Coupled dipole approximation across the Γ-point in a finite-sized nanoparticle array

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@article{001737ce369b479487986f8e8da0124d,
title = "Coupled dipole approximation across the Γ-point in a finite-sized nanoparticle array",
abstract = "We study the response of a finite-sized nanoparticle array to an incident field in the vicinity of the Γ-point of the lattice. Using the coupled dipole approximation, we find that the dipole distributions can be strongly inhomogeneous and that strong modulations appear as the energy is above the Γ-point. We highlight how this is reflected in real-space extinction efficiencies as well as in radiation patterns from the finite-sized array.",
keywords = "plasmonics, nanoparticle array, coupled dipole approximation",
author = "J.-P. Martikainen and Antti Moilanen and P{\"a}ivi T{\"o}rm{\"a}",
year = "2017",
month = "2",
day = "20",
doi = "10.1098/rsta.2016.0316",
language = "English",
volume = "375",
journal = "PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A: MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES",
issn = "1364-503X",
number = "2090",

}

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TY - JOUR

T1 - Coupled dipole approximation across the Γ-point in a finite-sized nanoparticle array

AU - Martikainen, J.-P.

AU - Moilanen, Antti

AU - Törmä, Päivi

PY - 2017/2/20

Y1 - 2017/2/20

N2 - We study the response of a finite-sized nanoparticle array to an incident field in the vicinity of the Γ-point of the lattice. Using the coupled dipole approximation, we find that the dipole distributions can be strongly inhomogeneous and that strong modulations appear as the energy is above the Γ-point. We highlight how this is reflected in real-space extinction efficiencies as well as in radiation patterns from the finite-sized array.

AB - We study the response of a finite-sized nanoparticle array to an incident field in the vicinity of the Γ-point of the lattice. Using the coupled dipole approximation, we find that the dipole distributions can be strongly inhomogeneous and that strong modulations appear as the energy is above the Γ-point. We highlight how this is reflected in real-space extinction efficiencies as well as in radiation patterns from the finite-sized array.

KW - plasmonics

KW - nanoparticle array

KW - coupled dipole approximation

U2 - 10.1098/rsta.2016.0316

DO - 10.1098/rsta.2016.0316

M3 - Article

VL - 375

JO - PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A: MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES

JF - PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A: MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES

SN - 1364-503X

IS - 2090

M1 - 0316

ER -

ID: 11088988