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

Muhammad Amin; Hakan Bagci

doi:10.2528/pier12040507

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

Muhammad Amin, Hakan Bagci

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

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.

Original language	English (US)
Pages (from-to)	187-206
Number of pages	20
Journal	Progress in Electromagnetics Research
Volume	130
DOIs	https://doi.org/10.2528/pier12040507
State	Published - Jan 13 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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".

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics
Radiation

Access to Document

10.2528/pier12040507

Cite this

@article{68e6a2f5f94344ef9706676373316e2c,

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

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.",

author = "Muhammad Amin and Hakan Bagci",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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{"}.",

year = "2014",

month = jan,

day = "13",

doi = "10.2528/pier12040507",

language = "English (US)",

volume = "130",

pages = "187--206",

journal = "Progress in Electromagnetics Research",

issn = "1070-4698",

publisher = "Electromagnetics Academy",

}

TY - JOUR

T1 - Investigation of Fano resonances induced by higher order plasmon modes on a circular nano-disk with an elongated cavity

AU - Amin, Muhammad

AU - Bagci, Hakan

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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".

PY - 2014/1/13

Y1 - 2014/1/13

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/575903

UR - http://www.jpier.org/PIER/pier.php?paper=12040507

U2 - 10.2528/pier12040507

DO - 10.2528/pier12040507

M3 - Article

SN - 1070-4698

VL - 130

SP - 187

EP - 206

JO - Progress in Electromagnetics Research

JF - Progress in Electromagnetics Research

ER -

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

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this