EELS and optical response of a noble metal nanoparticle in the frame of a discrete dipole approximation

N. Geuquet; L. Henrard

doi:10.1016/j.ultramic.2010.01.013

EELS and optical response of a noble metal nanoparticle in the frame of a discrete dipole approximation

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

Surface plasmons of noble metal nanoparticles have recently been studied by Electron Energy-Loss Spectroscopy (EELS) performed in an electron microscope. We present here the basic formalism for EELS simulations in a Discrete Dipole Approximation (DDA) framework for such surface excitations. We compare EELS data and optical properties of a silver triangular nanoprism and show that the spatial variation of surface plasmon excitation probabilities allows to discriminate modes of similar energies. We also emphasize the importance of the substrate polarization effect to reliably describe experimental data. © 2010 Elsevier B.V.

langue originale	Anglais
Pages (de - à)	1075-1080
Nombre de pages	6
journal	Ultramicroscopy
Volume	110
Numéro de publication	8
Les DOIs	https://doi.org/10.1016/j.ultramic.2010.01.013
Etat de la publication	Publié - 1 juil. 2010

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10.1016/j.ultramic.2010.01.013

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1 Participation à une conférence, un congrès

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Henrard, L. (Conférencier)
4 sept. 2013 → 6 sept. 2013
Activité: Participation ou organisation d'un événement › Participation à une conférence, un congrès

Contient cette citation

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abstract = "Surface plasmons of noble metal nanoparticles have recently been studied by Electron Energy-Loss Spectroscopy (EELS) performed in an electron microscope. We present here the basic formalism for EELS simulations in a Discrete Dipole Approximation (DDA) framework for such surface excitations. We compare EELS data and optical properties of a silver triangular nanoprism and show that the spatial variation of surface plasmon excitation probabilities allows to discriminate modes of similar energies. We also emphasize the importance of the substrate polarization effect to reliably describe experimental data. {\textcopyright} 2010 Elsevier B.V.",

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AU - Henrard, L.

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N2 - Surface plasmons of noble metal nanoparticles have recently been studied by Electron Energy-Loss Spectroscopy (EELS) performed in an electron microscope. We present here the basic formalism for EELS simulations in a Discrete Dipole Approximation (DDA) framework for such surface excitations. We compare EELS data and optical properties of a silver triangular nanoprism and show that the spatial variation of surface plasmon excitation probabilities allows to discriminate modes of similar energies. We also emphasize the importance of the substrate polarization effect to reliably describe experimental data. © 2010 Elsevier B.V.

AB - Surface plasmons of noble metal nanoparticles have recently been studied by Electron Energy-Loss Spectroscopy (EELS) performed in an electron microscope. We present here the basic formalism for EELS simulations in a Discrete Dipole Approximation (DDA) framework for such surface excitations. We compare EELS data and optical properties of a silver triangular nanoprism and show that the spatial variation of surface plasmon excitation probabilities allows to discriminate modes of similar energies. We also emphasize the importance of the substrate polarization effect to reliably describe experimental data. © 2010 Elsevier B.V.

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EELS and optical response of a noble metal nanoparticle in the frame of a discrete dipole approximation

Résumé

Accès au document

Autres fichiers et liens

Empreinte digitale

Résultat de recherche

Tuning the Plasmonic Response up: Hollow Cuboid Metal Nanostructures

Local plasmonic studies on individual core-shell gold-silver and pure gold nano-bipyramids

Morphological tunability of the plasmonic response: From hollow gold nanoparticles to gold nanorings

Activités

Recent Advances in Spectro­microscopy: Experimental and Theoretical Tools

Contient cette citation

Recent Advances in Spectromicroscopy: Experimental and Theoretical Tools