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Карпов, Сергей Васильевич.
Моделирование условий синтеза оптических нановолноводов из цепочек сферических металлических наночастиц методом электростатической функционализации технологической подложки / С. В. Карпов, И.Л. Рассказов // Коллоид. журн. - 2013. - Т. 75, № 3. - С. 308-318DOI 10.7868/S0023291213030099
Аннотация: Для получения упорядоченных структур из близкорасположенных плазмонно-резонансных наночастиц предложен электростатический метод функционализации подложек, обеспечивающий избирательное осаждение на них наночастиц из объема коллоидной системы. Метод основан на размещении с обратной стороны подложки металлического наношаблона требуемой конфигурации, на который подается электрический потенциал. Разработана математическая модель, позволяющая определить соответствие условиям реального эксперимента тех параметров системы, которые обеспечивают осаждение металлических наночастиц в одномерные упорядоченные структуры на подложку из объема золя в неоднородном электрическом поле, создаваемом наношаблоном. С помощью модели броуновской динамики исследована зависимость степени дефектности синтезируемых цепочек от физико-химических и электрических параметров системы, определяющая пригодность такого типа структур для передачи оптического возбуждения на частоте поверхностного плазмона частиц. Приведены примеры расчетов спектральных и трансмиссионных свойств нановолноводов данного типа.

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Переводная версия Simulation of conditions for fabrication of optical nanowaveguides in the form of chains of spherical metal nanoparticles by electrostatic functionalization of the process substrate. - [Б. м. : б. и.]

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

Доп.точки доступа:
Рассказов, Илья Леонидович; Rasskazov, I. L.; Karpov S.V.
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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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    Maksimov, D. N.
    Symmetry breaking in binary chains with nonlinear sites / D. N. Maksimov, A. F. Sadreev // Phys. Rev. E. - 2013. - Vol. 88, Is. 3. - Ст. 032901. - P. , DOI 10.1103/PhysRevE.88.032901 . - ISSN 1539-3755
   Перевод заглавия: Нарушение симметрии в бинарных цепочках с нелинейными узлами
Аннотация: We consider a system of two or four nonlinear sites coupled with binary chain waveguides. When a monochromatic wave is injected into the first (symmetric) propagation channel, the presence of cubic nonlinearity can lead to symmetry breaking, giving rise to emission of antisymmetric wave into the second (antisymmetric) propagation channel of the waveguides. We found that in the case of nonlinear plaquette, there is a domain in the parameter space where neither symmetry-preserving nor symmetry-breaking stable stationary solutions exit. As a result, injection of a monochromatic symmetric wave gives rise to emission of nonsymmetric satellite waves with energies differing from the energy of the incident wave. Thus, the response exhibits nonmonochromatic behavior. В© 2013 American Physical Society.

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Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Максимов, Дмитрий Николаевич
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Рассказов, Илья Леонидович.
Nondecaying surface plasmon polaritons in linear chains of silver nanospheroids / I. L. Rasskazov, S. V. Karpov, V. A. Markel // Opt. Lett. - 2013. - Vol. 38, Is. 22. - P. 4743-4746, DOI 10.1364/OL.38.004743 . - ISSN 0146-9592
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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Держатели документа:
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Markel, V. A.; Rasskazov, I. L.
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Рассказов, Илья Леонидович.
Propagation of surface plasmon polaritons in curved 2D chains of nanospheroids / I. L. Rasskazov, V. A. Markel, S. V. Karpov // ICONO/LAT 2013 : Advance conference program. - 2013. - P.

,
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Доп.точки доступа:
Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.; Российская академия наук; Московский государственный университет им. М.В. Ломоносова; International Conference on Coherent and Nonlinear Optics(2013 ; June ; 18-22 ; Moscow); International Conference on Lasers, Applications, and Technologies(2013 ; June ; 18-22 ; Moscow)
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Gurevich, Y. L.
Self-assembly of superparamagnetic ferrihydrite nanoparticles / Y. L. Gurevich, Yu. I. Mankov, R. G. Khlebopros // Dokl. Phys. - 2013. - Vol. 58, Is. 11. - P. 478-481, DOI 10.1134/S1028335813110104. - Cited References: 15. - This work was supported by the Russian Foundation for Basic Research, project nos. 08-08-00427_a and 10-08-00278_a, and by the Siberian Branch, Russian Academy of Sciences, Integration project no. 21. . - ISSN 1028-3358

