Abstract
This work extends modulated imaging, a recently developed technique based on the projection of structured light on a turbid medium that is able to measure optical properties of the high-scattering medium and perform tomography. We observe that structured light obliquely projected on a turbid medium undergoes a spatial shift during propagation. We propose a method to measure the spatial phase shift of a sinusoidal fringe pattern projected in a turbid medium, and we present a model derived from the diffusion approximation to describe the light propagation. Experimental validation by measurements performed on liquid phantoms is presented.
© 2008 Optical Society of America
Full Article | PDF ArticleMore Like This
David J. Cuccia, Frederic Bevilacqua, Anthony J. Durkin, and Bruce J. Tromberg
Opt. Lett. 30(11) 1354-1356 (2005)
D. A. Boas and A. G. Yodh
J. Opt. Soc. Am. A 14(1) 192-215 (1997)
Simeon Geiger, Philipp Hank, and Alwin Kienle
J. Opt. Soc. Am. A 40(2) 294-304 (2023)