S. V., Markel V. A.
Заглавие : Nondecaying surface plasmon polaritons in linear chains of silver nanospheroids
Место публикации : Opt. Lett. - 2013. - Vol. 38, Is. 22. - P.4743-4746. - ISSN 0146-9592, DOI 10.1364/OL.38.004743
Аннотация: We consider propagation of surface plasmon polaritons in linear chains of equidistant metallic nanospheroids. We show that, for suitably chosen parameters, the propagation is free of spatial decay in spite of the full account of absorptive losses in the metal. В© 2013 Optical Society of America.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Zabluda V. N., Sokolov A. E., Ovchinnikov S. G., Knyazev B. A., Michlin J. L., Veshnyakova E.A., Zubavichus Y. V., Kalsin A. M., Gerasimov V. V.
Заглавие : Vizible and terahertz magnetooptics in gold and silver low-dimensional objects : Abstract
Коллективы : "Functional Materials", International Conference , Taurida National V. I. Vernadsky University
Место публикации : Functional materials: Abstracts/ ed. V. N. Berzhansky. - Simferopol, 2013. - P.223. - ISBN 978-966-491-465-6
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Sokolov A. E., Zabluda V. N., Ovchinnikov S. G., Knyazev B. A., Gerasimov V. V., Michlin J. L., Veshnyakova E.A., Zubavichus Y. V., Kalsin A. M.
Заглавие : Magnetooptics in gold and silver nanosizes low-dimensional objects
Коллективы : "Nanomaterials: Application and Properties", International Conference (3; 16–21 Sept., 2013; Alushta, Ukraine)
Место публикации : Proc. Int. Conf. Nanomaterials: Application and Properties. - 2013. - Vol. 2, № 1. - Ст.01NFPMM06
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mikhlin Y. L., Vishnyakova E. A., Romanchenko A. S., Saikova S. V., Likhatski M. N., Larichev Y. V., Tuzikov F. V., Zaikovskii V. I., Zharkov S. M.
Заглавие : Oxidation of Ag nanoparticles in aqueous media: Effect of particle size and capping
Место публикации : Appl. Surf. Sci.: Elsevier Science, 2014. - Vol. 297. - P.75-83. - ISSN 0169-4332, DOI 10.1016/j.apsusc.2014.01.081. - ISSN 1873-5584
Примечания : Cited References: 58. - This work was partially financially supported by the Ministry of Education and Science of RF (Grant 8580) and RFBR (12-03-31178).
Предметные рубрики: EX-SITU XPS
POLYCRYSTALLINE SILVER ELECTRODES
RAY PHOTOELECTRON-SPECTROSCOPY
METAL NANOPARTICLES
ELECTROCHEMICAL OXIDATION
ABSORPTION SPECTROSCOPY
PYROLYTIC-GRAPHITE
OXYGEN-ADSORPTION
TRANSFORMATIONS
DISSOLUTION
Ключевые слова (''Своб.индексиров.''): silver nanoparticles--oxidation--resistive switching effect--x-ray photoelectron spectroscopy
Аннотация: Many applications and environmental impact of silver-bearing nanomaterials critically depend upon their specific reactivity, which is still poorly understood. Here, silver nanoparticles (Ag NPs) of about 3-5 nm and 10-12 nm in diameter, uncapped and capped with l-glucose or citrate, were prepared, characterized using UV-vis absorption spectroscopy, SAXS, TEM, and their (electro) chemical oxidation was examined in comparison with each other and bulk metal applying scanning tunneling microscopy and spectroscopy, cyclic voltammetry, and XPS. A resistive switching effect was found in the tunneling spectra measured in air at the smaller uncapped Ag NPs deposited on HOPG and was interpreted in terms of Ag transfer between the particle and the probe. The anodic oxidation of these Ag NPs in 1 M NaOH yielded 3D Ag2O, while only a layer of "primary"Ag(I) oxide emerged on larger uncapped nanoparticles during the potential sweep. The formation of AgO at higher potentials proceeded readily at the "primary"oxide but was retarded at the smaller NPs. The citrate- and glucose-capping substantially impeded the formation both of Ag2O and AgO. The findings highlighted, particularly, a non-trivial effect of particle size and transient mobilization of Ag species on the reactions of silver nanoparticles. (c) 2014 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gavrilyuk A. P., Karpov S. V., Semina P. N.
