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Scattering And Absorption of Light in Planetary Regoliths
11:34

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Published on: July 1, 2019

A study on forward scattering Mueller matrix decomposition in anisotropic medium.

Yihong Guo1, Nan Zeng, Honghui He

  • 1Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.

Optics Express
|August 14, 2013
PubMed
Summary
This summary is machine-generated.

Mueller matrix polar decomposition (MMPD) reveals how sample structure causes light depolarization and retardance. Spherical scatterers cause depolarization, while birefringent media and cylindrical scatterers cause retardance.

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An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
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Area of Science:

  • Optical Physics
  • Materials Science
  • Polarimetry

Background:

  • Depolarization and retardance are key optical properties of anisotropic materials.
  • Understanding their origins requires correlating microscopic structure with macroscopic optical measurements.

Purpose of the Study:

  • To investigate the physical origins of depolarization and retardance in anisotropic scattering samples.
  • To establish the relationship between Mueller matrix polar decomposition (MMPD) parameters and sample microstructure.

Main Methods:

  • Application of Mueller matrix polar decomposition (MMPD) in a forward scattering configuration.
  • Monte Carlo simulations using the sphere-cylinder birefringence model (SCBM).
  • Forward scattering experiments on samples with polystyrene microspheres, aligned glass fibers, and polyacrylamide.

Main Results:

  • Spherical scatterers primarily contribute to depolarization.
  • Birefringent media and cylindrical scatterers contribute to retardance.
  • Cylindrical scatterers contribute to both depolarization and retardance, influenced by density, size, and alignment.

Conclusions:

  • MMPD effectively links microscopic sample structure to optical depolarization and retardance.
  • Distinct contributions of spherical, cylindrical, and birefringent components to light scattering phenomena were identified.