A time-domain analysis is presented of the transient field excited by a vertical electric dipole on a graphene sheet described through a local scalar conductivity model valid in the intraband regime. The analysis is carried out by means of the double-deformation method of Tsang and Kong [J. Math. Phys. 20, 1170 (1979)JMAPAQ0022-248810.1063/1.524169], a modified modal technique which allows for defining a causal surface-plasmon-polariton (SPP) contribution to the total transient field that is also computationally very efficient for a graphene sheet. Numerical results are presented and validated against independent numerical full-wave simulations. The proposed approach provides a viable route to the direct time-domain investigation of the role of SPPs in graphene-based structures employed in ultra-wide-band nanosystems.

Time-domain surface plasmon polaritons on a graphene sheet / Burghignoli, Paolo; Lovat, Giampiero; Araneo, Rodolfo; Celozzi, Salvatore. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 97:24(2018), p. 1. [10.1103/PhysRevB.97.245418]

Time-domain surface plasmon polaritons on a graphene sheet

Burghignoli, Paolo;Lovat, Giampiero;Araneo, Rodolfo;Celozzi, Salvatore
2018

Abstract

A time-domain analysis is presented of the transient field excited by a vertical electric dipole on a graphene sheet described through a local scalar conductivity model valid in the intraband regime. The analysis is carried out by means of the double-deformation method of Tsang and Kong [J. Math. Phys. 20, 1170 (1979)JMAPAQ0022-248810.1063/1.524169], a modified modal technique which allows for defining a causal surface-plasmon-polariton (SPP) contribution to the total transient field that is also computationally very efficient for a graphene sheet. Numerical results are presented and validated against independent numerical full-wave simulations. The proposed approach provides a viable route to the direct time-domain investigation of the role of SPPs in graphene-based structures employed in ultra-wide-band nanosystems.
2018
Electronic, optical and magnetic materials; condensed matter physics
01 Pubblicazione su rivista::01a Articolo in rivista
Time-domain surface plasmon polaritons on a graphene sheet / Burghignoli, Paolo; Lovat, Giampiero; Araneo, Rodolfo; Celozzi, Salvatore. - In: PHYSICAL REVIEW. B. - ISSN 2469-9950. - 97:24(2018), p. 1. [10.1103/PhysRevB.97.245418]
File allegati a questo prodotto
File Dimensione Formato  
Burghignoli_Time-domain_2018.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.21 MB
Formato Adobe PDF
2.21 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1129529
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact