Metal-Insulator nanocomposites which act optically like homogeneous conductors

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Show simple item record Gentle, Angus en_US Maaroof, Abbas en_US Smith, Geoff en_US 2009-12-21T02:33:00Z 2009-12-21T02:33:00Z 2007 en_US
dc.identifier 2007001232 en_US
dc.identifier.citation Smith Geoffrey, Gentle Angus, and Maaroof Abbas 2007, 'Metal-Insulator nanocomposites which act optically like homogeneous conductors', SPIE - International Society for Optical Engineering, vol. 1, pp. 013507-1-013507-15. en_US
dc.identifier.issn 1934-2608 en_US
dc.identifier.other C1 en_US
dc.description.abstract Conductor-insulator nanocomposites in which the conductor percolates can have optical responses at longer wavelengths like dense conductors with an effective plasma frequency wp*. This applies at wavelengths where the Bergman spectral function F for permittivity varies sufficiently slowly with wavelength. wp* can be engineered by varying the components, the nanostructure's topology, or the dielectric volume fraction f. The homogenized conductor acts like a dense conductor whose charge carriers have effective mass meff*. Results are presented for wp*(f) and meff*(f) using the Maxwell Garnett (MG) and Bruggemann (BR) models for spheres and aligned ellipsoids. In the BR case meff*(f) at the percolation concentration is singular. Example wp* data for spheres and ellipsoids are given which match predictions. Anisotropy in effective mass is considered, such that effective plasma frequency can depend strongly on polarisation direction of incident light. en_US
dc.publisher SPIE - International Society for Optical Engineering en_US
dc.relation.isbasedon en_US
dc.title Metal-Insulator nanocomposites which act optically like homogeneous conductors en_US
dc.parent Journal of Nanophotonics en_US
dc.journal.volume 1 en_US
dc.journal.number en_US
dc.publocation United States en_US
dc.identifier.startpage 013507-1 en_US
dc.identifier.endpage 013507-15 en_US SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 020500 en_US
dc.personcode 730312 en_US
dc.personcode 000307 en_US
dc.personcode 010727 en_US
dc.percentage 60 en_US Optical Physics en_US
dc.classification.type FOR-08 en_US
dc.staffid 010727 en_US
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10

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