Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41598-018-21498-4
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dc.titlePlasmonic Spherical Heterodimers: Reversal of Optical Binding Force Based on the Forced Breaking of Symmetry
dc.contributor.authorMahdy, M.R.C.
dc.contributor.authorDanesh, M.
dc.contributor.authorZhang, T.
dc.contributor.authorDing, W.
dc.contributor.authorRivy, H.M.
dc.contributor.authorChowdhury, A.B.
dc.contributor.authorMehmood, M.Q.
dc.date.accessioned2022-01-19T04:13:44Z
dc.date.available2022-01-19T04:13:44Z
dc.date.issued2018
dc.identifier.citationMahdy, M.R.C., Danesh, M., Zhang, T., Ding, W., Rivy, H.M., Chowdhury, A.B., Mehmood, M.Q. (2018). Plasmonic Spherical Heterodimers: Reversal of Optical Binding Force Based on the Forced Breaking of Symmetry. Scientific Reports 8 (1) : 3164. ScholarBank@NUS Repository. https://doi.org/10.1038/s41598-018-21498-4
dc.identifier.issn20452322
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/214010
dc.description.abstractThe stimulating connection between the reversal of near-field plasmonic binding force and the role of symmetry-breaking has not been investigated comprehensively in the literature. In this work, the symmetry of spherical plasmonic heterodimer-setup is broken forcefully by shining the light from a specific side of the set-up instead of impinging it from the top. We demonstrate that for the forced symmetry-broken spherical heterodimer-configurations: reversal of lateral and longitudinal near-field binding force follow completely distinct mechanisms. Interestingly, the reversal of longitudinal binding force can be easily controlled either by changing the direction of light propagation or by varying their relative orientation. This simple process of controlling binding force may open a novel generic way of optical manipulation even with the heterodimers of other shapes. Though it is commonly believed that the reversal of near-field plasmonic binding force should naturally occur for the presence of bonding and anti-bonding modes or at least for the Fano resonance (and plasmonic forces mostly arise from the surface force), our study based on Lorentz-force dynamics suggests notably opposite proposals for the aforementioned cases. Observations in this article can be very useful for improved sensors, particle clustering and aggregation. � 2018 The Author(s).
dc.publisherNature Publishing Group
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceScopus OA2018
dc.typeArticle
dc.contributor.departmentDEPT OF ELECTRICAL & COMPUTER ENGG
dc.description.doi10.1038/s41598-018-21498-4
dc.description.sourcetitleScientific Reports
dc.description.volume8
dc.description.issue1
dc.description.page3164
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