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Applied Optics

Applied Optics


  • Vol. 34, Iss. 18 — Jun. 20, 1995
  • pp: 3489–3501

Sizing of colloidal particles with light scattering: corrections for beginning multiple scattering

Heimo Schnablegger and Otto Glatter  »View Author Affiliations

Applied Optics, Vol. 34, Issue 18, pp. 3489-3501 (1995)

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Static light scattering is widely used for sizing of particles with radii in the range of 50 nm up to several micrometers. These experiments usually require very low particle concentrations (<10−4) for prevention of multiple scattering. As a consequence, nonabsorbing samples that are suited for light-scattering investigations must be transparent so that the transmittance of the incident light is typically above 95%. Investigations of less translucent samples require corrective terms for the beginning of multiple scattering to retrieve the particle-size distribution successfully. We applied a computationally convenient first-order approximation for the multiple-scattering problem that has Hartel’s approach in its first steps. When incorporated into our inversion technique, this approximation functions well for samples with transmittances above 30%. We present examples of applications to experimental data.

© 1995 Optical Society of America

Original Manuscript: January 3, 1994
Revised Manuscript: January 3, 1995
Published: June 20, 1995

Heimo Schnablegger and Otto Glatter, "Sizing of colloidal particles with light scattering: corrections for beginning multiple scattering," Appl. Opt. 34, 3489-3501 (1995)

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