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Test bar charts hidden in a 5.5-cm-thick 2.5% Intralipid solution were imaged as a function of phantom depth and size with steady-state Fourier and picosecond Kerr–Fourier imaging systems. With time and space gating, a series of 250-μm bars placed in a thick highly scattering medium were resolved at a signal level of ~10−10 of the illumination intensity.
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Wang et al. (1993) studied this question.
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