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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 7 — Mar. 1, 2012
  • pp: 846–854

Multiangle dynamic light scattering analysis using angular intensity weighting determined by iterative recursion

Xiaoyan Liu, Jin Shen, John C. Thomas, Shaojian Shi, Xianming Sun, and Wei Liu  »View Author Affiliations

Applied Optics, Vol. 51, Issue 7, pp. 846-854 (2012)

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Multiangle dynamic light scattering (MDLS) can provide better results for particle size distribution (PSD) determination than single-angle dynamic light scattering. Proper analysis of MDLS data requires data from each measurement angle to be appropriately weighted according to the intensity scattered by the particles at each scattering angle. The angular weighting coefficients may be determined by measuring the angular dependence of the scattered light intensity or estimated in various ways. In either case, any noise on the weighting coefficients will adversely affect the PSD determination. We propose a new iterative recursion method for estimating the weighting coefficients and demonstrate its effectiveness for recovering PSDs from both simulated and real experimental data. The new method gives better PSD results than those found using other weighting estimates.

© 2012 Optical Society of America

OCIS Codes
(290.3200) Scattering : Inverse scattering
(290.4020) Scattering : Mie theory
(290.5820) Scattering : Scattering measurements
(290.5850) Scattering : Scattering, particles

ToC Category:

Original Manuscript: August 26, 2011
Revised Manuscript: November 20, 2011
Manuscript Accepted: November 24, 2011
Published: February 24, 2012

Virtual Issues
Vol. 7, Iss. 5 Virtual Journal for Biomedical Optics

Xiaoyan Liu, Jin Shen, John C. Thomas, Shaojian Shi, Xianming Sun, and Wei Liu, "Multiangle dynamic light scattering analysis using angular intensity weighting determined by iterative recursion," Appl. Opt. 51, 846-854 (2012)

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