The apparent optical indices of spongy nanoporous gold

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dc.contributor.author Smith, Geoffrey en_US
dc.contributor.author Cortie, Michael en_US
dc.contributor.author Maaroof, Abbas en_US
dc.contributor.editor Colla, M. en_US
dc.date.accessioned 2009-11-09T02:44:02Z
dc.date.available 2009-11-09T02:44:02Z
dc.date.issued 2005 en_US
dc.identifier 2005002950 en_US
dc.identifier.citation Smith Geoffrey, Cortie Michael, and Maaroof Abbas 2005, 'The apparent optical indices of spongy nanoporous gold', Australian Institute of Physics, Canberra, pp. 177-180. en_US
dc.identifier.issn 0-9598064-8-2 en_US
dc.identifier.other E1 en_US
dc.identifier.uri http://hdl.handle.net/10453/1698
dc.description.abstract Very thin spongy nanoporous gold films have a unique nanostructure and hence unusual properties. Our interest in these materials is also due to their wide range of potential application (1,2). An optical study for such nanostructured films is of fundamental interest for understanding how light interacts with such a spongy nanoporous structure. In general the gold either percolates or is very closely packed. This surface plasmons, and surface plasmon resonant effects, are expected to play a key role given the large surface area of metal and the metal backbone of the nanostructure. The ropological complexity of the nano-void network is also expected to be a major influence. The optical response has, for a metal system, quite unusual dispersion relations for the effective complex refractive index components n*, k*. Once these are better understood new optical engineering possibilities arise. We are not aware of any optical studies for spongy metal film nanostructures apart from a brief preliminary report of our own on one such film 93) whose nanstructure was different to the spongy nanoporous films presented here. We check the internal consistency and physical accpetability of the results with a Kramers-Kronig analysis of the spectrumn of n*, k* values, because of their unusual spectral character. en_US
dc.publisher Australian Institute of Physics en_US
dc.title The apparent optical indices of spongy nanoporous gold en_US
dc.parent Proceedings of the 16th National Congress of the Australian Institute of Physics en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation Canberra en_US
dc.identifier.startpage 177 en_US
dc.identifier.endpage 180 en_US
dc.cauo.name INT en_US
dc.conference Verified OK en_US
dc.conference.location Canberra en_US
dc.for 100700 en_US
dc.personcode 730312 en_US
dc.personcode 020302 en_US
dc.personcode 010727 en_US
dc.percentage 100 en_US
dc.classification.name Optical Physics en_US
dc.classification.type FOR-08 en_US
dc.custom National Congress of the AIP en_US
dc.date.activity 20050112 en_US
dc.location.activity Canberra en_US
dc.staffid 010727 en_US


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