РУБ Mechanics + Physics, Multidisciplinary
Рубрики:
CHAINS
CLUSTERS
Аннотация: A study was conducted to estimate the possibility of formation of chains of superparamagnetic nanoparticles of iron oxyhydroxides synthesized in a bacteria culture. The self-assembly of biogenic nanoparticles distinguished by low values of magnetization and small sizes is assumed to proceed due to the forces of magnetic dipole dipole interaction as an initial mechanism of aggregation and exchange-interaction forces, which provide the stability of chains. The microphotographs demonstrate the self-assembly of anisotropic cobalt-doped ferrihydrite nanoparticles in aggregates of ellipsoidal shape with sizes of about 550 × 300 nm and a platelike shape of 50-100 nm thick. The aggregates, in turn, are combined from blocks, which include a restricted number of nanoparticles of about 5 nm in diameter and have the shape of rods of 50-100 × 12 nm in size. The energy of degaussing fields of chains is reasonably high, which forces them to form two and three dimensional structures in which the compensation of such fields is provided.

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Публикация на русском языке Самосборка суперпарамагнитных наночастиц ферригидрита. - [S. l. : s. n.]

Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
Russian Acad Sci, Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia;

Доп.точки доступа:
Mankov, Yu.I.; Маньков, Юрий Иннокентьевич; Khlebopros, R. G.; Хлебопрос, Рэм Григорьевич; Russian Foundation for Basic Research [08-08-00427_a, 10-08-00278_a]; Siberian Branch, Russian Academy of Sciences, Integration project [21]
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Rasskazov, I. L.
Surface plasmon polaritons in curved chains of metal nanoparticles / I. L. Rasskazov, S. V. Karpov, V. A. Markel // Phys. Rev. B. - 2014. - Vol. 90, Is. 7. - Ст. 75405, DOI 10.1103/PhysRevB.90.075405. - Cited References: 34. - This research was supported in part by the US National Science Foundation under Grant DMS1216970, by the Russian Academy of Sciences under the Grants 24.29, 24.31, III. 9.5, 43, SFU (101), and also by the Russian Ministry of Education and Science under the Contract 1792. . - ISSN 1098-0121. - ISSN 1550-235X

РУБ Physics, Condensed Matter
Рубрики:
LINEAR-CHAINS
   DISPERSION-RELATIONS
   ARRAYS
   RESONANCES
   FIELD
Аннотация: We investigate numerically the propagation of steady-state monochromatic surface plasmon polaritons (SPPs) in curved chains of metal nanoparticles of various spheroidal shapes. We discuss the SPP propagation (decay of the amplitude), the polarization conversion due to coupling of orthogonally polarized SPPs, and the electromagnetic field localization in the near-field vicinity of a chain.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk, Russia
Siberian State Aerosp Univ, LV Kirensky Phys Inst, Krasnoyarsk, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Markel, V. A.; Рассказов, Илья Леонидович; US National Science Foundation [DMS1216970]; Russian Academy of Sciences [24.29, 24.31, III. 9.5, 43, SFU (101)]; Russian Ministry of Education and Science [1792]
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Rasskazov, I. L.
Waveguiding properties of short linear chains of nonspherical metal nanoparticles [Текст] / I. L. Rasskazov, S. V. Karpov, V. A. Markel // J. Opt. Soc. Am. B. - 2014. - Vol. 31, Is. 12. - P. 2981-2989, DOI 10.1364/JOSAB.31.002981. - Cited References: 39. - This research was supported in part by the U.S. National Science Foundation under Grant DMS1216970; by the Russian Academy of Sciences under Grants 24.29, 24.31, III.9.5, 43, and SFU (101); and by the Russian Ministry of Education and Science under Contract 1792. . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
DISPERSION-RELATIONS
   MODES
   SCATTERING
   ARRAYS
   GUIDES
   LIGHT
   GAIN
Аннотация: We study numerically the discrete dispersion relations and waveguiding properties of relatively short linear chains of spherical and spheroidal silver nanoparticles. Simulations are based on the Drude model for the dielectric permittivity of metal and on the dipole approximation for the electromagnetic interaction of particles. We also simulate the dynamics of femtosecond optical pulse propagation along such chains. In the case that we consider (10 particles per chain), reflections from the chain terminals play a significant detrimental role. We show that dissipative traps can be used to reduce the effects of reflections. We also show that chains composed of oblate spheroids with sufficiently small aspect ratio (nanodisks) have better waveguiding properties when compared to chains made of particles with other spheroidal shapes. This includes a slower rate of decay, larger group velocity, and larger bandwidth.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660041, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Markel, V. A.; Рассказов, Илья Леонидович; U.S. National Science Foundation [DMS1216970]; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43]; SFU [101]; Russian Ministry of Education and Science [1792]
}
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Rasskazov, I. L.
Surface plasmon polaritons in linear chains of silver nanospheroids / I. L. Rasskazov, S. V. Karpov, V. V. Markel // 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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Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Markel, V. V.; Рассказов, Илья Леонидович; Edition of the International Conference Series on Laser-light and Interactions with Particles (10 ; 2014 ; Aug. ; 25-29 ; Marseille, France)
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10.

