Efficient modal-expansion discrete-dipole approximation: Application to the simulation of optical extinction and electron energy-loss spectroscopies

Stéphane-Olivier Guillaume, F. Javier García De Abajo, Luc Henrard

Résultats de recherche: Contribution à un journal/une revueArticle

1 Downloads (Pure)

Résumé

An efficient procedure is introduced for the calculation of the optical response of individual and coupled metallic nanoparticles in the framework of the discrete-dipole approximation (DDA). We introduce a modal expansion in the basis set of discrete dipoles and show that a few suitably selected modes are sufficient to compute optical spectra with reasonable accuracy, thus reducing the required numerical effort relative to other DDA approaches. Our method offers a natural framework for the study of localized plasmon modes, including plasmon hybridization. As a proof of concept, we investigate optical extinction and electron energy-loss spectra of monomers, dimers, and quadrumers formed by flat silver squares. This method should find application to the previously prohibited simulation of complex particle arrays.

langue originaleAnglais
Numéro d'article245439
Nombre de pages10
journalPhysical Review B
Volume88
Numéro de publication24
Les DOIs
étatPublié - 26 déc. 2013

Empreinte digitale

Electron energy loss spectroscopy
Silver
Dimers
Energy dissipation
extinction
Monomers
energy dissipation
electron energy
dipoles
Nanoparticles
expansion
Electrons
approximation
spectroscopy
simulation
energy
optical spectrum
monomers
silver
dimers

Citer ceci

@article{ebe43b3b8cc74e6f821914dc12b859c2,
title = "Efficient modal-expansion discrete-dipole approximation: Application to the simulation of optical extinction and electron energy-loss spectroscopies",
abstract = "An efficient procedure is introduced for the calculation of the optical response of individual and coupled metallic nanoparticles in the framework of the discrete-dipole approximation (DDA). We introduce a modal expansion in the basis set of discrete dipoles and show that a few suitably selected modes are sufficient to compute optical spectra with reasonable accuracy, thus reducing the required numerical effort relative to other DDA approaches. Our method offers a natural framework for the study of localized plasmon modes, including plasmon hybridization. As a proof of concept, we investigate optical extinction and electron energy-loss spectra of monomers, dimers, and quadrumers formed by flat silver squares. This method should find application to the previously prohibited simulation of complex particle arrays.",
author = "St{\'e}phane-Olivier Guillaume and {De Abajo}, {F. Javier Garc{\'i}a} and Luc Henrard",
year = "2013",
month = "12",
day = "26",
doi = "10.1103/PhysRevB.88.245439",
language = "English",
volume = "88",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "2469-9950",
publisher = "American Institute of Physics Publising LLC",
number = "24",

}

Efficient modal-expansion discrete-dipole approximation: Application to the simulation of optical extinction and electron energy-loss spectroscopies. / Guillaume, Stéphane-Olivier; De Abajo, F. Javier García; Henrard, Luc.

Dans: Physical Review B , Vol 88, Numéro 24, 245439, 26.12.2013.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Efficient modal-expansion discrete-dipole approximation: Application to the simulation of optical extinction and electron energy-loss spectroscopies

AU - Guillaume, Stéphane-Olivier

AU - De Abajo, F. Javier García

AU - Henrard, Luc

PY - 2013/12/26

Y1 - 2013/12/26

N2 - An efficient procedure is introduced for the calculation of the optical response of individual and coupled metallic nanoparticles in the framework of the discrete-dipole approximation (DDA). We introduce a modal expansion in the basis set of discrete dipoles and show that a few suitably selected modes are sufficient to compute optical spectra with reasonable accuracy, thus reducing the required numerical effort relative to other DDA approaches. Our method offers a natural framework for the study of localized plasmon modes, including plasmon hybridization. As a proof of concept, we investigate optical extinction and electron energy-loss spectra of monomers, dimers, and quadrumers formed by flat silver squares. This method should find application to the previously prohibited simulation of complex particle arrays.

AB - An efficient procedure is introduced for the calculation of the optical response of individual and coupled metallic nanoparticles in the framework of the discrete-dipole approximation (DDA). We introduce a modal expansion in the basis set of discrete dipoles and show that a few suitably selected modes are sufficient to compute optical spectra with reasonable accuracy, thus reducing the required numerical effort relative to other DDA approaches. Our method offers a natural framework for the study of localized plasmon modes, including plasmon hybridization. As a proof of concept, we investigate optical extinction and electron energy-loss spectra of monomers, dimers, and quadrumers formed by flat silver squares. This method should find application to the previously prohibited simulation of complex particle arrays.

UR - http://www.scopus.com/inward/record.url?scp=84892399377&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.88.245439

DO - 10.1103/PhysRevB.88.245439

M3 - Article

VL - 88

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 2469-9950

IS - 24

M1 - 245439

ER -