Publication detail

Graphene on an optical waveguide: comparison of simulation approaches

ČTYROKÝ, J. PETRÁČEK, J. KWIECIEN, P. RICHTER, I KUZMIAK, V.

Czech title

Grafen na optickém vlnovodu: srovnání simulačních přístupů

English title

Graphene on an optical waveguide: comparison of simulation approaches

Type

journal article in Web of Science

Language

en

Original abstract

Recently, unusual properties of novel two-dimensional materials like graphene have revolutionized many branches of science and technology. Adequate numerical simulations of photonic devices comprising graphene layers require new approaches or modified methods. In this paper we present comparison of results obtained with three representations of a graphene monolayer: (1) an infinitely thin sheet with a finite surface complex conductivity, (2) a thin layer of a finite thickness exhibiting uniaxially anisotropic complex permittivity, and (3) anisotropic permittivity perturbation in an infinitely small volume. Numerical solutions of rigorous dispersion equations were compared to each other and also with the results obtained with several commercial as well as proprietary software packets. Under proper conditions, all approaches provide comparable results.

Czech abstract

Neobvyklé vlastnosti nových dvourozměrných materiálů, jako je grafen, způsobily revoluci v mnoha oborech vědy a techniky. Adekvátní numerické simulace fotonických zařízení obsahujících grafenové vrstvy vyžadují nové přístupy nebo modifikované metody. Předkládáme podrobné srovnání výsledků získaných pomocí tří reprezentací monovrstvy grafenu: (i) nekonečně tenká vrstva s konečnou vodivostí, (ii) tenká vrstva konečné tloušťky vykazující jednoosou anizotropní komplexní permitivitu a (iii) porucha permitivity v nekonečně malém objemu.

English abstract

Recently, unusual properties of novel two-dimensional materials like graphene have revolutionized many branches of science and technology. Adequate numerical simulations of photonic devices comprising graphene layers require new approaches or modified methods. In this paper we present comparison of results obtained with three representations of a graphene monolayer: (1) an infinitely thin sheet with a finite surface complex conductivity, (2) a thin layer of a finite thickness exhibiting uniaxially anisotropic complex permittivity, and (3) anisotropic permittivity perturbation in an infinitely small volume. Numerical solutions of rigorous dispersion equations were compared to each other and also with the results obtained with several commercial as well as proprietary software packets. Under proper conditions, all approaches provide comparable results.

Keywords in English

Graphene; Optical waveguides; Numerical simulations; Perturbation method; Boundary condition method; Volumetric method

Released

25.02.2020

Publisher

SPRINGER

Location

DORDRECHT

ISSN

0306-8919

Volume

52

Number

3

Pages from–to

149-1–149-14

Pages count

14

BIBTEX


@article{BUT162495,
  author="Jiří {Čtyroký} and Jiří {Petráček},
  title="Graphene on an optical waveguide: comparison of simulation approaches",
  year="2020",
  volume="52",
  number="3",
  month="February",
  pages="149-1--149-14",
  publisher="SPRINGER",
  address="DORDRECHT",
  issn="0306-8919"
}