Заглавие : Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles
Коллективы : Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
Место публикации : Appl. Phys. B: Springer, 2014. - Vol. 115, Is. 4. - P.547-560. - ISSN 0946-2171, DOI 10.1007/s00340-013-5636-6. - ISSN 1432-0649
Примечания : Cited References: 48. - Authors are thankful to Prof. V. A. Markel (University of Pennsylvania) for supplying program codes for realization of the coupled dipole method for polydisperse metal nanoparticle aggregates. This research was supported by the Russian Academy of Sciences under the Grants 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101); Ministry of Education and Science of Russian Federation under Contract 14.B37.21.0457.
Предметные рубрики: SMALL-PARTICLE COMPOSITES
OPTICAL-PROPERTIES
NOBLE-METALS
SILVER
ELECTRON
LIQUID
GENERATION
DYNAMICS
FORCES
GOLD
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Slabko V. V., Tsipotan A. S. , Aleksandrovsky A. S., Slyusareva E. A.
Заглавие : Dynamics of self-organized aggregation of resonant nanoparticles in a laser field
Коллективы : Grant of the Ministry of Education and Science of the Russian Federation for Siberian Federal University; SB RAS Grant [24.31]; RFBR [14-02-00219 A]
Место публикации : Appl. Phys. B: Springer, 2014. - Vol. 117, Is. 1. - P.271-278. - ISSN 0946-2171, DOI 10.1007/s00340-014-5831-0. - ISSN 1432-0649
Примечания : Cited References: 30. - This research is partially supported by Grant of the Ministry of Education and Science of the Russian Federation for Siberian Federal University, by SB RAS Grant 24.31, and by RFBR Research Project No. 14-02-00219 A.
Предметные рубрики: PHOTOSTIMULATED AGGREGATION
SILVER
PRINCIPLES
PARTICLES
SPECTRA
SOLS
Аннотация: Self-organized aggregation of nanoparticles in external resonant laser field is considered using Brownian dynamics model. Formation probabilities are calculated for the pair of particles in dependence on laser wavelength and mutual orientation of particles. Times required for aggregation are calculated. Possibility of efficient aggregation using pulsed laser is deduced.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Rasskazov I. L., Karpov S. V., Markel V. V.
Заглавие : Surface plasmon polaritons in linear chains of silver nanospheroids
Коллективы : Edition of the International Conference Series on Laser-light and Interactions with Particles (10; 2014 ; Aug. ; 25-29; Marseille, France)
Место публикации : 10th Edition of the International Conference Series on Laser-light and Interactions with Particles (LIP-2014): Book of extended abstracts. - 2014. - P.6.1-6.3
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Golovnev N. N., Molokeev M. S., Lutoshkin M. A.
Заглавие : Crystal structure of catena-(μ4-1,3-diethyl-2-thiobarbiturato-O,O’,S,S)silver(I)
Место публикации : Russ. J. Inorg. Chem.: MAIK Nauka-Interperiodica / Springer, 2015. - Vol. 60, Is. 5. - P.572-576. - ISSN 0036, DOI 10.1134/S0036023615050071. - ISSN 15318613(eISSN)
Примечания : Cited References:25
Предметные рубрики: 1,3-DIETHYL-2-THIOBARBITURIC ACID
HYDROGEN-BOND
COMPLEXES
Аннотация: The crystal structure of catena-(μ4-1,3-diethyl-2-thiobarbiturato-O,O’,S,S)silver(I) [Ag(μ4-DETBA-O,O’,S,S] (1), where HDETBA is 1,3-diethyl-2-thiobarbituric acid C8H12N2O2S, has been solved by X-ray powder diffraction. Crystals of complex 1 are monoclinic, a = 7.8339(2) Å, b = 15.4970(4) Å, c = 8.7502(2) Å, β = 111.916(2)°, V = 985.53(5) Å3, space group P21/c, Z = 4. The Ag+ ion is coordinated by two oxygen atoms and two sulfur atoms to form a distorted tetrahedron. Tetrahedra share sulfur atom vertices to form infinite chains linked via bridging DETBA− ions into a three-dimensional framework. No hydrogen bonds have been found in the structure, but π-π interaction is observed between DETBA− ions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Popkov S. I., Semenov S. V., Bykov A. A., Shaykhutdinov K. A., Gokhfeld D. M., Petrov M. I.
Заглавие : Magnetoresistance hysteresis of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics and its anisotropy
Коллективы :
Место публикации : Physica C. - 2010. - Vol. 470, Is. 1. - P.61-67. - ISSN 0921-4534, DOI 10.1016/j.physc.2009.10.007
Примечания : Cited References: 24. - Authors thanks to I.L. Belozerova for help in preparation of textured ceramics. This work was supported by program N5 of RAS, project N7, and in part in frames of young scientist projects of Siberian Federal University, project N6.
