Polarization of transmission scattering simulated by using a multiple-facets model.

Area of Science:

• Optics and Photonics
• Materials Science
• Computational Physics

Background:

• Light scattering from rough surfaces is crucial in optics and materials science.
• Understanding polarization changes during scattering is essential for various applications.
• Previous models often simplified surface roughness and scattering orders.

Purpose of the Study:

• To simulate Mueller matrices for light scattering from a rough glass hemisphere surface.
• To investigate the role of micro-facet models and scattering orders on polarization.
• To compare simulation results with experimental measurements.

Main Methods:

• Utilized a micro-facet model for simulating scattering.
• Employed Kirchhoff integral for single-facet scattering on medium-rough surfaces.
• Simulated scattering from two or more facets, including higher orders.
• Formulated algorithms in vector representation for input/output directions.

Main Results:

• Single-facet scattering showed no depolarization or polarization change.
• Double-facet scattering introduced significant polarization changes with minimal depolarization.
• Higher-order scattering progressively increased depolarization.
• Simulations including all scattering orders showed excellent agreement with experimental data.

Conclusions:

• The micro-facet model, incorporating multiple scattering orders, accurately predicts the scattering transmittance and polarization properties of rough glass surfaces.
• Higher-order scattering is critical for accurately modeling depolarization effects.
• This simulation approach provides a robust method for analyzing light-surface interactions.