Ref HAL: hal-00741034_v1
Ref Arxiv: 1210.3328
DOI: 10.1364/OL.37.003216
WoS: 000307226700070
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
10 Citations
Résumé:

Acousto-optical coherence tomography (AOCT) consists in using random phase jumps on ultrasound and light to achieve a millimeter resolution when imaging thick scattering media. We combined this technique with heterodyne off-axis digital holography. Two-dimensional images of absorbing objects embedded in scattering phantoms are obtained with a good signal-to-noise ratio. We study the impact of the phase modulation characteristics on the amplitude of the acousto-optic signal and on the contrast and apparent size of the absorbing inclusion.