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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rasskazov I. L., Karpov S. V., Markel V. A.
Заглавие : Surface plasmon polaritons in curved chains of metal nanoparticles
Коллективы : 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]
Место публикации : Phys. Rev. B: American Physical Society, 2014. - Vol. 90, Is. 7. - Ст.75405. - ISSN 1098-0121, DOI 10.1103/PhysRevB.90.075405. - ISSN 1550-235X
Примечания : 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.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rasskazov I. L., Karpov S. V., Markel V. A.
Заглавие : Waveguiding properties of short linear chains of nonspherical metal nanoparticles
Коллективы : 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]
Место публикации : J. Opt. Soc. Am. B: Optical Society of America, 2014. - Vol. 31, Is. 12. - P.2981-2989. - ISSN 0740-3224, DOI 10.1364/JOSAB.31.002981. - ISSN 1520-8540
Примечания : 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.
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rasskazov I. L., Karpov S. V., Panasyuk G. Y., Markel V. A.
Заглавие : Overcoming the adverse effects of substrate on the waveguiding properties of plasmonic nanoparticle chains
Место публикации : J. Appl. Phys.: American Institute of Physics, 2016. - Vol. 119, Is. 4. - Ст.043101. - ISSN 00218979 (ISSN), DOI 10.1063/1.4940415
Примечания : 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.
Предметные 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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