Предметные рубрики: CRITICAL-CURRENT ANISOTROPY
HIGH-TEMPERATURE SUPERCONDUCTOR
CRITICAL-CURRENT DENSITY
MAGNETIC HYSTERESIS
TAPES
FLUX
YBA2CU3O7-DELTA
FIELD
Ключевые слова (''Своб.индексиров.''): magnetoresistance--anisotropy--scaling--magnetization--bi2223--bscco--anisotropy--bi2223--bscco--magnetization--magnetoresistance--scaling--bi-2223--bscco--external fields--granular superconductors--magnetic induction--parameters characterizing--anisotropy--calcium--ceramic materials--crystallites--electric resistance--hysteresis--lead--magnetic moments--magnetoelectronics--magnetoresistance--nanocrystalline alloys--silver--superconducting materials--superconductivity--magnetic field effects
Аннотация: Magnetoresistance of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu3Ox + Ag ceramics has been studied in the magnetic fields applied parallel and perpendicular to a-b planes of Bi2223 crystallites. Besides well known anisotropy of magnetoresistance of textured superconductors (R-H parallel to c RH parallel to a-b), anisotropic hysteresis of R(H) dependences was investigated. Parameters characterizing hysteretic R(H) curves differ for the cases H parallel to c and H parallel to a-b. This behavior is explained within the model of a granular superconductor where the total magnetic induction in the intercrystallite boundaries is superposition of the external field and the magnetic field induced by dipole magnetic moments of neighbor crystallites. (C) 2009 Elsevier B.V. All rights reserved.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Belozerova I. L., Shaikhutdinov K. A., Balaev D. A., Dubrovskii A. A., Popkov S. I., Vasil'ev A. D., Mart'yanov O. N.
Заглавие : Preparation, microstructure, magnetic and transport properties of bulk textured Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) and Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x)+Agceramics
Коллективы :
Разночтения заглавия :авие SCOPUS: Preparation, microstructure, magnetic and transport properties of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu 3Ox and Bi1.8Pb0.3Sr 1.9Ca2Cu3Ox+Ag ceramics
Место публикации : Supercond. Sci. Technol.: IOP PUBLISHING LTD, 2008. - Vol. 21, Is. 10. - Ст.105019. - ISSN 0953-2048, DOI 10.1088/0953-2048/21/10/105019
Примечания : Cited References: 22. - This work is supported by program of RAS 'Quantum macrophysics' No. 3.4 and integration project of SB RAS No. 3.4 and in part by Krasnoyarsk Regional Scientific Foundation (KRSF), Grants 17G057, 18G148 and 18G011. DAB and AAD acknowledge the Russian Science Support Foundation.
Предметные рубрики: HIGH-TEMPERATURE SUPERCONDUCTORS
CRITICAL-CURRENT DENSITY
BI-2223 TAPES
BI2223
SILVER
DISCS
(BI
Ключевые слова (''Своб.индексиров.''): building materials--calcium--copper--crystallites--diamagnetic materials--lead--lead alloys--magnetic anisotropy--magnetic properties--nanocrystalline alloys--silver--textures--transport properties--bi-2223--bulk samples--degree of textures--diamagnetic responses--liquid mediums--magnetic and transport properties--magnetic measurements--room temperatures--ceramic materials
Аннотация: A new method of preparation of bulk textured Bi2223 ceramics and Bi2223 + Ag composites, based on room temperature pressing of foamed precursor (Bi2223, Bi2223 + Ag) in a liquid medium, is proposed. SEM and XRD data prove a high degree of texture of the bulk samples obtained. Magnetic measurements performed in directions H parallel to c-axis and H parallel to a-b-planes of Bi2223 crystallites demonstrates anisotropy of magnetization confirming the texture of the ceramics. The materials obtained possess large diamagnetic response in the direction H parallel to a-b-planes of Bi2223 crystallites at both 77.4 and 4.2 K.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Markel V. A., Pustovit V. N., Karpov S. V., Obuschenko A. V., Gerasimov V. S., Isaev I. L.
