Show simple item record

dc.contributor.authorTurkpence, D.en_US
dc.contributor.authorAkguc G.B.en_US
dc.contributor.authorBek, A.en_US
dc.contributor.authorTasgin, M.E.en_US
dc.date.accessioned2016-02-08T10:42:32Z
dc.date.available2016-02-08T10:42:32Z
dc.date.issued2014en_US
dc.identifier.issn20408978
dc.identifier.urihttp://hdl.handle.net/11693/25303
dc.description.abstractWe show that nonlinear optical processes of nanoparticles can be controlled by the presence of interactions with a molecule or a quantum dot. By choosing the appropriate level spacing for the quantum emitter, one can either suppress or enhance the nonlinear frequency conversion. We reveal the underlying mechanism for this effect, which is already observed in recent experiments: (i) suppression occurs simply because transparency induced by Fano resonance does not allow an excitation at the converted frequency, and (ii) enhancement emerges since the nonlinear process can be brought to resonance. The path interference effect cancels the nonresonant frequency terms. We demonstrate the underlying physics using a simplified model, and we show that the predictions of the model are in good agreement with the three-dimensional boundary element method (MNPBEM toolbox) simulations. Here, we consider the second harmonic generation in a plasmonic converter as an example to demonstrate the control mechanism. The phenomenon is the semi-classical analog of nonlinearity enhancement via electromagnetically induced transparency. © 2014 IOP Publishing Ltd.en_US
dc.language.isoEnglishen_US
dc.source.titleJournal of Optics (United Kingdom)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/2040-8978/16/10/105009en_US
dc.subjectenhancementen_US
dc.subjectFano resonancesen_US
dc.subjectplasmonsen_US
dc.subjectsecond harmonic generationen_US
dc.subjectHarmonic generationen_US
dc.subjectPlasmonsen_US
dc.subjectFano resonancesen_US
dc.subjectNon-linear responseen_US
dc.subjectImage enhancementen_US
dc.titleEngineering nonlinear response of nanomaterials using Fano resonancesen_US
dc.typeArticleen_US
dc.departmentDepartment of Physicsen_US
dc.citation.volumeNumber16en_US
dc.citation.issueNumber10en_US
dc.identifier.doi10.1088/2040-8978/16/10/105009en_US
dc.publisherInstitute of Physics Publishingen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record