Friday 29 Jan 2016Speckle, scattering and imaging

Prof. Chris Dainty - University College London

Newman Red 12:30-13:30

There is currently a lot of interest in the possibility of optical imaging in live tissue. Unfortunately, visible and near infrared wavelengths are highly multiply scattered in tissue, and if coherent light is used, the raw measured intensity data is a speckle pattern. Speckle is a very old subject (the first recorded observations were published in 1877) and it can either be treated statistically, or as a deterministic carrier of information. This talk will review the history of speckle from the 1960s onwards and relate some recent ideas for imaging in live tissue to older research on stellar speckle interferometry.

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