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Applied Optics

Applied Optics


  • Vol. 40, Iss. 24 — Aug. 20, 2001
  • pp: 4204–4209

Temporal autocorrelation function for a diffusing-wave spectroscopy experiment with a point source and backscattering detection

Carlos Rega, Christopher J. Lloyd, David Attwood, David Clarke, and Pauline Geraghty  »View Author Affiliations

Applied Optics, Vol. 40, Issue 24, pp. 4204-4209 (2001)

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The autocorrelation function of the backscattered intensity in a diffusing-wave spectroscopy experiment that uses a point source is calculated by use of the diffusive-wave model. We show that in this approximation the calculated autocorrelation function decays faster than if the plane-source approximation were used. The design of a probe that implements this geometry is presented together with preliminary results that show the utility of the probe as a sizing tool in concentrated dispersions.

© 2001 Optical Society of America

OCIS Codes
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.1350) Scattering : Backscattering
(290.1990) Scattering : Diffusion
(290.4210) Scattering : Multiple scattering
(290.7050) Scattering : Turbid media

Original Manuscript: October 17, 2000
Revised Manuscript: April 13, 2001
Published: August 20, 2001

Carlos Rega, Christopher J. Lloyd, David Attwood, David Clarke, and Pauline Geraghty, "Temporal autocorrelation function for a diffusing-wave spectroscopy experiment with a point source and backscattering detection," Appl. Opt. 40, 4204-4209 (2001)

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