A combination of light and focused ultrasound waves provides a unique way to obtain directly three-dimensional absorption data in a turbid medium. We present the combination of an ultrasound wave and light in which both the input and the output optodes are on the same side of the sample (reflectance geometry). This technique permits local detection in depth of the presence of a purely absorbing object, without further mathematical processing. It is a promising technique for medical imaging and monitoring of tissues.
© 2000 Optical Society of America
(030.6140) Coherence and statistical optics : Speckle
(110.7170) Imaging systems : Ultrasound
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.5270) Medical optics and biotechnology : Photon density waves
(170.7050) Medical optics and biotechnology : Turbid media
A. Lev, Z. Kotler, and B. G. Sfez, "Ultrasound tagged light imaging in turbid media in a reflectance geometry," Opt. Lett. 25, 378-380 (2000)