Coupled nano-plasmons View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2013-10-12

AUTHORS

M. Apostol, S. Ilie, A. Petrut, M. Savu, S. Toba

ABSTRACT

A simple model of coupled plasmons arising in two neighbouring nano-particles is presented. The coupled oscillations and the corresponding eigenfrequencies are computed. It is shown that the plasmons may be periodically transferred between the two particles. For larger separation distances between the two particles the retardation is included. The oscillation eigenmodes are the polaritons in this case. There are distances for which the particles do not couple to each other, i.e. the polaritonic coupling gets damped. The van der Waals-London-Casimir force is estimated for the two particles; it is shown that for large distances the force is repulsive. We compute also the polarizabilities of the two coupled nano-particles and their cross-section under the action of an external monochromatic plane wave, which exhibit resonances indicative of light trapping and field enhancement. A resonant force is also identified, acting upon the particles both on behalf of the external field and of each other. More... »

PAGES

387-392

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00339-013-8030-7

DOI

http://dx.doi.org/10.1007/s00339-013-8030-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016849282


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