Light scattering regimes along the optical axis in turbid media

Sawyer Campbell, A. K. O'Connell, S. Menon, Q. Su, R. Grobe

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We inject an angularly collimated laser beam into a scattering medium of a nondairy creamer-water solution and examine the distribution of the scattered light along the optical axis as a function of the source-detector spacing. The experimental and simulated data obtained from a Monte Carlo simulation suggest four regimes characterizing the transition from unscattered to diffusive light. We compare the data also with theoretical predictions based on a first-order scattering theory for regions close to the source, and with diffusionlike theories for larger source-detector spacings. We demonstrate the impact of the measurement process and the effect of the unavoidable absorption of photons by the detection fiber on the light distribution inside the medium. We show that the range of validity of these theories can depend on the experimental parameters such as the diameter and acceptance angle of the detection fiber.

Original languageEnglish (US)
Article number061909
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume74
Issue number6
DOIs
StatePublished - Dec 1 2006

Fingerprint

Light Scattering
light scattering
Spacing
spacing
Detector
Fiber
fibers
detectors
Scattering Theory
scattering
Laser Beam
acceptability
Photon
Absorption
Monte Carlo Simulation
Scattering
laser beams
First-order
Water
Angle

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

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Light scattering regimes along the optical axis in turbid media. / Campbell, Sawyer; O'Connell, A. K.; Menon, S.; Su, Q.; Grobe, R.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 74, No. 6, 061909, 01.12.2006.

Research output: Contribution to journalArticle

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