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Laser induced enhancement of dichroism in supported silver nanoparticles deposited by evaporation at glancing angles

 

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dc.creator Filippin Emilio, Alejandro Nicolás
dc.creator Borrás Martos, Ana Isabel
dc.creator Rico Gavira, Víctor Joaquín
dc.creator Frutos Rayego, Fabián
dc.creator González-Elipe, Agustín R.
dc.date.accessioned 2015-11-13T11:27:32Z
dc.date.available 2015-11-13T11:27:32Z
dc.date.issued 2013
dc.identifier.citation Filippin Emilio, A.N., Borrás Martos, A.I., Rico Gavira, V.J., Frutos Rayego, F. y González-Elipe, A.R. (2013). Laser induced enhancement of dichroism in supported silver nanoparticles deposited by evaporation at glancing angles. Nanotechnology, 24, 045301-1-045301-10.
dc.identifier.issn 0957-4484 es
dc.identifier.uri http://hdl.handle.net/11441/30730
dc.description.abstract were deposited on flat substrates by physical vapor deposition in a glancing angle configuration. The particles were characterized by scanning electron microscopy and atomic force microscopy and their optical properties examined by UV–vis absorption spectroscopy using linearly polarized light. It was found that, depending on the amount of deposited silver and the evaporation angle, part of the ‘as-prepared’ samples present NPs characterized by an anisotropic shape and a polarization dependent SPR absorption and different colors when using polarized white light at 0 and 90 . Low-power irradiation of these materials with an infrared Nd-YAG nanosecond laser in ambient conditions produced an enhancement in such dichroism. At higher powers, the dichroism was lost and the SPR bands shifted to lower wavelengths as a result of the reshaping of the silver NPs in the form of spheres. The possible factors contributing to the observed changes in dichroism are discussed. es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher IOP Publishing es
dc.relation.ispartof Nanotechnology, 24, 045301-1-045301-10.
dc.rights Atribución-NoComercial-CompartirIgual 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ *
dc.title Laser induced enhancement of dichroism in supported silver nanoparticles deposited by evaporation at glancing angles es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/submittedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Física Aplicada I es
dc.relation.publisherversion http://dx.doi.org/10.1088/0957-4484/24/4/045301 es
dc.identifier.doi 10.1088/0957-4484/24/4/045301 es
idus.format.extent 10 p. es
dc.journaltitle Nanotechnology es
dc.publication.volumen 24 es
dc.publication.initialPage 045301-1 es
dc.publication.endPage 045301-10 es
dc.identifier.idus https://idus.us.es/xmlui/handle/11441/30730
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