Decomposition of the point-dipole field into homogeneous and evanescent parts

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Setälä, Tero Kaivola, Matti Friberg, Ari T. 2015-04-15T09:00:55Z 2015-04-15T09:00:55Z 1999
dc.identifier.citation Setälä, Tero & Kaivola, Matti & Friberg, Ari T.. 1999. Decomposition of the point-dipole field into homogeneous and evanescent parts. Physical Review E. Volume 59, Issue 1. P. 1200-1206. ISSN 1550-2376 (electronic). ISSN 1539-3755 (printed). DOI: 10.1103/physreve.59.1200. en
dc.identifier.issn 1550-2376 (electronic)
dc.identifier.issn 1539-3755 (printed)
dc.description.abstract In near-field optics the resolution and sensitivity of measurements depend on the abundance of evanescent waves in relation to propagating waves. The electromagnetic field propagator is related to the scalar spherical wave, for which the Weyl expansion is a half-space representation containing both evanescent and homogeneous plane waves. Making use of these results, we decompose the dyadic free-space Green function into its evanescent and homogeneous parts and show that some approaches put forward in the literature are inconsistent with this formulation. We express the results in a form that is suitable for numerical computation and illustrate the field decomposition for a point dipole in some typical cases. en
dc.format.extent 1200-1206
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review E en
dc.relation.ispartofseries Volume 59, Issue 1
dc.rights © 1999 American Physical Society (APS). en
dc.subject.other Physics en
dc.title Decomposition of the point-dipole field into homogeneous and evanescent parts en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS) Perustieteiden korkeakoulu fi School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword point-dipole field en
dc.subject.keyword decomposition en
dc.subject.keyword dyadic free-space Green function en
dc.identifier.urn URN:NBN:fi:aalto-201504142281
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physreve.59.1200
dc.type.version Final published version en

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