Graphene on an optical waveguide: comparison of simulation approaches

journal article in Web of Science

English

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.

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

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

25. 2. 2020

SPRINGER

DORDRECHT

0306-8919

Optical and Quantum Electronics

52

3

Kingdom of the Netherlands

149-1

149-14

14

https://link.springer.com/article/10.1007%2Fs11082-020-02265-0