HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Theoretical description of the photorefractive detection of the ultrasound modulated photons in scattering media

Abstract : Acousto-optic imaging of thick biological tissues can be obtained in real-time with an adaptive-wavefront holographic setup, where the holographic media is a self-developping photorefractive crystal. As a consequence, the interference signal resulting from the acousto-optic effect can be easily collected with a high etendue and fast single photodetector. We present a statistical model of the field propagating through the scattering media and show why the various acoustic frequency components contained in the speckle output pattern are uncorrelated. We then give a detailed description of the signal measured through the photorefractive effect, in order to explain the quadratic pressure response observed for the two commonly used configurations setup e.g an amplitude or a phase modulation of the ultrasound
Document type :
Journal articles
Complete list of metadata

https://hal-iogs.archives-ouvertes.fr/hal-00671127
Contributor : Marie-Laure Edwards Connect in order to contact the contributor
Submitted on : Thursday, February 16, 2012 - 4:45:59 PM
Last modification on : Thursday, April 14, 2022 - 3:48:02 PM
Long-term archiving on: : Thursday, May 17, 2012 - 2:35:06 AM

File

PhD1-55.pdf
Publisher files allowed on an open archive

Identifiers

  • HAL Id : hal-00671127, version 1

Citation

Michel Gross, François Ramaz, B.C. Forget, Michael Atlan, Albert-Claude Boccara, et al.. Theoretical description of the photorefractive detection of the ultrasound modulated photons in scattering media. Optics Express, Optical Society of America - OSA Publishing, 2005, 13 (18), pp.7097-7112. ⟨hal-00671127⟩

Share

Metrics

Record views

322

Files downloads

357