Optical response of nanostructured metal/dielectric composites and multilayers

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dc.contributor.author Maaroof, Abbas en_US
dc.contributor.author Schelm, Stefan en_US
dc.contributor.author Allan, Rodney en_US
dc.contributor.author Cortie, Michael en_US
dc.contributor.author Smith, Geoff en_US
dc.contributor.author Anstis, Geoff en_US
dc.contributor.editor McCall, M. en_US
dc.date.accessioned 2009-11-09T02:44:14Z
dc.date.available 2009-11-09T02:44:14Z
dc.date.issued 2004 en_US
dc.identifier 2004002074 en_US
dc.identifier.citation Smith Geoffrey et al. 2004, 'Optical response of nanostructured metal/dielectric composites and multilayers', International Society for Optical Engneering, USA, pp. 192-205. en_US
dc.identifier.issn 0277-786X en_US
dc.identifier.other E1 en_US
dc.identifier.uri http://hdl.handle.net/10453/1707
dc.description.abstract The homogeneous optical response in conducting nanostructured layers, and in insulating layers containing dense arrays of self assembled conducting nanoparticles separated by organic linkers, is examined experimentally through their effective complex indices (n*, k*). Classical effective medium models, modified to account for the 3-phase nanostructure, are shown to explain (n*, k*) in dense particulate systems but not inhomogeneous layers with macroscopic conductance for which a different approach to homogenisation is discussed. (n*, k*) data on thin granular metal films, thin mesoporous gold, and on thin metal layers containing ordered arrays of voids, is linked to properties of the surface plasmon states which span the nanostructured film. Coupling between evanescent waves at either surface counterbalanced by electron scattering losses must be considered. Virtual bound states for resonant photons result, with the associated transit delay leading to a large rise in n* in many nanostructures. Overcoating n-Ag with alumina is shown to alter (n*, k*) through its impact on the SP coupling. In contrast to classical optical homogenisation, effective indices depend on film thickness. Supporting high resolution SEM images are presented. en_US
dc.publisher International Society for Optical Engneering en_US
dc.relation.isbasedon http://dx.doi.org/10.1117/12.555971 en_US
dc.rights © (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
dc.title Optical response of nanostructured metal/dielectric composites and multilayers en_US
dc.parent Complex Mediums V: Light and Complexity: Proceedings of SPIE Vol 5508 en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation USA en_US
dc.identifier.startpage 192 en_US
dc.identifier.endpage 205 en_US
dc.cauo.name SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.conference.location Colorado, USA en_US
dc.for 100700 en_US
dc.personcode 730312 en_US
dc.personcode 010727 en_US
dc.personcode 02035374 en_US
dc.personcode 87145788 en_US
dc.personcode 840027 en_US
dc.personcode 020302 en_US
dc.percentage 40 en_US
dc.classification.name Nanotechnology en_US
dc.classification.type FOR-08 en_US
dc.custom Complex Mediums V: Light & Complexity en_US
dc.date.activity 20040804 en_US
dc.location.activity Colorado, USA en_US
dc.staffid 020302 en_US

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