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Updated: Apr 20, 2026
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Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
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Coated sphere scattering by geometric optics approximation
Summary
A novel geometric optics model simplifies light scattering calculations for coated spheres. This new method accurately predicts scattering intensity, validating its effectiveness against established theories.
Area of Science:
- Optics and Photonics
- Computational Physics
Background:
- Light scattering by coated spheres is crucial in various scientific fields.
- Existing models may lack efficiency or comprehensive treatment of complex ray paths.
Purpose of the Study:
- To develop a new, simplified geometric optics model for light scattering by coated spheres.
- To provide an analytic expression for scattering, considering different ray interactions.
Main Methods:
- Developed a geometric optics approximation (GOA) model parameterized by reflections and chords.
- Accounted for degeneracy and repeated paths for rays hitting the core.
- Treated rays missing the core using a homogeneous sphere approximation.
Main Results:
- Derived analytic expressions for light scattering by coated spheres.
- Calculated scattering intensities using the new GOA model.
- Validated the model by comparing results with Debye series and Aden-Kerker theory.
Conclusions:
- The proposed geometric optics model offers a simplified and valid approach for calculating light scattering by coated spheres.
- The model's consistency with established theories confirms its accuracy and utility.
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