 |
 |
Journal articles
Acousto-optical coherence tomography using random phase jumps on ultrasound and light
Abstract : Imaging objects embedded within highly scattering media by coupling light and ultrasounds (US) is a challenging approach. In deed, US enable direct access to the spatial localization, though resolution can be poor along their axis (cm). Up to now, several configurations have been studied, giving a millimetric axial resolution by applying to the US a microsecond pulse regime, as is the case with conventional echography. We introduce a new approach called Acousto-Optical Coherence Tomography (AOCT), enabling us to get a millimetric resolution with continuous US and light beams by applying random phase jumps on US and light. An experimental demonstration is performed with a self-adaptive holographic setup containing a photorefractive GaAs bulk crystal and a single large area photodetector.
Cited literature [30 references]
https://hal-iogs.archives-ouvertes.fr/hal-00554320
Contributor : Philippe Delaye <>
Submitted on : Monday, January 10, 2011 - 3:57:37 PM
Last modification on : Thursday, June 17, 2021 - 3:46:38 AM
Long-term archiving on: : Monday, April 11, 2011 - 4:25:09 PM
Contributor : Philippe Delaye <>
Submitted on : Monday, January 10, 2011 - 3:57:37 PM
Last modification on : Thursday, June 17, 2021 - 3:46:38 AM
Long-term archiving on: : Monday, April 11, 2011 - 4:25:09 PM
File
Lesaffre_OE_HAL.pdf
Publisher files allowed on an open archive