English

An introduction to spatial dispersion: revisiting the basic concepts

Optics 2021-02-15 v4

Abstract

I describe three ways that the spatial properties of a wave propagation medium can cause dispersion, and propose that they should form the basics for correctly understanding and naming phenomena described as "spatial dispersion". In particular, I emphasise the specific spatial properties which generate the resulting dispersive -- i.e. spatially dispersive -- behaviour. The mechanisms are geometry, structure, and dynamics.

Keywords

Cite

@article{arxiv.1904.11957,
  title  = {An introduction to spatial dispersion: revisiting the basic concepts},
  author = {Paul Kinsler},
  journal= {arXiv preprint arXiv:1904.11957},
  year   = {2021}
}
R2 v1 2026-06-23T08:50:45.922Z