Year: 2010
Communications in Computational Physics, Vol. 8 (2010), Iss. 5 : pp. 1224–1241
Abstract
We develop a numerical method for approximating the surface modes of sphere-like nanoparticles in the quasi-static limit, based on an expansion of (the angular part of) the potentials into spherical harmonics. Comparisons of the results obtained in this manner with exact solutions and with a perturbation ansatz prove that the scheme is accurate if the shape deviations from a sphere are not too large. The method allows fast calculations for large numbers of particles, and thus to obtain statistics for nanoparticles with random shape fluctuations. As an application we present some statistics for the distribution of resonances, polariziabilities, and dipole axes for particles with random perturbations.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/cicp.230210.260310a
Communications in Computational Physics, Vol. 8 (2010), Iss. 5 : pp. 1224–1241
Published online: 2010-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 18
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Singular perturbations approach to localized surface-plasmon resonance: Nearly touching metal nanospheres
Schnitzer, Ory
Physical Review B, Vol. 92 (2015), Iss. 23
https://doi.org/10.1103/PhysRevB.92.235428 [Citations: 12]