Anisotropic optical properties of semitransparent coatings of gold nanocaps

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Show simple item record Liu, J Cankurtaran, B Wieczorek, L Ford, MJ Cortie, M 2009-06-26T04:10:48Z 2006-07-21
dc.identifier.citation Advanced Functional Materials, 2006, 16 (11), pp. 1457 - 1461
dc.identifier.issn 1616-301X
dc.identifier.other C1 en_US
dc.description.abstract An ordered array of cap-shaped gold nanoparticles has been prepared by vapor deposition onto polystyrene nanospheres supported on a glass substrate. The method of fabrication used imparts a significant anisotropy to the geometric and optical properties of the coating. The optical-absorption properties of these deposits have been measured using UV-vis spectrometry and simulated using a code based on the discrete dipole approximation. Because the nanocaps are not interconnected, they interact with incident light as individual particles with a plasmon resonance that depends upon wavelength and the polarization vector of the light. The resulting extinction peaks manifest in the upper visible and near-infrared regions of the electromagnetic spectrum. Surprisingly, varying the angle of incidence of the light (for a fixed polarization) has no effect on the optical properties of individual nanocaps. Calculations show that these phenomena may be readily interpreted in terms of dipole resonances excited across the longitudinal, transverse, and short-transverse directions of the nanocaps. Coatings comprised of arrays of these particles have the potential to serve as angularly and spectrally selective filters. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.
dc.language eng
dc.relation.isbasedon 10.1002/adfm.200500794
dc.title Anisotropic optical properties of semitransparent coatings of gold nanocaps
dc.type Journal Article
dc.parent Advanced Functional Materials
dc.journal.volume 11
dc.journal.volume 16
dc.journal.number 11 en_US
dc.publocation Weinheim, Germany en_US
dc.publocation Australia
dc.identifier.startpage 1457 en_US
dc.identifier.endpage 1461 en_US SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.conference Annual Condensed matter and materials meeting
dc.for 0912 Materials Engineering
dc.for 0904 Chemical Engineering
dc.personcode 020302
dc.personcode 020323
dc.personcode 040173
dc.personcode 024710
dc.percentage 50 en_US Materials Engineering en_US
dc.classification.type FOR-08 en_US 2006-02-07
dc.location.activity Wagga Wagga
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Materials and Technology for Energy Efficiency
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history General Collection (ID: 346) [2015-05-15T14:11:10+10:00]
utslib.collection.history Closed (ID: 3)

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