Graphene-based slab waveguide for slow-light propagation and mode filtering

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The existence of broadband slow-waves through slab waveguide comprised of sub-wavelength-sized bulk gold and bounded with graphene and silica layers was investigated. A monolayer of graphene medium was taken to be interposed between the gold core and the silica cladding (of the guide). The dispersion behavior exhibits that the guide supports only the fundamental transverse magnetic (TM0) mode, whereas the transverse electric (TE) and the higher order TM modes are blocked. Furthermore, slow-waves can sustain in the guide in the entire visible region of the electromagnetic spectrum.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalJournal of Electromagnetic Waves and Applications
DOIs
Publication statusAccepted/In press - 21 Jan 2017

Fingerprint

Slow light
Light propagation
Graphite
Silicon Dioxide
Gold
Graphene
graphene
slabs
Waveguides
Silica
gold
silicon dioxide
waveguides
electromagnetic spectra
propagation
Monolayers
broadband
Wavelength
wavelengths

Keywords

  • guided wave optics
  • mode filters
  • Slow-wave structures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

Cite this

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AB - The existence of broadband slow-waves through slab waveguide comprised of sub-wavelength-sized bulk gold and bounded with graphene and silica layers was investigated. A monolayer of graphene medium was taken to be interposed between the gold core and the silica cladding (of the guide). The dispersion behavior exhibits that the guide supports only the fundamental transverse magnetic (TM0) mode, whereas the transverse electric (TE) and the higher order TM modes are blocked. Furthermore, slow-waves can sustain in the guide in the entire visible region of the electromagnetic spectrum.

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