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Scattering by irregular inhomogeneous particles via the digitized Green's function algorithm.

Authors
  • Goedecke, G H
  • O'Brien, S G
Type
Published Article
Journal
Applied optics
Publication Date
Jun 15, 1988
Volume
27
Issue
12
Pages
2431–2438
Identifiers
DOI: 10.1364/AO.27.002431
PMID: 20531774
Source
Medline
License
Unknown

Abstract

The digitized Green's function (DGF) algorithm and the underlying theory are described. This finite element algorithm models dielectric particles of arbitrary shape and arbitrary optical structure. DGF predictions of differential and total cross sections are compared with predictions of Mie and EBCM algorithms for several homogeneous spheres and spheroids. Results of tests of convergence of the DGF calculation as the number of elements are increased are presented. Computer time and storage requirements as functions of wavelength and particle size, shape, and optical structure are discussed.

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