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Article overview
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Hybridization and the origin of the Fano resonances in symmetric nanoparticle trimers | | Ben Hopkins
; Dmitry S. Filonov
; Stanislav B. Glybovski
; Andrey E. Miroshnichenko
; | | Date: |
4 Feb 2015 | | Abstract: | We study the light scattering by symmetric trimers comprised of either
plasmonic or dielectric particles. Such structures have been predicted to
produce a pronounced polarization-independent Fano resonance. We provide an
alternative approach to hybridization of the trimer’s the doubly-degenerate
eigenmodes, and show they exhibit a so-called exceptional point; a topological
singularity in their eigenspace. These eigenmodes, subsequently, do not exist
independently from each other. By extending our results we are able to confirm
that such doubly-degenerate eigenmodes will indeed produce
polarization-independent Fano resonances. Experimental measurements of a
trimer’s polarization-independent Fano resonance are in good agreement with the
expected response from the hybridized eigenmodes and thereby demonstrate the
validity of our approach. | | Source: | arXiv, 1502.1308 | | Services: | Forum | Review | PDF | Favorites | |
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