Abstract
Acousto-optic sensing (AOS) is a dual-wave sensing technique based on the ultrasound modulation of diffuse light in a turbid medium. We experimentally demonstrate the feasibility of combining AOS and conventional ultrasound imaging by use of a commercially available pulsed-ultrasound scanner coupled with a photorefractive crystal-based optical interferometry system. Optically absorbing targets embedded in highly diffusive phantoms are imaged through a thickness of with millimeter resolution. The acousto-optic images are intrinsically coregistered with the ultrasound images.
© 2005 Optical Society of America
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