Dielectric and Plasmonic Dimers: Broadband Reversal of Optical Binding Force

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dc.contributor.advisorMahdy Rahman Chowdhury
dc.contributor.authorMahadul Islam
dc.contributor.authorMizanur Rahman
dc.contributor.id1620871043
dc.contributor.id1620306043
dc.coverage.departmentElectrical and Computer Engineering
dc.date.accessioned2025-07-01
dc.date.accessioned2025-07-01T10:19:56Z
dc.date.available2025-07-01T10:19:56Z
dc.date.issued2020
dc.description.abstractThe controlled broadband reversal of optical binding force is one of the latest and most promising areas of optical manipulation. Hardly any work has been done to control broadband reversal of the optical binding force of two heterodimers. Until now, optical manipulation has been used to find the reversal at the far-field optical binding force for plasmonic homodimers only. The behavior between the dielectric-plasmonic nanoparticles and their optical binding force in near and far fields has not been investigated in the literature yet, as the regulation of optical binding force by using only light in both far field and near field is a completely unexplored area. In this article, we have shown a very simple way of controlling the broadband reversal of optical binding force in both near field and far field for dielectric and plasmonic heterodimers. Through five different setups, we have shown that strong and stable reversal can be achieved for the near-field binding force for the dielectric-plasmonic heterodimers only if we put them on a substrate made of plasmonic material in an inhomogeneous background (air). This kind of reversal of binding force for dielectric-plasmonic heterodimers has been demonstrated based on the change in electric field and dipolar theory. Thus, we have proposed two generic ways to achieve strong reversal of optical binding force for dielectric-plasmonic heterodimers on a plasmonic-made substrate, where we can control the mutual attraction and repulsion by varying the wavelengths only. Keywords - broadband reversal, optical manipulation, dielectric, plasmonic, heterodimers, dipolar theory.
dc.description.degreeUndergraduate
dc.identifier.cd600000390
dc.identifier.print-thesisTo be assigned
dc.identifier.urihttps://repository.northsouth.edu/handle/123456789/1217
dc.language.isoen
dc.publisherNorth South University
dc.rights©Nsulibrary
dc.titleDielectric and Plasmonic Dimers: Broadband Reversal of Optical Binding Force
dc.typeProject
oaire.citation.endPage63
oaire.citation.startPage1
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