Investigation of Fano resonances induced by higher order plasmon modes on a circular nano-disk with an elongated cavity

Handle URI:
http://hdl.handle.net/10754/575903
Title:
Investigation of Fano resonances induced by higher order plasmon modes on a circular nano-disk with an elongated cavity
Authors:
Amin, Muhammad Ruhul; Bagci, Hakan ( 0000-0003-3867-5786 )
Abstract:
In this paper, a planar metallic nanostructure design, which supports two distinct Fano resonances in its extinction cross-section spectrum under normally incident and linearly polarized electromagnetic field, is proposed. The proposed design involves a circular disk embedding an elongated cavity; shifting and rotating the cavity break the symmetry of the structure with respect to the incident field and induce higher order plasmon modes. As a result, Fano resonances are generated in the visible spectrum due to the destructive interference between the sub-radiant higher order modes and super-radiant the dipolar mode. The Fano resonances can be tuned by varying the cavity's width and the rotation angle. An RLC circuit, which is mathematically equivalent to a mass-spring oscillator, is proposed to model the optical response of the nanostructure design.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program; Computational Electromagnetics Laboratory
Publisher:
EMW Publishing
Journal:
Progress in Electromagnetics Research
Issue Date:
10-Aug-2012
DOI:
10.2528/pier12040507
Type:
Article
ISSN:
10704698
Sponsors:
This work was supported in part by a Academic Excellence Alliance (AEA) program award from King Abdullah University of Science and Technology (KAUST) Global Collaborative Research (GCR) under the title "Energy Efficient Photonic and Spintronic Devices".
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Electrical Engineering Program; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAmin, Muhammad Ruhulen
dc.contributor.authorBagci, Hakanen
dc.date.accessioned2015-08-25T06:18:51Zen
dc.date.available2015-08-25T06:18:51Zen
dc.date.issued2012-08-10en
dc.identifier.issn10704698en
dc.identifier.doi10.2528/pier12040507en
dc.identifier.urihttp://hdl.handle.net/10754/575903en
dc.description.abstractIn this paper, a planar metallic nanostructure design, which supports two distinct Fano resonances in its extinction cross-section spectrum under normally incident and linearly polarized electromagnetic field, is proposed. The proposed design involves a circular disk embedding an elongated cavity; shifting and rotating the cavity break the symmetry of the structure with respect to the incident field and induce higher order plasmon modes. As a result, Fano resonances are generated in the visible spectrum due to the destructive interference between the sub-radiant higher order modes and super-radiant the dipolar mode. The Fano resonances can be tuned by varying the cavity's width and the rotation angle. An RLC circuit, which is mathematically equivalent to a mass-spring oscillator, is proposed to model the optical response of the nanostructure design.en
dc.description.sponsorshipThis work was supported in part by a Academic Excellence Alliance (AEA) program award from King Abdullah University of Science and Technology (KAUST) Global Collaborative Research (GCR) under the title "Energy Efficient Photonic and Spintronic Devices".en
dc.publisherEMW Publishingen
dc.titleInvestigation of Fano resonances induced by higher order plasmon modes on a circular nano-disk with an elongated cavityen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputational Electromagnetics Laboratoryen
dc.identifier.journalProgress in Electromagnetics Researchen
kaust.authorBagci, Hakanen
kaust.authorAmin, Muhammad Ruhulen
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