%0 Journal Article
%T Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light
%+ Institut Langevin - Ondes et Images (UMR7587) (IL)
%+ Ecole Polytechnique Fédérale de Lausanne (EPFL)
%+ Laboratoire Charles Coulomb (L2C)
%A Lesaffre, Max
%A Farahi, Salma
%A Ramaz, François
%A Gross, Michel
%< avec comité de lecture
%@ 1559-128X
%J Applied optics
%I Optical Society of America
%V 52
%N 5
%P 949-957
%8 2013-02-07
%D 2013
%Z 1302.1343
%R 10.1364/AO.52.000949
%Z OCIS Codes (110.7050) Imaging systems : Turbid media (110.7170) Imaging systems : Ultrasound (160.5320) Materials : Photorefractive materials (170.3660) Medical optics and biotechnology : Light propagation in tissues (170.3880) Medical optics and biotech
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles
%X Acousto-Optical Coherence Tomography (AOCT) is a variant of Acousto Optic Imaging (also called Ultrasound modulated Optical Tomography) that makes possible to get resolution along the ultrasound propagation axis $z$. We present here new AOCT experimental results, and we study how the $z$ resolution depends on time step between phase jumps $T_\phi$, or on the correlation length $\Delta z$. By working at low resolution, we perform a quantitative comparison of the $z$ measurements with the theoretical Point Spread Function (PSF). We present also images recorded with different $z$ resolution, and we qualitatively show how the image quality varies with $T_\phi$, or $\Delta z$.
%G English
%2 https://hal.science/hal-00785372/document
%2 https://hal.science/hal-00785372/file/manip_max_25_HAL.pdf
%L hal-00785372
%U https://hal.science/hal-00785372
%~ UPMC
%~ ESPCI
%~ CNRS
%~ PARISTECH
%~ IL
%~ L2C
%~ LANGEVIN
%~ PSL
%~ MIPS
%~ UNIV-MONTPELLIER
%~ SORBONNE-UNIVERSITE
%~ SU-INF-2018
%~ SU-SCIENCES
%~ UP-SCIENCES
%~ ESPCI-PSL
%~ SU-TI
%~ ALLIANCE-SU
%~ UM-2015-2021