Заглавие : Electromagnetic density of states and absorption of radiation by aggregates of nanospheres with multipole interactions
Место публикации : Phys. Rev. B: AMER PHYSICAL SOC, 2004. - Vol. 70, Is. 5. - Ст.54202. - ISSN 1098-0121, DOI 10.1103/PhysRevB.70.054202
Примечания : Cited References: 81
Предметные рубрики: DISCRETE-DIPOLE APPROXIMATION
ENHANCED RAMAN-SCATTERING
METAL FRACTAL CLUSTERS
OPTICAL-PROPERTIES
SELECTIVE PHOTOMODIFICATION
DISORDERED CLUSTERS
NUMERICAL-SIMULATION
SPECTRAL DEPENDENCE
PARTICULATE MATTER
LIGHT-SCATTERING
Ключевые слова (''Своб.индексиров.''): carbon--iron--palladium--silver--article--dipole--electromagnetic field--geometry--mathematical analysis--molecular interaction--nanoparticle--radiation absorption
Аннотация: We calculate the quasistatic electromagnetic density of states for aggregates of touching spheres, in particular, linear chains and computer-generated random fractal aggregates. Multipole moments with orders of up to L=64 are taken into account for random aggregates with the number of particles of up to N=100 and up to L=8000 for linear chains. Extensive comparisons with the dipole approximation and geometrical cluster renormalization method are performed. Extinction spectra are calculated for several metals and black carbon. Long wavelength electromagnetic properties of fractal aggregates are considered in details.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpov S. V., Popov A. K., Slabko V. V.
Заглавие : Photochromic reactions in silver nanocomposites with a fractal structure and their comparative characteristics
Место публикации : Tech. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2003. - Vol. 48, Is. 6. - P749-756. - ISSN 1063-7842, DOI 10.1134/1.1583830
Примечания : Cited References: 24
Предметные рубрики: SMALL-PARTICLE COMPOSITES
OPTICAL-PROPERTIES
COLLOIDAL SILVER
SELECTIVE PHOTOMODIFICATION
CLUSTERS
LIGHT
Аннотация: Conditions for a change in the polarization selectivity of dips in the plasmon absorption spectra of fractal silver nanocomposites irradiated by pulsed laser radiation are studied. The energy thresholds of the polarization selectivity are evaluated, and the polarization and spectral threshold characteristics are compared. Mechanisms behind the correlation between the fractal structure of the nanocomposites, on the one hand, and their optical and photochromic properties, on the other hand, are discussed. (C) 2003 MAIK "Nauka / Interperiodica".
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpov S. V., Gerasimov V. S., Isaev I. L., Markel V. A.
Заглавие : Spectroscopic studies of fractal aggregates of silver nanospheres undergoing local restructuring
Место публикации : J. Chem. Phys.: AMER INST PHYSICS, 2006. - Vol. 125, Is. 11. - Ст.111101. - ISSN 0021-9606, DOI 10.1063/1.2229202
Примечания : Cited References: 30
Предметные рубрики: ENHANCED RAMAN-SCATTERING
SMALL-PARTICLE COMPOSITES
OPTICAL-PROPERTIES
DISORDERED CLUSTERS
NONLINEAR OPTICS
LOCALIZATION
NANOPARTICLES
EIGENMODES
BOUNDS
Ключевые слова (''Своб.индексиров.''): large-scale fractal geometry--nonlinear optical responses--restructuring--silver nanospheres--aggregates--colloids--electromagnetic fields--fractals--nonlinear optics--sampling--spectroscopic analysis--silver
Аннотация: We present an experimental spectroscopic study of large random colloidal aggregates of silver nanoparticles undergoing local restructuring. We argue that such well-known phenomena as strong fluctuation of local electromagnetic fields, appearance of "hot spots" and enhancement of nonlinear optical responses depend on the local structure on the scales of several nanosphere diameters, rather than the large-scale fractal geometry of the sample. (c) 2006 American Institute of Physics.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rautian S. G., Safonov V. P., Chubakov P. A., Shalaev V.M., Shtokman M. I.
Заглавие : Surface-enhanced parametric scattering of light by silver clusters
Место публикации : JETP Letters. - 1988. - Vol. 47, Is. 4. - P.243-246. - ISSN 0021-3640
Примечания : Cited References: 6
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vetrov S. Y., Shabanov V. F.
