Oumekloul, Z. and Lahlali, S. and Mir, A. and Akjouj, A. (2018) Evolution of LSPR of gold nanowire chain embedded in dielectric multilayers. Optical Materials, 86. pp. 343-351.

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Abstract

The objective of this paper is to improve the sensitivity and the performance of nano-sensors by using the simulation, which was done by finite element method in 2D plasmonic nanostructures. Meanwhile, the effects of geometric parameters of a hexagonal gold nanostructure, and the influence of two dielectrics Si3N4 and SiOx were treated. In order to have better sensitivity, the nature and the thickness of a deposed dielectric were controlled. Whenever we change the geometric parameters of the metallic nanostructure, we see changes in nanoparticle's plasmonic response. Adjusting the theoretical curve to experimental LSPR curve allowed the geometry of the plasmonic interface to be fixed and evaluation of the change in the wavelength at resonance (λR) as a function of the SiOx overlayers thickness. The theoretical data were compared with experimental results obtained on glass/Au nanowires/SiOx and glass/Au Nanowires/Si3N4 interfaces. © 2018 Elsevier B.V.

Item Type: Article
Uncontrolled Keywords: Absorption; Dielectric materials; Geometry; Glass; Gold; Nanosensors; Nanowires; Plasmonics; Plasmons; Sensors; Silicon compounds, Dielectric multilayers; Gold nanostructures; Gold nanowire; LSPR; Metallic nanostructure; Plasmonic nanostructures; Plasmonic response; Sensibility, Nitrogen compounds
Subjects: Chemistry
Divisions: SCIENTIFIC PRODUCTION > Chemistry
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:45
URI: http://eprints.umi.ac.ma/id/eprint/1831

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