Preprint Article Version 1 This version is not peer-reviewed

Localized Surface Plasmons of Gold Nanoparticles

Version 1 : Received: 15 November 2018 / Approved: 15 November 2018 / Online: 15 November 2018 (14:54:58 CET)

How to cite: Mansoor, R. Localized Surface Plasmons of Gold Nanoparticles. Preprints 2018, 2018110364 (doi: 10.20944/preprints201811.0364.v1). Mansoor, R. Localized Surface Plasmons of Gold Nanoparticles. Preprints 2018, 2018110364 (doi: 10.20944/preprints201811.0364.v1).

Abstract

In this paper, the far field and near field optical responses of a gold nanoparticle are studied and simulated numerically. The electromagnetic field was excited by an electric dipole located near one end of the nanorod, which is used to model the emission of a quantum dot. Another excitation method was also simulated in which an incident plane wave is used. The excitation of dark plasmon modes of the gold nanorod is presented. The Poynting equation was solved numerically to study the influence of the gold nanorod on the dipole radiative power. In addition, the extinction cross section of the gold nanoparticle illuminated by the incident plane wave was calculated to estimate the amount of the scattered and absorbed light.

Subject Areas

Bio-sensing, Extinction cross-section, Nano-particles, Plasmons, Raman scattering.

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