Crystal structures of new potassium silicates and aluminosilicates of Sm, Tb, Gd, and Yb and their relation to the armstrongite (CaZr(Si6O15)·3H2O) structure / V. K. Taroev [et al.] // J. Solid State Chem. - 2015. - Vol. 227. - P. 196-203, DOI 10.1016/j.jssc.2015.03.004. - Cited References:27. - We appreciate the financial support by the Russian Fund of Basic Research under grant 10-05-00344-a. We thank the two anonymous reviewers for their helpful comments and suggestions and Ms. Schroeder (KIT-PKM) for improving the English of the manuscript. . - ISSN 0022. - ISSN 1095-726X. -

РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical
Рубрики:
BOND-VALENCE PARAMETERS
CHAINS
SYSTEM
Кл.слова (ненормированные):
Hydrothermal synthesis -- REE-potassium silicates -- X-ray diffraction -- Crystal structure refinement
Аннотация: Silicates of composition K7.81Sm3Si12O32(OH)0.81·0.77H2O and K7Tb3Si12O32·1.36H2O, with the space group P 1 ¯ and unit cell parameters of a=6.9218(3), b=11.4653(4), c=11.6215(4) Å, α=88.063(3)°, β=88.449(3)°, γ=79.266(3)° and a=6.872(3), b=11.440(5), c=11.542(6) Å, α=88.19(4)°, β=88.86(4)°, γ=79.65(4)°, respectively, were synthesized under hydrothermal conditions. Both crystal structures were determined from twinned crystals, and can be idealized to a composition of K7Ln3Si12O32 (KOH)x(H2O)(2−x) (Ln=Sm, Tb), which is closely related to K8Nd3Si12O32(OH). Crystals of the aluminosilicates K2GdAlSi4O12·0.25H2O and K2SmAlSi4O12·0.375H2O prepared by the same method possess monoclinic symmetry with the space group C2/c. The corresponding unit cell parameters are: a=26.67(1), b=7.294(3), c=14.835(6) Å, β=123.44(3)°; and a=26.7406(9), b=7.3288(2), c=14.8498 (6) Å, β=123.514(1)°, respectively. A new type of silicate anion that forms tubes was detected in the K4Yb2Si8O21 structure. K4Yb2Si8O21 is of monoclinic symmetry with the space group C2/c. The unit cell parameters are: a=17.440(2), b=11.786(1), c=12.802 (2) Å, and β=130.902(1)°. The structure is a mixed framework of tubes formed by silica-oxygen tetrahedra connected by pairs of edge sharing Yb-octahedra. The relation of the silicate layers and frameworks encountered in these compounds to the armstrongite silicate framework is discussed.

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Держатели документа:
RAS, Ap Vinogradov Geochem Inst, Siberian Branch, Irkutsk 664033, Russia
Natl Res Irkutsk State Tech Univ, Irkutsk 664054, Russia
RAS, Inst Earth Crust, Siberian Branch, Irkutsk 664054, Russia
Univ Hamburg, Mineral Petrog Inst, D-20146 Hamburg, Germany
Karlsruhe Inst Technol, ANKA Synchrotron Radiat Facil, D-76344 Eggenstein Leopoldshafen, Germany
RAS, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Taroev, V. K.; Kashaev, A. A.; Malcherek, T.; Goettlicher, J.; Kaneva, E. V.; Vasiljev, A. D.; Васильев, Александр Дмитриевич; Suvorova, L. F.; Suvorova, D. S.; Tauson, V. L.; Russian Fund of Basic Research [10-05-00344-a]
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