Direct Determination of Diffusion Properties of Random Media from Speckle Contrast

Abstract

We present a simple scheme to determine the diffusion properties of a thin slab of strongly scattering material by measuring the speckle contrast resulting from the transmission of a femtosecond pulse with controlled bandwidth. In contrast with previous methods, our scheme does not require time measurements nor interferometry. It is well adapted to the characterization of samples for pulse shaping, non-linear excitation through scattering media and biological imaging.

4 pages, 2 figures

References in corpus (3)

• Focusing and Compression of Ultrashort Pulses through Scattering Media
• Control of light transmission through opaque scattering media in space and time
• Entanglement and Thouless times from coincidence measurements across disordered media

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