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Speckle contrast at deviations from best focus in microfluidic and in vivo

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Abstract

Speckle contrast values with depth increments of 50 μm to 600 μm from best focus was analysed in microfluidic and in vivo. We show depth deviations are allowed for ø ≈ 200μm while conserving velocity change to less than 20 %.

© 2012 Optical Society of America

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