Abstract

The statistical properties of laser speckle with partially coherent light are related to the scattering characteristics of an optically diffuse material. A diffusion equation model is shown to yield a speckle contrast ratio that agrees well with measurements of opaque plastics of varying thicknesses. We show that partially coherent light can be used to determine material parameters for highly scattering media. Measured data for stratified materials with differing scattering properties indicate that this technique may be useful in detecting inhomogeneities.

© 1997 Optical Society of America

Imaging in scattering media by use of laser speckle

C. A. Thompson, K. J. Webb, and A. M. Weiner
J. Opt. Soc. Am. A 14(9) 2269-2277 (1997)

Characterization and imaging in optically scattering media by use of laser speckle and a variable-coherence source

J. D. McKinney, M. A. Webster, K. J. Webb, and A. M. Weiner
Opt. Lett. 25(1) 4-6 (2000)

Polarization-sensitive speckle spectroscopy of scattering media beyond the diffusion limit

Dmitry A. Zimnyakov, Jung-Taek Oh, Yury P. Sinichkin, Valery A. Trifonov, and Eugeny V. Gurianov
J. Opt. Soc. Am. A 21(1) 59-70 (2004)

Spatially varying dynamical properties of turbid media probed with diffusing temporal light correlation

D. A. Boas and A. G. Yodh
J. Opt. Soc. Am. A 14(1) 192-215 (1997)

Imaging very-low-contrast objects in breastlike scattering media with a time-resolved method

David J. Hall, Jeremy C. Hebden, and David T. Delpy
Appl. Opt. 36(28) 7270-7276 (1997)