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

Emil H. Eriksen | Zendy; Brian Julsgaard | Zendy; S. Madsen | Zendy; Harish Lakhotiya | Zendy; Adnan Nazir | Zendy; Péter Balling | Zendy

Open Access

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

Author(s) -

Emil H. Eriksen,

Brian Julsgaard,

S. Madsen,

Harish Lakhotiya,

Adnan Nazir,

Péter Balling

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.019354

Subject(s) - particle (ecology) , plasmon , materials science , nanoparticle , extinction (optical mineralogy) , optics , field (mathematics) , molecular physics , physics , nanotechnology , oceanography , mathematics , geology , pure mathematics

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 TiO 2 :Er 3+ hin 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.

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