Size-dependent permittivity and intrinsic optical anisotropy of nanometric gold thin films: A density functional theory study

Laref, S; Cao, J; Asaduzzaman, A; Runge, K; Deymier, P; Ziolkowski, RW; Miyawaki, M; Muralidharan, K

Size-dependent permittivity and intrinsic optical anisotropy of nanometric gold thin films: A density functional theory study

Laref, S Cao, J Asaduzzaman, A Runge, K Deymier, P Ziolkowski, RW

Miyawaki, M Muralidharan, K

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Publication Type:: Journal Article
Citation:: Optics Express, 2013, 21 (10), pp. 11827 - 11838
Issue Date:: 2013-05-20

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Field	Value	Language
dc.contributor.author	Laref, S	en_US
dc.contributor.author	Cao, J	en_US
dc.contributor.author	Asaduzzaman, A	en_US
dc.contributor.author	Runge, K	en_US
dc.contributor.author	Deymier, P	en_US
dc.contributor.author	Ziolkowski, RW https://orcid.org/0000-0003-4256-6902	en_US
dc.contributor.author	Miyawaki, M	en_US
dc.contributor.author	Muralidharan, K	en_US
dc.date.issued	2013-05-20	en_US
dc.identifier.citation	Optics Express, 2013, 21 (10), pp. 11827 - 11838	en_US
dc.identifier.uri	http://hdl.handle.net/10453/117052
dc.description.abstract	Physical properties of materials are known to be different from the bulk at the nanometer scale. In this context, the dependence of optical properties of nanometric gold thin films with respect to film thickness is studied using density functional theory (DFT). We find that the in-plane plasma frequency of the gold thin film decreases with decreasing thickness and that the optical permittivity tensor is highly anisotropic as well as thickness dependent. Quantitative knowledge of planar metal film permittivity's thickness dependence can improve the accuracy and reliability of the designs of plasmonic devices and electromagnetic metamaterials. The strong anisotropy observed may become an alternative method of realizing indefinite media. © 2013 Optical Society of America.	en_US
dc.relation.ispartof	Optics Express	en_US
dc.relation.isbasedon	10.1364/OE.21.011827	en_US
dc.rights	© 2013 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Optics	en_US
dc.subject.mesh	Gold	en_US
dc.subject.mesh	Membranes, Artificial	en_US
dc.subject.mesh	Refractometry	en_US
dc.subject.mesh	Electric Capacitance	en_US
dc.subject.mesh	Anisotropy	en_US
dc.subject.mesh	Models, Chemical	en_US
dc.subject.mesh	Computer Simulation	en_US
dc.subject.mesh	Metal Nanoparticles	en_US
dc.title	Size-dependent permittivity and intrinsic optical anisotropy of nanometric gold thin films: A density functional theory study	en_US
dc.type	Journal Article
utslib.citation.volume	10	en_US
utslib.citation.volume	21	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.issue	10	en_US
pubs.publication-status	Published	en_US
pubs.volume	21	en_US

Abstract:

Physical properties of materials are known to be different from the bulk at the nanometer scale. In this context, the dependence of optical properties of nanometric gold thin films with respect to film thickness is studied using density functional theory (DFT). We find that the in-plane plasma frequency of the gold thin film decreases with decreasing thickness and that the optical permittivity tensor is highly anisotropic as well as thickness dependent. Quantitative knowledge of planar metal film permittivity's thickness dependence can improve the accuracy and reliability of the designs of plasmonic devices and electromagnetic metamaterials. The strong anisotropy observed may become an alternative method of realizing indefinite media. © 2013 Optical Society of America.

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http://hdl.handle.net/10453/117052