English

NumBAT: The integrated, open source Numerical Brillouin Analysis Tool

Optics 2019-07-30 v1

Abstract

We describe NumBAT, an open-source software tool for modelling stimulated Brillouin scattering in waveguides of arbitrary cross-section. It provides rapid calculation of optical and elastic dispersion relations, field profiles and gain with an easy-to-use Python front end. Additionally, we provide an open and extensible set of standard problems and reference materials to facilitate the bench-marking of NumBAT against subsequent tools. Such a resource is needed to help settle discrepancies between existing formulations and implementations, and to facilitate comparison between results in the literature. The resulting standardised testing framework will allow the community to gain confidence in new algorithms and will provide a common tool for the comparison of experimental designs of opto-acoustic waveguides.

Keywords

Cite

@article{arxiv.1811.10219,
  title  = {NumBAT: The integrated, open source Numerical Brillouin Analysis Tool},
  author = {Björn C. P. Sturmberg and Kokou B. Dossou and Michael J. A. Smith and Blair Morrison and Christopher G. Poulton and Michael J. Steel},
  journal= {arXiv preprint arXiv:1811.10219},
  year   = {2019}
}

Comments

17 pages, 18 figures

R2 v1 2026-06-23T05:27:32.207Z