Ramsauer approach for light scattering on non-absorbing spherical particles and application to the Henyey-Greenstein phase function

TL;DR

This paper introduces a Ramsauer-based analytical method to model light scattering on non-absorbing spherical particles, providing intuitive insights and relating phase function asymmetry to particle size.

Contribution

It applies the Ramsauer approach, known from atomic physics, to light scattering, offering a new analytical framework for understanding scattering phenomena.

Findings

Ramsauer solutions accurately describe scattering phase functions.

The model relates the Henyey-Greenstein asymmetry parameter to particle size.

The approach offers an intuitive understanding of scattering physics.

Abstract

We present a new method to study light scattering on non-absorbing spherical particles. This method is based on the Ramsauer approach, a model known in atomic an nuclear physics. Its main advantage is its intuitive understanding of the underlying physics phenomena. We show that although the approximations are numerous, the Ramsauer analytical solutions describe fairly well the scattering phase function and the total cross section. Then this model is applied to the Henyey-Greenstein parameterisation of scattering phase function to give a relation between its asymmetry parameter and the mean particle size.