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Inelastic scattering on spherical microparticles with inclusions.

J Schulte1, G Schweiger

  • 1Laseranwendungstechnik, Ruhr-Universitaet Bochum, Germany. schulte@lat.ruhr-uni-bochum.de

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|January 11, 2001
PubMed
Summary

This study models scattering from spherical microparticles with dipole inclusions, using iterative dipole computations and Mie theory. Results provide cross-section calculations for microparticles and agglomerates.

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Area of Science:

  • Physics
  • Optical Science
  • Materials Science

Background:

  • Scattering phenomena in microparticles are crucial for understanding light-matter interactions.
  • Modeling complex microparticle structures, like those with inclusions, presents significant computational challenges.

Purpose of the Study:

  • To develop and present a computational method for analyzing scattering from spherical microparticles containing dipole inclusions.
  • To calculate scattering cross-sections for both individual microparticles and their agglomerates.

Main Methods:

  • Representing inclusions as dipoles for both elastic and inelastic scattering.
  • Employing iterative dipole computation with sequence transformations for accelerated convergence in elastic scattering.
  • Utilizing Mie theory to compute scattering cross-sections.

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Main Results:

  • Successfully computed scattering cross-sections for spherical microparticles with inclusions.
  • Extended calculations to include scattering from agglomerates of these microparticles.
  • Demonstrated an accelerated iterative approach for dipole calculations.

Conclusions:

  • The presented dipole-based iterative method, accelerated by sequence transformations, is effective for modeling scattering from microparticles with inclusions.
  • Mie theory provides a robust framework for calculating scattering cross-sections in these complex systems.
  • The findings are applicable to understanding light interactions with aggregated microparticle systems.