Заглавие : Dissipative effects of the interaction of crystal-lattice surface with medium
Разночтения заглавия :авие SCOPUS: DISSIPATIVE EFFECTS OF THE INTERACTION OF CRYSTAL LATTICE SURFACE WITH MEDIUM
Место публикации : Phys. Status Solidi B. - 1987. - Vol. 140, Is. 1. - P.103-112. - ISSN 0370-1972
Примечания : Cited References: 14
Ключевые слова (''Своб.индексиров.''): electric conductivity - measurements--interferometry--silicon compounds - thin films--x-rays - diffraction--dissipative effects--multiple-reflection interferometry--silver and alloys
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bikbaev R. G., Vetrov S. Ya., Timofeev I. V.
Заглавие : The optical Tamm states at the interface between a photonic crystal and nanoporous silver
Место публикации : J. Opt.: IOP, 2017. - Vol. 19, Is. 1. - Ст.015104. - ISSN 20408978 (ISSN), DOI 10.1088/2040-8986/19/1/015104
Примечания : 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.
Ключевые слова (''Своб.индексиров.''): photonic crystal--nanoporous silver--optical tamm state--effective permittivity
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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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gerasimov V. S., Ershov A. E., Karpov S. V., Gavrilyuk A. P., Zakomirnyi V. I., Rasskazov I. L., Agren H., Polyutov S. P.
Заглавие : Thermal effects in systems of colloidal plasmonic nanoparticles in high-intensity pulsed laser fields [Invited]
Место публикации : Opt. Mater. Express: Optical Society of America, 2017. - Vol. 7, Is. 2. - P.555-568. - ISSN 21593930 (ISSN), DOI 10.1364/OME.7.000555
Примечания : 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.
Ключевые слова (''Своб.индексиров.''): 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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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rudakova N. V., Timofeev I. V., Pankin P. S., Vetrov S. Ya.
Заглавие : Polarization-preserving anisotropic mirror on the basis of metal–dielectric nanocomposite
Место публикации : Bull. Russ. Acad. Sci. Phys.: Allerton Press, 2017. - Vol. 81, Is. 1. - P.5-9. - ISSN 10628738 (ISSN), DOI 10.3103/S1062873817010257
Примечания : Cited References: 11. - The reported study was funded by the Ministry of Education and Science of the Russian Federation, project no. 3.1211.2017/PCH; SB RAS no. II.2P (0358-2015-0010); Scholarship of the President of the Russian Federation no. SP-227.2016.5; RFBR and Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project no. 16-42-243065.
Ключевые слова (''Своб.индексиров.''): anisotropy--metal nanoparticles--mirrors--nanocomposites--nanoparticles--polarization--silver--a-plane--reflected light--reflection spectra--transparent matrix--metallic matrix composites
Аннотация: The model of a polarization-preserving anisotropic mirror is proposed. The mirror is a plane boundary of a metal–dielectric nanocomposite that consists of silver spheroidal nanoparticles dispersed in a transparent matrix. The dependence of reflection spectra on the shape of the nanoparticles is studied. It is shown that in one region of the spectrum, the mirror preserves the sign of polarization in the reflected light. © 2017, Allerton Press, Inc.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Puzir’ A. P., Minakov A. V., Burov A. E., Zharkov S. M., Maksimov N. G., Pryazhnikov M. I.
Заглавие : The effect of silver ions electrolytically introduced into colloidal nanodiamond solution on its viscosity and thermal conductivity
Место публикации : Colloid J.: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 79, Is. 2. - P.258-263. - ISSN 1061933X (ISSN), DOI 10.1134/S1061933X17020119
Примечания : Cited References: 22
Ключевые слова (''Своб.индексиров.''): dispersions--ions--metal ions--nanodiamonds--nanoparticles--silver--viscosity--a-stable--detonation nanodiamond--diamond nano-particles--effect of silvers--silver concentration--silver ions--thermal conductivity
Аннотация: Experimental data have been presented on the influence of silver on the viscosity and thermal conductivity of a dispersion of diamond nanoparticles. A stable dispersion (5 wt %) of detonation nanodiamond particles has been used in the experiments. Silver ions have been introduced electrolytically into the dispersion of diamond nanoparticles. Silver concentration was not higher than 0.05 wt %. It has been shown that the introduction of silver ions significantly affects the thermal conductivity and viscosity of the dispersion.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ershov A. E., Gerasimov V. S., Gavrilyuk A. P., Karpov S. V.
Заглавие : Surface plasmon resonances in liquid metal nanoparticles
Место публикации : Appl. Phys. B: Springer, 2017. - Vol. 123, Is. 6. - Ст.182. - ISSN 09462171 (ISSN), DOI 10.1007/s00340-017-6755-2
Примечания : 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.
Ключевые слова (''Своб.индексиров.''): 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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