Ultrasound tagging of light provides a unique way to probe photon density inside turbid media. We show that this technique allows one to probe the well-known banana-shaped photon density noninvasively, giving rise to a new tool for modeling diffusive photon propagation. Moreover, we show that this technique is quantitative and allows one to get a precise determination of the absorbing constituents inside the turbid medium.
© 2002 Optical Society of America
(110.7050) Imaging systems : Turbid media
(110.7170) Imaging systems : Ultrasound
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(290.1990) Scattering : Diffusion
A. Lev and B. G. Sfez, "Direct, noninvasive detection of photon density in turbid media," Opt. Lett. 27, 473-475 (2002)