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Updated: Jun 14, 2026

Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
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Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

Published on: January 9, 2017

Systematic studies of light scattering. 1: Particle shape.

D W Schuerman, R T Wang, B A Gustafson

    Applied Optics
    |April 8, 2010
    PubMed
    Summary
    This summary is machine-generated.

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    Particle shape significantly impacts light scattering, polarization, and radiation pressure. Using Mie theory may be inaccurate for non-spherical silicate particles in scattering applications.

    Area of Science:

    • Astrophysics
    • Optical Sciences

    Background:

    • Accurate modeling of light scattering by atmospheric and interstellar particles is crucial.
    • Previous studies often rely on Mie theory, which assumes spherical particles.

    Purpose of the Study:

    • To investigate the light scattering properties of various non-spherical silicate particle shapes.
    • To determine the influence of particle shape on scattering intensity, polarization, and extinction.

    Main Methods:

    • Microwave analog simulations were employed.
    • Theoretical calculations were performed.
    • Scattering properties were analyzed for particles of four sizes and seven shapes (cylinder, prolate/oblate spheroids, disk) at a silicate refractive index (m = 1.61-i0.004).

    Main Results:

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    Last Updated: Jun 14, 2026

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy
    09:16

    Measurement of Particle Size Distribution in Turbid Solutions by Dynamic Light Scattering Microscopy

    Published on: January 9, 2017

    Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
    11:57

    Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

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    Scattering And Absorption of Light in Planetary Regoliths

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    • Particle shape strongly influences the degree of polarization and backscatter.
    • The radiation-pressure cross section is highly sensitive to particle shape.
    • Averages were taken over random particle orientations for an ensemble of identical particles.

    Conclusions:

    • Mie theory, assuming spherical particles, may be inadequate for accurately describing light scattering by non-spherical particles.
    • Particle shape is a critical factor in light scattering phenomena, affecting polarization and radiation pressure significantly.