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Fourier spatial filter acts as a temporal gate for light propagating through a turbid medium

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Abstract

The temporal profiles of ultra-short light pulses propagating through turbid media of different lengths were measured with a streak camera. Various Fourier spatial filters were used to select the spatial frequencies of the scattered pulses. The temporal profiles of the pulses scattered by a 0.4% Intralipid solution in a cell of 5-cm thickness were significantly narrowed because of the removal of the higher-frequency components by a Fourier spatial filter.

© 1995 Optical Society of America

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