Evolution of plasmonic response in growing silver thin films with pre-percolation non-local conduction and emittance drop

Earp, AA; Smith, GB

Evolution of plasmonic response in growing silver thin films with pre-percolation non-local conduction and emittance drop

Earp, AA Smith, GB

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Publication Type:: Journal Article
Citation:: Journal of Physics D: Applied Physics, 2011, 44 (25)
Issue Date:: 2011-06-29

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Field	Value	Language
dc.contributor.author	Earp, AA	en_US
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.date.issued	2011-06-29	en_US
dc.identifier.citation	Journal of Physics D: Applied Physics, 2011, 44 (25)	en_US
dc.identifier.issn	0022-3727	en_US
dc.identifier.uri	http://hdl.handle.net/10453/17979
dc.description.abstract	The optical response of growing silver thin films undergoes a transition dominated by three distinct plasmonic modes, two localized and one delocalized. Their admix as a function of added mass is analysed. The onset of the delocalized or Drude mode occurs before the sharp electrical percolation transition so optically the full insulator-metal transition is broadened. A scaling explanation supported by images shows Ag islands only have to link up over 200-300 nm to yield partial delocalization. The localized modes are (i) from silver nano-islands and (ii) a transitional anomalous mode, peaking near the dc critical percolation point, from islands surrounded by network. Growing silver within a multilayer oxide stack is compared with that on glass. The transition in thermal emittance matches that in the delocalized mode. Its broadening enables practical tuning of intermediate emittance by varying mass. © 2011 IOP Publishing Ltd.	en_US
dc.relation.ispartof	Journal of Physics D: Applied Physics	en_US
dc.relation.isbasedon	10.1088/0022-3727/44/25/255102	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Evolution of plasmonic response in growing silver thin films with pre-percolation non-local conduction and emittance drop	en_US
dc.type	Journal Article
utslib.citation.volume	25	en_US
utslib.citation.volume	44	en_US
utslib.for	0204 Condensed Matter Physics	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	09 Engineering	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 Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.issue	25	en_US
pubs.publication-status	Published	en_US
pubs.volume	44	en_US

Abstract:

The optical response of growing silver thin films undergoes a transition dominated by three distinct plasmonic modes, two localized and one delocalized. Their admix as a function of added mass is analysed. The onset of the delocalized or Drude mode occurs before the sharp electrical percolation transition so optically the full insulator-metal transition is broadened. A scaling explanation supported by images shows Ag islands only have to link up over 200-300 nm to yield partial delocalization. The localized modes are (i) from silver nano-islands and (ii) a transitional anomalous mode, peaking near the dc critical percolation point, from islands surrounded by network. Growing silver within a multilayer oxide stack is compared with that on glass. The transition in thermal emittance matches that in the delocalized mode. Its broadening enables practical tuning of intermediate emittance by varying mass. © 2011 IOP Publishing Ltd.

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http://hdl.handle.net/10453/17979