title: Time resolved three-dimensional acousto-optic imaging of thick scattering media.
abstract: Acousto-optic imaging is based on light interaction with focused ultrasound in a scattering medium. Thanks to photorefractive holography combined with pulsed ultrasound, we perform a time-resolved detection of ultrasound-modulated photons in the therapeutic window (780 nm). A high-gain SPS:Te crystal is used for this purpose and enables us to image through large optical thickness (500 mean free paths). We are able to generate three-dimensional (3D) acousto-optic images by translating a multielement ultrasound probe in only one direction. A 3D absorbing object is imaged through a 3 cm thick phantom.
authors: Institut Langevin, ESPCI ParisTech, CNRS UMR 7587, INSERM U979, 10 Rue Vauquelin, F-75231 Paris Cedex 05, France.
authors: Salma
authors: S
authors: Farahi
authors: Emilie
authors: E
authors: Benoit
authors: Alexander A
authors: AA
authors: Grabar
authors: Jean-Pierre
authors: JP
authors: Huignard
authors: Francois
authors: F
authors: Ramaz