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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 7 — Jul. 1, 2009
  • pp: 1704–1713

Accurate method for predicting light scattering from soot aggregates with subparticles of arbitrary shape and structure

Anders Karlsson, Henrik Bladh, and Per-Erik Bengtsson  »View Author Affiliations


JOSA A, Vol. 26, Issue 7, pp. 1704-1713 (2009)
http://dx.doi.org/10.1364/JOSAA.26.001704


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Abstract

Soot particles can be formed in hydrocarbon flames as a result of an inefficient combustion process. The particles are near-spherical, and at later stages in the soot growth process, they form chainlike sparse aggregates. When applying optical diagnostic methods, this aggregation influences the evaluation of soot properties based on assumptions of isolated particles. In this paper an efficient and accurate method for calculating scattering of light from these structures is presented. The method can handle aggregates with several hundred subparticles with no restrictions on shape, internal structure, or coagulation of the subparticles. The basic idea is that the induced dipole moments of the subparticles are determined from the solution of a quasi-static problem that can be solved with high accuracy by, e.g., the finite element method.

© 2009 Optical Society of America

OCIS Codes
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.0290) Scattering : Scattering

ToC Category:
Scattering

History
Original Manuscript: March 27, 2009
Revised Manuscript: May 7, 2009
Manuscript Accepted: May 9, 2009
Published: June 24, 2009

Citation
Anders Karlsson, Henrik Bladh, and Per-Erik Bengtsson, "Accurate method for predicting light scattering from soot aggregates with subparticles of arbitrary shape and structure," J. Opt. Soc. Am. A 26, 1704-1713 (2009)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-7-1704

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