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Updated: Jun 6, 2026

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Light scattering by a multilayer sphere.

|November 25, 2010

Summary

This summary is machine-generated.

This study extends a recurrence algorithm to calculate electromagnetic scattering, internal fields, and absorption cross sections for multilayer spheres. The enhanced method provides detailed analysis for complex spherical structures.

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Area of Science:

Electromagnetic theory
Computational physics
Wave propagation

Background:

Electromagnetic scattering from multilayer spheres is crucial in various applications.
Previous recurrence algorithms efficiently calculated scattering but lacked internal field and absorption details.
Accurate modeling of complex spherical geometries is computationally challenging.

Purpose of the Study:

To modify and extend the Wu and Wang recurrence algorithm for electromagnetic scattering.
To incorporate calculations for internal electric fields within each layer.
To determine the absorption cross sections of individual layers in multilayer spheres.

Main Methods:

A modified recurrence algorithm propagates log derivatives of Debye potentials outward.
An inward recurrence procedure calculates Debye potentials from the outer layer to the core.
A parallel algorithm computes absorption cross sections for concentric spheres.

Main Results:

The extended algorithm successfully calculates both scattering and internal fields.
Absorption cross sections for individual layers are accurately determined.
Example calculations demonstrate the algorithm's efficacy, including for a Luneburg lens.

Conclusions:

The enhanced recurrence algorithm provides a comprehensive tool for analyzing electromagnetic interactions with multilayer spheres.
This method facilitates detailed investigation of internal fields and energy absorption.
The approach is validated through diverse computational examples.