A plasmon-induced current loop in gold semi-shells

Cortie, M; Ford, M

A plasmon-induced current loop in gold semi-shells

Cortie, M

Ford, M

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Publication Type:: Journal Article
Citation:: Nanotechnology, 2007, 18 (23)
Issue Date:: 2007-06-13

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Field	Value	Language
dc.contributor.author	Cortie, M https://orcid.org/0000-0003-3202-6398	en_US
dc.contributor.author	Ford, M https://orcid.org/0000-0002-8595-5900	en_US
dc.date.issued	2007-06-13	en_US
dc.identifier.citation	Nanotechnology, 2007, 18 (23)	en_US
dc.identifier.issn	0957-4484	en_US
dc.identifier.uri	http://hdl.handle.net/10453/4373
dc.description.abstract	We perform a computational investigation of the optical properties of nanoscale gold 'semi-shells' and show how additional plasmon resonances develop as the shape is successively mutated from 'nanoshell' to 'nano-cup', 'half-shell' and finally to 'nano-cap'. The effects of aspect ratio, surface roughness and cut-off height are explored. Of special interest is a new longitudinal resonance that generates an electric current loop. We predict that this will induce an orthogonal magnetic component that will sum with the magnetic component of incident light at certain orientations. Exploitation of this phenomenon in an ordered array of semi-shells may produce anomalous optical effects due to an altered magnetic permeability. © IOP Publishing Ltd.	en_US
dc.relation.ispartof	Nanotechnology	en_US
dc.relation.isbasedon	10.1088/0957-4484/18/23/235704	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	A plasmon-induced current loop in gold semi-shells	en_US
dc.type	Journal Article
utslib.citation.volume	23	en_US
utslib.citation.volume	18	en_US
utslib.for	0904 Chemical Engineering	en_US
dc.location.activity	ISI000246590700018	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Research)
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	23	en_US
pubs.publication-status	Published	en_US
pubs.volume	18	en_US

Abstract:

We perform a computational investigation of the optical properties of nanoscale gold 'semi-shells' and show how additional plasmon resonances develop as the shape is successively mutated from 'nanoshell' to 'nano-cup', 'half-shell' and finally to 'nano-cap'. The effects of aspect ratio, surface roughness and cut-off height are explored. Of special interest is a new longitudinal resonance that generates an electric current loop. We predict that this will induce an orthogonal magnetic component that will sum with the magnetic component of incident light at certain orientations. Exploitation of this phenomenon in an ordered array of semi-shells may produce anomalous optical effects due to an altered magnetic permeability. © IOP Publishing Ltd.

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