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primary topic: Design and optimization of bowtie nanoantenna for electromagnetic field enhancement

Design and optimization of bowtie nanoantenna for electromagnetic field enhancement
type: AcademicArticle
type: Article
abstract: Designing a plasmonic structure having high near field enhancement of incident field, large hot spot area, wideband resonance, and multiple resonance peaks are the key elements to obtain large electromagnetic field enhancement factor for various biosensors like surface-enhanced Raman scattering and Spasers. In this paper, we have proposed three different configurations of the bowtie nanoantenna represented as Single Bowtie Structure, Double Bowtie Structure (DBS), and Triple Bowtie Structure (TBS). Numerical simulations are performed with the characteristics of Nanoantenna and the analysis of the influence of the size parameter of the antennas along with the optimization of this parameter is performed to achieve the maximum near field enhancement. The result shows that TBS delivers the highest enhancement factor with a triple resonance peak. Whereas, in the second portion, the demonstrated results show the influence of the size on the enhancement of the incident field which further indicates, that as the size reduces the enhancement decreases. Furthermore, variations in the gap are simulated with four types having simple bowtie structure, reduced symmetry of DBS, reduced symmetry of TBS, and double reduced symmetry of TBS. The results significantly showed that type 4 configuration covers a wider wavelength with enhanced near electromagnetic field. © 2021, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
date: 2021
volume: 136
issue: 7
is part of: European Physical Journal Plus
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Springer Science and Business Media Deutschland GmbH
type: Organization

European Physical Journal Plus
type: Collection
issn: 21905444

S. Ayub
type: Person
given name: S.
family name: Ayub

W. Farooq
type: Person
given name: W.
family name: Farooq

U.K. Khalil
type: Person
given name: U.K.
family name: Khalil

A. Ur Rehman
type: Person
given name: A.
family name: Ur Rehman

S.Z. Ul Abideen Kazmi
type: Person
given name: S.Z.
family name: Ul Abideen Kazmi

J. Iqbal
type: Person
given name: J.
family name: Iqbal

A.D. Khan
type: Person
given name: A.D.
family name: Khan

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primary topic: Design and optimization of bowtie nanoantenna for electromagnetic field enhancement