Please use this identifier to cite or link to this item: https://doi.org/10.1021/jp1080912
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dc.titleSurface plasmon enhanced third-order nonlinear optical effects in Ag-Fe3O4 nanocomposites
dc.contributor.authorMamidala, V.
dc.contributor.authorXing, G.
dc.contributor.authorJi, W.
dc.date.accessioned2014-10-16T09:43:27Z
dc.date.available2014-10-16T09:43:27Z
dc.date.issued2010-12-30
dc.identifier.citationMamidala, V., Xing, G., Ji, W. (2010-12-30). Surface plasmon enhanced third-order nonlinear optical effects in Ag-Fe3O4 nanocomposites. Journal of Physical Chemistry C 114 (51) : 22466-22471. ScholarBank@NUS Repository. https://doi.org/10.1021/jp1080912
dc.identifier.issn19327447
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98137
dc.description.abstractWe report an approach to enhance the third-order nonlinear optical properties of a nanocrystal through the attachment of another metallic nanoparticle. Both two-photon absorption (TPA) cross section and nonlinear refractive (NR) cross section of a Fe3O4 nanocube with and without the attachment of an Ag nanoparticle are characterized by using the Z-scan technique. As compared to pristine Fe3O4 nanocube, the TPA and NR cross section of Ag-particle-attached Fe3O4 nanocube is increased by several folds at light frequencies far below the surface plasmon resonance of Ag particle, with precise values depending on the size of the Ag particle. These enhanced values are in agreement with the theoretically calculated enhancement by discrete dipole approximation modeling, which reveals that the local electric field induced by the metal nanoparticle should play an essential role in the enhancement. © 2010 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/jp1080912
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1021/jp1080912
dc.description.sourcetitleJournal of Physical Chemistry C
dc.description.volume114
dc.description.issue51
dc.description.page22466-22471
dc.identifier.isiut000285447000014
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