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Speckle fluctuations resolve the interdistance between incoherent point sources in complex media

Carminati, R. ; Cwilich, G. ; Froufe-Pérez, Luis S. ; Sáenz, J. J.

In: Physical Review A, 2015, vol. 91, no. 2, p. 023807

We study the fluctuations of the light emitted by two identical incoherent point sources in a disordered environment. The intensity-intensity correlation function and the speckle contrast, obtained after proper temporal and configurational averaging, encode the relative distance between the two sources. This suggests the intriguing possibility that intensity measurements at only one point in...

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The influence of the scattering anisotropy parameter on diffuse reflection of light

Pierrat, R. ; Ben Braham, Nasser ; Rojas-Ochoa, Luis Fernando ; Carminati, R. ; Scheffold, Frank

In: Optics Communications, 2008, vol. 281, no. 1, p. 18-22

We discuss the impact of the scattering anisotropy parameter on the path length distribution of multiply scattered light. A quantitative treatment based on the radiative transfer equation is compared to an extended photon diffusion formalism. We compare both models with diffusing-wave spectroscopy measurements using randomly polarized light.

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