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Ultrafast acousto-optic imaging with ultrasonic plane waves

By Jean-Baptiste Laudereau, Alexander A Grabar, Mickaël Tanter, Jean-Luc Gennisson and François Ramaz


International audienceDue to multiple light scattering inside biological tissues, deep non-invasive optical medical imaging is very challenging. Acousto-optic imaging is a technique coupling ultrasound and light that allows recovering optical contrast at depths of few centimeters with a millimeter resolution. Recent advances in acousto-optic imaging are using short focused ultra-sound pulses often averaged over several hundred or thousand pulses. As the pulsing rate of commercial probes is limited to about few ultrasound cycles every 100 µs, acquiring an acousto-optic image usually takes several tens of seconds due to the high number of acoustic pulses excitation. We propose here a new acousto-optic imaging technique based on the use of ultrasound plane waves instead of focused ones that allows increasing drastically the imaging rate

Topics: Acousto-optics, Imaging through turbid media, Turbid media, Ultrasound, Holo-graphic interferometry, [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]
Publisher: Optical Society of America
Year: 2016
DOI identifier: 10.1364/OE.24.003774
OAI identifier: oai:HAL:hal-01297520v1
Provided by: Hal-Diderot

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