title: Time-resolved Fourier spectrum and imaging in highly scattering media.
abstract: Time and spatial-gated Fourier spectra and imaging were measured and analyzed. A picosecond Kerr-Fourier gate was used to image objects by selecting the spatial frequencies of objects illuminated by a laser pulse passing through a thick turbid medium. The earlier arriving ballistic/snake light and most of the later scattered light were spatially filtered and temporally separated to form an image. The image contrast and the signal-to-noise ratio of hidden objects in turbid media were greatly improved with the addition of Fourier spatial filtering.
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: P P
authors.initials: PP
authors.lastname: Ho
authors.forename: R R
authors.initials: RR
authors.lastname: Alfano