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dc.contributor.author
Esteves Lopez, Maria Natalia
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dc.contributor.author
Pastawski, Horacio Miguel
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dc.contributor.author
Bustos Marun, Raul Alberto
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dc.date.available
2018-07-05T17:28:55Z
dc.date.issued
2015-04
dc.identifier.citation
Esteves Lopez, Maria Natalia; Pastawski, Horacio Miguel; Bustos Marun, Raul Alberto; Plasmonic graded-chains as deep-subwavelength light concentrators; IOP Publishing; Journal of Physics: Condensed Matter; 27; 12; 4-2015
dc.identifier.issn
0953-8984
dc.identifier.uri
http://hdl.handle.net/11336/51364
dc.description.abstract
We have studied the plasmonic properties of aperiodic arrays of identical nanoparticles (NPs) formed by two opposite and equal graded-chains (a chain where interactions change gradually). We found that these arrays concentrate the external electromagnetic fields even in the long wavelength limit. The phenomenon was understood by identifying the system with an effective cavity where plasmonics excitations are trapped between effective band edges, resulting from the change of passband with the NP's position. Dependence of excitation concentration on several system parameters was also assessed. This includes different gradings as well as NP couplings, damping, and resonant frequencies. In the spirit of the scaling laws in condensed matter physics, we developed a theory that allows us to rationalize all these system parameters into universal curves. The theory is quite general and can also be used in many other situations (different arrays for example). Additionally, we also provided an analytical solution, in the tight-binding limit, for the plasmonic response of homogeneous linear chains of NPs illuminated by a plane wave. Our results can find applications in sensing, near field imaging, plasmon-enhanced photodetectors, as well as to increase solar cell efficiency.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Concentrator
dc.subject
Graded-Chains
dc.subject
Nanoparticles
dc.subject
Plasmonics
dc.subject
Subwavelength
dc.subject
Universal Curves
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Plasmonic graded-chains as deep-subwavelength light concentrators
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-03T21:52:28Z
dc.identifier.eissn
1361-648X
dc.journal.volume
27
dc.journal.number
12
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Esteves Lopez, Maria Natalia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Fisicoquímica; Argentina
dc.description.fil
Fil: Pastawski, Horacio Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.description.fil
Fil: Bustos Marun, Raul Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.journal.title
Journal of Physics: Condensed Matter
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0953-8984/27/12/125301/article?fromSearchPage=true
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0953-8984/27/12/125301
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