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Theory of surface-plasmon resonance optical-field enhancement at prolate spheroids
Chalmers.ORCID iD: 0000-0001-6235-7038
2002 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 92, no 9, 4878-4884 p.Article in journal (Refereed) Published
Abstract [en]

The optical-field enhancement from plasmon resonance at spheroids is studied by solving Maxwell equations using spheroidal vector wave functions. This treatment is an extension of the Mie theory for spheres. The phase retardation or dephasing effects, as studied by finite-element methods in a previous article, are confirmed. Nevertheless, the optical-field enhancement is shown to be substantial under certain resonance conditions. It is suggested that the positions of the resonances in parameter space are determined by global antenna properties and the magnitude of the field enhancement by local plasmon resonance.

Place, publisher, year, edition, pages
American Institute of Physics , 2002. Vol. 92, no 9, 4878-4884 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-59158DOI: 10.1063/1.1512315ISI: 000178767200005OAI: diva2:350188
Available from: 2010-09-10 Created: 2010-09-09 Last updated: 2014-01-15

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Willander, Magnus
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Journal of Applied Physics
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