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dc.contributor.author
Goñi, Alejandro R.
dc.contributor.author
Güell, Frank
dc.contributor.author
Pérez, Luis Alberto
dc.contributor.author
Lopez-Vidrier, Julian
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Ossó, J. Oriol
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Coronado, Eduardo A.
dc.contributor.author
Morante, Joan R.
dc.date.available
2019-08-12T14:04:17Z
dc.date.issued
2011-12-20
dc.identifier.citation
Goñi, Alejandro R.; Güell, Frank; Pérez, Luis Alberto; Lopez-Vidrier, Julian; Ossó, J. Oriol; et al.; Retrieving the spatial distribution of cavity modes in dielectric resonators by near-field imaging and electrodynamics simulations; Royal Society of Chemistry; Nanoscale; 4; 5; 20-12-2011; 1620-1626
dc.identifier.issn
2040-3364
dc.identifier.uri
http://hdl.handle.net/11336/81402
dc.description.abstract
For good performance of photonic devices whose working principle is based on the enhancement of electromagnetic fields obtained by confining light into dielectric resonators with dimensions in the nanometre length scale, a detailed knowledge of the optical mode structure becomes essential. However, this information is usually lacking and can only be indirectly obtained by conventional spectroscopic techniques. Here we unraveled the influence of wire size, incident wavelength, degree of polarization and the presence of a substrate on the optical near fields generated by cavity modes of individual hexagonal ZnO nanowires by combining scanning near-field optical microscopy (SNOM) with electrodynamics calculations within the discrete dipole approximation (DDA). The near-field patterns obtained with very high spatial resolution, better than 50 nm, exhibit striking size and spatial-dispersion effects, which are well accounted for within DDA, using a wavevector-dependent dipolar interaction and considering the dielectric anisotropy of ZnO. Our results show that both SNOM and DDA simulations are powerful tools for the design of optoelectronic devices able to manipulate light at the nanoscale.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Semiconductor Nanowires
dc.subject
Near Field Optical Properties
dc.subject
Snom
dc.subject
Electrodynamics Simulations And Experiments
dc.subject.classification
Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Retrieving the spatial distribution of cavity modes in dielectric resonators by near-field imaging and electrodynamics simulations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-18T16:16:07Z
dc.identifier.eissn
2040-3372
dc.journal.volume
4
dc.journal.number
5
dc.journal.pagination
1620-1626
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Goñi, Alejandro R.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencia de los Materiales de Barcelona; España
dc.description.fil
Fil: Güell, Frank. Universidad de Barcelona; España
dc.description.fil
Fil: Pérez, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Lopez-Vidrier, Julian. Universidad de Barcelona; España
dc.description.fil
Fil: Ossó, J. Oriol. Universidad de Barcelona; España
dc.description.fil
Fil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Morante, Joan R.. Universidad de Barcelona; España
dc.journal.title
Nanoscale
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2012/NR/c2nr11693f#!divAbstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/c2nr11693f


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