Plasmon spectra of nanospheres under a tightly focused beam

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dc.creatorMojarad, Nassiredin M.
dc.creatorSandoghdar, Vahid
dc.creatorAgio, Mario
dc.date2007-11-22
dc.date.accessioned2026-07-07T09:29:33Z
dc.date.available2026-07-07T09:29:33Z
dc.descriptionWe study the modification of the far-field cross sections and the near-field enhancement for gold and silver nanospheres illuminated by a tightly focused beam. Using a multipole-expansion approach we obtain an analytical solution to the scattering problem and provide insight on the effects of focusing on the optical response. Large differences with respect to Mie theory are found especially when the nanoparticle supports quadrupole or higher-order resonances.
dc.description19 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0711.3649
dc.identifierhttp://arxiv.org/abs/0711.3649
dc.identifierJ. Opt. Soc. Am. B 25, 651 (2008)
dc.identifierdoi:10.1364/JOSAB.25.000651
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157826
dc.subjectOptics
dc.subjectChemical Physics
dc.titlePlasmon spectra of nanospheres under a tightly focused beam
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