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Correlation between reflected and transmitted light in scattering media

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When monochromatic light propagates through a scattering medium, it is scrambled and produces a seemingly random speckle pattern. This randomization process prevents information passing through a turbid material, which behaves like a screen and prevents us from seeing through it. Yet, linear multiple scattering is not enough to completely decouple the two sides of a turbid medium, as interference between the scattered waves can produce correlations in the speckle patterns. I will present the experimental characterization of a novel form of correlation that connects the reflected and the transmitted speckle, potentially allowing to image through a scattering medium non-invasively, measuring only the reflected light.

This talk is part of the Materials Chemistry Research Interest Group series.

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