Particle-particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles: a two-particle model.

Abstract

A two-particle model is proposed which enables the assessment of particle-particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles of arbitrary geometry in inhomogeneous environments. The two-particle model predicts experimentally observed peak splittings in the extinction cross section spectrum for randomly distributed gold nanocones on a TiO2:Er3+ thin film with average center-to-center spacings of 3-5 diameters. The main physical mechanism responsible is found to be interference between the incident field and the far-field component of the single-particle scattered field which is guided along the film.

DOI: 10.1364/OE.25.019354

Cite this paper

@article{Eriksen2017ParticleparticleII, title={Particle-particle interactions in large, sparse arrays of randomly distributed plasmonic metal nanoparticles: a two-particle model.}, author={Emil H Eriksen and Brian Julsgaard and S\oren P Madsen and Harish Lakhotiya and Adnan Nazir and P{\'e}ter Balling}, journal={Optics express}, year={2017}, volume={25 16}, pages={19354-19359} }