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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 7 — Jul. 16, 2007

Numerical study of particle-size distributions retrieved from angular light-scattering data using an evolution strategy with the Fraunhofer approximation

Javier Vargas-Ubera, Juan Jaime Sánchez-Escobar, J. Félix Aguilar, and David Michel Gale  »View Author Affiliations

Applied Optics, Vol. 46, Issue 17, pp. 3602-3610 (2007)

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An algorithm is presented based on an evolution strategy to retrieve a particle size distribution from angular light-scattering data. The analyzed intensity patterns are generated using the Mie theory, and the algorithm retrieves a series of known normal, gamma, and lognormal distributions by using the Fraunhofer approximation. The distributions scan the interval of modal size parameters 100 α ¯ 150 . The numerical results show that the evolution strategy can be successfully applied to solve this kind of inverse problem, obtaining a more accurate solution than, for example, the Chin–Shifrin inversion method, and avoiding the use of a priori information concerning the domain of the distribution, commonly necessary for reconstructing the particle size distribution when this analytical inversion method is used.

© 2007 Optical Society of America

OCIS Codes
(290.0290) Scattering : Scattering
(290.3200) Scattering : Inverse scattering
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles

ToC Category:

Original Manuscript: November 20, 2006
Manuscript Accepted: January 15, 2007
Published: May 18, 2007

Virtual Issues
Vol. 2, Iss. 7 Virtual Journal for Biomedical Optics

Javier Vargas-Ubera, Juan Jaime Sánchez-Escobar, J. Félix Aguilar, and David Michel Gale, "Numerical study of particle-size distributions retrieved from angular light-scattering data using an evolution strategy with the Fraunhofer approximation," Appl. Opt. 46, 3602-3610 (2007)

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