On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays

Sylvain Vedraine; Renjie Hou; Peter R. Norton; François Lagugné-Labarthet

doi:10.1364/OE.22.013308

On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays

Sylvain Vedraine ¹ Renjie Hou ¹ Peter R. Norton ¹ François Lagugné-Labarthet ¹

1 Department of Chemistry, University of Western Ontario

Abstract : The behavior of the electromagnetic field interaction with gold nanotriangles organized in bow-tie arrays is investigated. A side-by-side comparison between the measured absorbance of the array and the modelled integrated electric field resonances confined around the gold structures is presented and discussed to explain the spectral shift between both parameters. Finite difference time domain calculations and Raman measurements of gold triangles of different sizes and periodicity are systematically performed. Numerical calculations show that the spectral maximum of the electric field varies in distinct areas over the metallic structures.

Keywords : Surface-enhanced Raman scattering Plasmonics Near-field microscopy

Type de document :

Article dans une revue

Optics Express, Optical Society of America, 2014, 22 (11), pp.13308. 〈10.1364/OE.22.013308〉

Domaine :

Sciences de l'ingénieur [physics] / Optique / photonique

Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-01245376
Contributeur : Sylvain Vedraine <>
Soumis le : jeudi 17 décembre 2015 - 10:11:37
Dernière modification le : jeudi 17 décembre 2015 - 10:11:37

On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays

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On the absorption and electromagnetic field spectral shifts in plasmonic nanotriangle arrays

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