Fourier transform acousto-optic imaging with off-axis holographic detection - Archive ouverte HAL
Article Dans Une Revue Applied optics Année : 2021

Fourier transform acousto-optic imaging with off-axis holographic detection

Résumé

Acousto-optic (AO) imaging is an in-depth optical imaging technique of highly scattering media. One challenging end-application for this technique is to perform imaging of living biological tissues. Indeed, because it relies on coherent illumination, AO imaging is sensitive to speckle decorrelation occurring on the millisecond time scale. Camera-based detections are well suited for in vivo imaging provided their integration time is lower than those decorrelation time scales. We present Fourier transform acousto-optic imaging combined with off-axis holography, which relies on plane waves and long-duration pulses. We demonstrate, for the first time to the best of our knowledge, a two-dimensional imaging system fully compatible with in vivo imaging prerequisites. The method is validated experimentally by performing in-depth imaging inside a multiple scattering sample.
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Dates et versions

hal-03325763 , version 1 (02-09-2021)

Identifiants

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Louis Dutheil, Maïmouna Bocoum, Mathias Fink, Sébastien M Popoff, François Ramaz, et al.. Fourier transform acousto-optic imaging with off-axis holographic detection. Applied optics, 2021, 60 (24), pp.7107. ⟨10.1364/AO.427181⟩. ⟨hal-03325763⟩
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