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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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    Bulgakov, E. N.
    Light trapping above the light cone in a one-dimensional array of dielectric spheres / E. N. Bulgakov, A. F. Sadreev // Phys. Rev. A. - 2015. - Vol. 92, Is. 2. - Ст. 023816, DOI 10.1103/PhysRevA.92.023816. - Cited References:62. - The work was supported by the Russian Science Foundation through Grant No. 14-12-00266. We acknowledge discussions with D. N. Maksimov. . - ISSN 1050. - ISSN 1094-1622
   Перевод заглавия: Захват света выше светового конуса в одномерной цепочке диэлектрических сфер

РУБ Optics + Physics, Atomic, Molecular & Chemical
Рубрики:
CLASSICAL ELECTROMAGNETIC SCATTERING
   ENERGY PHOTON DIFFRACTION
   BLOCH SURFACE-WAVES
   RADIATION CONTINUUM
   MULTIPLE-SCATTERING
   CONSUMMATE SOLUTION
   LINEAR ARRAYS
   BOUND-STATES
   MODES
   GUIDES
Аннотация: We demonstrate bound states in the first TE and TM diffraction continua (BSC) in a linear periodic array of dielectric spheres in air above the light cone. We classify the BSCs according to the symmetry specified by the azimuthal number m, the Bloch wave vector β directed along the array, and polarization. The most simple symmetry-protected TE and TM polarized BSCs have m=0 and β=0 and occur in a wide range of the radii of the spheres and dielectric constants. More complicated BSCs with m≠0 and β=0 exist only for a selected radius of the spheres at a fixed dielectric constant. We also find robust Bloch BSCs with β≠0 and m=0. We present also the BSCs embedded into two and three diffraction continua. We show that the BSCs can be easily detected by the collapse of the Fano resonance for scattering of electromagnetic plane waves by the array.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia.
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич; Russian Science Foundation [14-12-00266]
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Overcoming the adverse effects of substrate on the waveguiding properties of plasmonic nanoparticle chains / I. L. Rasskazov [et al.] // J. Appl. Phys. - 2016. - Vol. 119, Is. 4. - Ст. 043101, DOI 10.1063/1.4940415. - Cited References: 43. - This work has been carried out thanks to the support of the A*MIDEX project (No. ANR-11-IDEX-0001-02) funded by the “Investissements d'Avenir” French Government program, managed by the French National Research Agency (ANR) and was also supported in part by the U.S. National Science Foundation under Grant No. DMS1216970 and by the Ministry of Education and Science of the Russian Federation under Contract No. 1792. . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
LINEAR-CHAINS
   DISPERSION-RELATIONS
   ARRAYS
   RESONANCES
   GUIDES
   NANOSPHERES
   MODES
   FIELD
   POLARITONS
   PARTICLES
Аннотация: We have studied numerically the propagation of surface plasmon polaritons (SPPs) in linear periodic chains of plasmonic nanoparticles of different shapes. The chains are deposited on top of a thick dielectric substrate. While in many commonly considered cases the substrate tends to suppress the SPP propagation, we have found that this adverse effect is practically absent in the case when the nanoparticles have the shape of oblate spheroids with sufficiently small aspect ratio (e.g., nanodisks) whose axes of symmetry coincide with the axis of the chain. © 2016 AIP Publishing LLC.

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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
L. V. Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Aerospace Systems Dirct., Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, United States
Aix-Marseille Universite, CNRS, Centrale Marseille, Institut Fresnel UMR 7249, Marseille, France
Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States

Доп.точки доступа:
Rasskazov, I. L.; Рассказов, Илья Леонидович; Karpov, S. V.; Карпов, Сергей Васильевич; Panasyuk, G. Y.; Markel, V. A.
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Bulgakov, E. N.
The effect of bound states in microwave waveguides on electromagnetic wave propagation / E. N. Bulgakov, A. F. Sadreev // Tech. Phys. - 2001. - Vol. 46, Is. 10. - P. 1281-1290, DOI 10.1134/1.1412064. - Cited References: 15 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
RADIATION-FIELD
   HALL RESISTANCE
   QUANTUM WIRES
   GUIDES
Аннотация: The transmission of a TE microwave field with a frequency omega through Gamma, T, and X waveguide junctions filled with a ferromagnetic is considered. These junctions are known to have bound states with below-cutoff frequencies. A probing microwave radiation with a frequency Omega applied to the scattering region generates magnetic oscillations with frequencies omega + n Omega (where n = 0, +/-1, +/-2, ...), which resonantly combine with the bound waveguide states. This effect provides for a new method of studying bound waveguide states and efficiently controlling the transmission of microwave radiation. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
ИФ СО РАН
Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Dept. of Phys. and Msrmt. Technology, Linkoping University, S-581 83 Linkoping, Sweden

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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